diff --git a/dist/jssip.js b/dist/jssip.js
index e437f2e67..8bc90de44 100644
--- a/dist/jssip.js
+++ b/dist/jssip.js
@@ -15728,7 +15728,16 @@ module.exports = /*#__PURE__*/function (_EventEmitter) {
     key: "sendRequest",
     value: function sendRequest(method, options) {
       logger.debug('sendRequest()');
-      return this._dialog.sendRequest(method, options);
+      if (this._dialog) {
+        return this._dialog.sendRequest(method, options);
+      } else {
+        var dialogsArray = Object.values(this._earlyDialogs);
+        if (dialogsArray.length > 0) {
+          return dialogsArray[0].sendRequest(method, options);
+        }
+        logger.warn('No valid early dialog found to send request');
+        return;
+      }
     }
 
     /**
@@ -16215,6 +16224,10 @@ module.exports = /*#__PURE__*/function (_EventEmitter) {
         if (early_dialog) {
           early_dialog.update(message, type);
           this._dialog = early_dialog;
+          // When an early dialog is promoted to a confirmed dialog (e.g., after calling an IVR menu),
+          // the local CSeq must be synchronized
+          // with the value from the 200 OK response to keep the dialog sequence in sync.
+          this._dialog._local_seqnum = message.cseq;
           delete this._earlyDialogs[id];
           return true;
         }
@@ -17565,7 +17578,7 @@ module.exports = /*#__PURE__*/function (_EventEmitter) {
       this._direction = 'outgoing';
 
       // Check RTCSession Status.
-      if (this._session.status !== this._session.C.STATUS_CONFIRMED && this._session.status !== this._session.C.STATUS_WAITING_FOR_ACK) {
+      if (this._session.status !== this._session.C.STATUS_CONFIRMED && this._session.status !== this._session.C.STATUS_WAITING_FOR_ACK && this._session.status !== this._session.C.STATUS_1XX_RECEIVED) {
         throw new Exceptions.InvalidStateError(this._session.status);
       }
       var extraHeaders = Utils.cloneArray(options.extraHeaders);
diff --git a/dist/jssip.min.js b/dist/jssip.min.js
index 17bdd95ff..df0a38fac 100644
--- a/dist/jssip.min.js
+++ b/dist/jssip.min.js
@@ -6,4 +6,4 @@
  * License: MIT
  */
 
-!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{("undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this).JsSIP=e()}}(function(){return function(){return function e(t,n,r){function o(s,l){if(!n[s]){if(!t[s]){var u="function"==typeof require&&require;if(!l&&u)return u(s,!0);if(i)return i(s,!0);var a=new Error("Cannot find module '"+s+"'");throw a.code="MODULE_NOT_FOUND",a}var c=n[s]={exports:{}};t[s][0].call(c.exports,function(e){return o(t[s][1][e]||e)},c,c.exports,e,t,n,r)}return n[s].exports}for(var i="function"==typeof require&&require,s=0;s<r.length;s++)o(r[s]);return o}}()({1:[function(e,t,n){"use strict";function r(e,t){var n="undefined"!=typeof Symbol&&e[Symbol.iterator]||e["@@iterator"];if(!n){if(Array.isArray(e)||(n=function(e,t){if(e){if("string"==typeof e)return o(e,t);var n={}.toString.call(e).slice(8,-1);return"Object"===n&&e.constructor&&(n=e.constructor.name),"Map"===n||"Set"===n?Array.from(e):"Arguments"===n||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)?o(e,t):void 0}}(e))||t&&e&&"number"==typeof e.length){n&&(e=n);var r=0,i=function(){};return{s:i,n:function(){return r>=e.length?{done:!0}:{done:!1,value:e[r++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var s,l=!0,u=!1;return{s:function(){n=n.call(e)},n:function(){var e=n.next();return l=e.done,e},e:function(e){u=!0,s=e},f:function(){try{l||null==n.return||n.return()}finally{if(u)throw s}}}}function o(e,t){(null==t||t>e.length)&&(t=e.length);for(var n=0,r=Array(t);n<t;n++)r[n]=e[n];return r}var i=e("./Utils"),s=e("./Constants"),l=e("./Grammar"),u=e("./URI"),a=e("./Socket"),c=e("./Exceptions");n.settings={authorization_user:null,password:null,realm:null,ha1:null,authorization_jwt:null,display_name:null,uri:null,contact_uri:null,instance_id:null,use_preloaded_route:!1,session_timers:!0,session_timers_refresh_method:s.UPDATE,session_timers_force_refresher:!1,no_answer_timeout:60,register:!0,register_expires:600,register_from_tag_trail:"",registrar_server:null,sockets:null,connection_recovery_max_interval:s.CONNECTION_RECOVERY_MAX_INTERVAL,connection_recovery_min_interval:s.CONNECTION_RECOVERY_MIN_INTERVAL,extra_headers:null,via_host:"".concat(i.createRandomToken(12),".invalid")};var f={mandatory:{sockets:function(e){var t=[];if(a.isSocket(e))t.push({socket:e});else{if(!Array.isArray(e)||!e.length)return;var n,o=r(e);try{for(o.s();!(n=o.n()).done;){var i=n.value;Object.prototype.hasOwnProperty.call(i,"socket")&&a.isSocket(i.socket)?t.push(i):a.isSocket(i)&&t.push({socket:i})}}catch(e){o.e(e)}finally{o.f()}}return t},uri:function(e){/^sip:/i.test(e)||(e="".concat(s.SIP,":").concat(e));var t=u.parse(e);return t&&t.user?t:void 0}},optional:{authorization_user:function(e){return-1===l.parse('"'.concat(e,'"'),"quoted_string")?void 0:e},authorization_jwt:function(e){if("string"==typeof e)return e},user_agent:function(e){if("string"==typeof e)return e},connection_recovery_max_interval:function(e){if(i.isDecimal(e)){var t=Number(e);if(t>0)return t}},connection_recovery_min_interval:function(e){if(i.isDecimal(e)){var t=Number(e);if(t>0)return t}},contact_uri:function(e){if("string"==typeof e){var t=l.parse(e,"SIP_URI");if(-1!==t)return t}},display_name:function(e){return e},instance_id:function(e){return/^uuid:/i.test(e)&&(e=e.substr(5)),-1===l.parse(e,"uuid")?void 0:e},no_answer_timeout:function(e){if(i.isDecimal(e)){var t=Number(e);if(t>0)return t}},session_timers:function(e){if("boolean"==typeof e)return e},session_timers_refresh_method:function(e){if("string"==typeof e&&((e=e.toUpperCase())===s.INVITE||e===s.UPDATE))return e},session_timers_force_refresher:function(e){if("boolean"==typeof e)return e},password:function(e){return String(e)},realm:function(e){return String(e)},ha1:function(e){return String(e)},register:function(e){if("boolean"==typeof e)return e},register_expires:function(e){if(i.isDecimal(e)){var t=Number(e);if(t>0)return t}},register_from_tag_trail:function(e){return"function"==typeof e?e:String(e)},registrar_server:function(e){/^sip:/i.test(e)||(e="".concat(s.SIP,":").concat(e));var t=u.parse(e);return t?t.user?void 0:t:void 0},use_preloaded_route:function(e){if("boolean"==typeof e)return e},extra_headers:function(e){var t=[];if(Array.isArray(e)&&e.length){var n,o=r(e);try{for(o.s();!(n=o.n()).done;){var i=n.value;"string"==typeof i&&t.push(i)}}catch(e){o.e(e)}finally{o.f()}return t}}}};n.load=function(e,t){for(var n in f.mandatory){if(!t.hasOwnProperty(n))throw new c.ConfigurationError(n);var r=t[n],o=f.mandatory[n](r);if(void 0===o)throw new c.ConfigurationError(n,r);e[n]=o}for(var s in f.optional)if(t.hasOwnProperty(s)){var l=t[s];if(i.isEmpty(l))continue;var u=f.optional[s](l);if(void 0===u)throw new c.ConfigurationError(s,l);e[s]=u}}},{"./Constants":2,"./Exceptions":6,"./Grammar":7,"./Socket":22,"./URI":27,"./Utils":28}],2:[function(e,t,n){"use strict";var r=e("../package.json");t.exports={USER_AGENT:"".concat(r.title," ").concat(r.version),SIP:"sip",SIPS:"sips",causes:{CONNECTION_ERROR:"Connection Error",REQUEST_TIMEOUT:"Request Timeout",SIP_FAILURE_CODE:"SIP Failure Code",INTERNAL_ERROR:"Internal Error",BUSY:"Busy",REJECTED:"Rejected",REDIRECTED:"Redirected",UNAVAILABLE:"Unavailable",NOT_FOUND:"Not Found",ADDRESS_INCOMPLETE:"Address Incomplete",INCOMPATIBLE_SDP:"Incompatible SDP",MISSING_SDP:"Missing SDP",AUTHENTICATION_ERROR:"Authentication Error",BYE:"Terminated",WEBRTC_ERROR:"WebRTC Error",CANCELED:"Canceled",NO_ANSWER:"No Answer",EXPIRES:"Expires",NO_ACK:"No ACK",DIALOG_ERROR:"Dialog Error",USER_DENIED_MEDIA_ACCESS:"User Denied Media Access",BAD_MEDIA_DESCRIPTION:"Bad Media Description",RTP_TIMEOUT:"RTP Timeout"},SIP_ERROR_CAUSES:{REDIRECTED:[300,301,302,305,380],BUSY:[486,600],REJECTED:[403,603],NOT_FOUND:[404,604],UNAVAILABLE:[480,410,408,430],ADDRESS_INCOMPLETE:[484,424],INCOMPATIBLE_SDP:[488,606],AUTHENTICATION_ERROR:[401,407]},ACK:"ACK",BYE:"BYE",CANCEL:"CANCEL",INFO:"INFO",INVITE:"INVITE",MESSAGE:"MESSAGE",NOTIFY:"NOTIFY",OPTIONS:"OPTIONS",REGISTER:"REGISTER",REFER:"REFER",UPDATE:"UPDATE",SUBSCRIBE:"SUBSCRIBE",DTMF_TRANSPORT:{INFO:"INFO",RFC2833:"RFC2833"},REASON_PHRASE:{100:"Trying",180:"Ringing",181:"Call Is Being Forwarded",182:"Queued",183:"Session Progress",199:"Early Dialog Terminated",200:"OK",202:"Accepted",204:"No Notification",300:"Multiple Choices",301:"Moved Permanently",302:"Moved Temporarily",305:"Use Proxy",380:"Alternative Service",400:"Bad Request",401:"Unauthorized",402:"Payment Required",403:"Forbidden",404:"Not Found",405:"Method Not Allowed",406:"Not Acceptable",407:"Proxy Authentication Required",408:"Request Timeout",410:"Gone",412:"Conditional Request Failed",413:"Request Entity Too Large",414:"Request-URI Too Long",415:"Unsupported Media Type",416:"Unsupported URI Scheme",417:"Unknown Resource-Priority",420:"Bad Extension",421:"Extension Required",422:"Session Interval Too Small",423:"Interval Too Brief",424:"Bad Location Information",428:"Use Identity Header",429:"Provide Referrer Identity",430:"Flow Failed",433:"Anonymity Disallowed",436:"Bad Identity-Info",437:"Unsupported Certificate",438:"Invalid Identity Header",439:"First Hop Lacks Outbound Support",440:"Max-Breadth Exceeded",469:"Bad Info Package",470:"Consent Needed",478:"Unresolvable Destination",480:"Temporarily Unavailable",481:"Call/Transaction Does Not Exist",482:"Loop Detected",483:"Too Many Hops",484:"Address Incomplete",485:"Ambiguous",486:"Busy Here",487:"Request Terminated",488:"Not Acceptable Here",489:"Bad Event",491:"Request Pending",493:"Undecipherable",494:"Security Agreement Required",500:"JsSIP Internal Error",501:"Not Implemented",502:"Bad Gateway",503:"Service Unavailable",504:"Server Time-out",505:"Version Not Supported",513:"Message Too Large",580:"Precondition Failure",600:"Busy Everywhere",603:"Decline",604:"Does Not Exist Anywhere",606:"Not Acceptable"},ALLOWED_METHODS:"INVITE,ACK,CANCEL,BYE,UPDATE,MESSAGE,OPTIONS,REFER,INFO,NOTIFY",ACCEPTED_BODY_TYPES:"application/sdp, application/dtmf-relay",MAX_FORWARDS:69,SESSION_EXPIRES:90,MIN_SESSION_EXPIRES:60,CONNECTION_RECOVERY_MAX_INTERVAL:30,CONNECTION_RECOVERY_MIN_INTERVAL:2}},{"../package.json":40}],3:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function o(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,i(r.key),r)}}function i(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var o=n.call(e,t||"default");if("object"!=r(o))return o;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}var s=e("./Logger"),l=e("./SIPMessage"),u=e("./Constants"),a=e("./Transactions"),c=e("./Dialog/RequestSender"),f=e("./Utils"),h=new s("Dialog"),d={STATUS_EARLY:1,STATUS_CONFIRMED:2,STATUS_TERMINATED:3};t.exports=function(){return e=function e(t,n,r){var o=arguments.length>3&&void 0!==arguments[3]?arguments[3]:d.STATUS_CONFIRMED;if(function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this._owner=t,this._ua=t._ua,this._uac_pending_reply=!1,this._uas_pending_reply=!1,!n.hasHeader("contact"))return{error:"unable to create a Dialog without Contact header field"};n instanceof l.IncomingResponse&&(o=n.status_code<200?d.STATUS_EARLY:d.STATUS_CONFIRMED);var i=n.parseHeader("contact");"UAS"===r?(this._id={call_id:n.call_id,local_tag:n.to_tag,remote_tag:n.from_tag,toString:function(){return this.call_id+this.local_tag+this.remote_tag}},this._state=o,this._remote_seqnum=n.cseq,this._local_uri=n.parseHeader("to").uri,this._remote_uri=n.parseHeader("from").uri,this._remote_target=i.uri,this._route_set=n.getHeaders("record-route"),this._ack_seqnum=this._remote_seqnum):"UAC"===r&&(this._id={call_id:n.call_id,local_tag:n.from_tag,remote_tag:n.to_tag,toString:function(){return this.call_id+this.local_tag+this.remote_tag}},this._state=o,this._local_seqnum=n.cseq,this._local_uri=n.parseHeader("from").uri,this._remote_uri=n.parseHeader("to").uri,this._remote_target=i.uri,this._route_set=n.getHeaders("record-route").reverse(),this._ack_seqnum=null),this._ua.newDialog(this),h.debug("new ".concat(r," dialog created with status ").concat(this._state===d.STATUS_EARLY?"EARLY":"CONFIRMED"))},n=[{key:"C",get:function(){return d}}],(t=[{key:"id",get:function(){return this._id}},{key:"local_seqnum",get:function(){return this._local_seqnum},set:function(e){this._local_seqnum=e}},{key:"owner",get:function(){return this._owner}},{key:"uac_pending_reply",get:function(){return this._uac_pending_reply},set:function(e){this._uac_pending_reply=e}},{key:"uas_pending_reply",get:function(){return this._uas_pending_reply}},{key:"isTerminated",value:function(){return this._status===d.STATUS_TERMINATED}},{key:"update",value:function(e,t){this._state=d.STATUS_CONFIRMED,h.debug("dialog ".concat(this._id.toString(),"  changed to CONFIRMED state")),"UAC"===t&&(this._route_set=e.getHeaders("record-route").reverse())}},{key:"terminate",value:function(){h.debug("dialog ".concat(this._id.toString()," deleted")),this._ua.destroyDialog(this),this._state=d.STATUS_TERMINATED}},{key:"sendRequest",value:function(e){var t=this,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},r=f.cloneArray(n.extraHeaders),o=f.cloneObject(n.eventHandlers),i=n.body||null,s=this._createRequest(e,r,i);return o.onAuthenticated=function(){t._local_seqnum+=1},new c(this,s,o).send(),s}},{key:"receiveRequest",value:function(e){this._checkInDialogRequest(e)&&(e.method===u.ACK&&null!==this._ack_seqnum?this._ack_seqnum=null:e.method===u.INVITE&&(this._ack_seqnum=e.cseq),this._owner.receiveRequest(e))}},{key:"_createRequest",value:function(e,t,n){t=f.cloneArray(t),this._local_seqnum||(this._local_seqnum=Math.floor(1e4*Math.random()));var r=e===u.CANCEL||e===u.ACK?this._local_seqnum:this._local_seqnum+=1;return new l.OutgoingRequest(e,this._remote_target,this._ua,{cseq:r,call_id:this._id.call_id,from_uri:this._local_uri,from_tag:this._id.local_tag,to_uri:this._remote_uri,to_tag:this._id.remote_tag,route_set:this._route_set},t,n)}},{key:"_checkInDialogRequest",value:function(e){var t=this;if(this._remote_seqnum)if(e.cseq<this._remote_seqnum){if(e.method!==u.ACK)return e.reply(500),!1;if(null===this._ack_seqnum||e.cseq!==this._ack_seqnum)return!1}else e.cseq>this._remote_seqnum&&(this._remote_seqnum=e.cseq);else this._remote_seqnum=e.cseq;if(e.method===u.INVITE||e.method===u.UPDATE&&e.body){if(!0===this._uac_pending_reply)e.reply(491);else{if(!0===this._uas_pending_reply){var n=1+(10*Math.random()|0);return e.reply(500,null,["Retry-After:".concat(n)]),!1}this._uas_pending_reply=!0;var r=function(){e.server_transaction.state!==a.C.STATUS_ACCEPTED&&e.server_transaction.state!==a.C.STATUS_COMPLETED&&e.server_transaction.state!==a.C.STATUS_TERMINATED||(e.server_transaction.removeListener("stateChanged",r),t._uas_pending_reply=!1)};e.server_transaction.on("stateChanged",r)}e.hasHeader("contact")&&e.server_transaction.on("stateChanged",function(){e.server_transaction.state===a.C.STATUS_ACCEPTED&&(t._remote_target=e.parseHeader("contact").uri)})}else e.method===u.NOTIFY&&e.hasHeader("contact")&&e.server_transaction.on("stateChanged",function(){e.server_transaction.state===a.C.STATUS_COMPLETED&&(t._remote_target=e.parseHeader("contact").uri)});return!0}}])&&o(e.prototype,t),n&&o(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e;var e,t,n}()},{"./Constants":2,"./Dialog/RequestSender":4,"./Logger":9,"./SIPMessage":21,"./Transactions":24,"./Utils":28}],4:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function o(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,i(r.key),r)}}function i(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var o=n.call(e,t||"default");if("object"!=r(o))return o;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}var s=e("../Constants"),l=e("../Transactions"),u=e("../RequestSender"),a={onRequestTimeout:function(){},onTransportError:function(){},onSuccessResponse:function(){},onErrorResponse:function(){},onAuthenticated:function(){},onDialogError:function(){}};t.exports=function(){return e=function e(t,n,r){for(var o in function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this._dialog=t,this._ua=t._ua,this._request=n,this._eventHandlers=r,this._reattempt=!1,this._reattemptTimer=null,a)Object.prototype.hasOwnProperty.call(a,o)&&(this._eventHandlers[o]||(this._eventHandlers[o]=a[o]))},(t=[{key:"request",get:function(){return this._request}},{key:"send",value:function(){var e=this,t=new u(this._ua,this._request,{onRequestTimeout:function(){e._eventHandlers.onRequestTimeout()},onTransportError:function(){e._eventHandlers.onTransportError()},onAuthenticated:function(t){e._eventHandlers.onAuthenticated(t)},onReceiveResponse:function(t){e._receiveResponse(t)}});if(t.send(),(this._request.method===s.INVITE||this._request.method===s.UPDATE&&this._request.body)&&t.clientTransaction.state!==l.C.STATUS_TERMINATED){this._dialog.uac_pending_reply=!0;var n=function(){t.clientTransaction.state!==l.C.STATUS_ACCEPTED&&t.clientTransaction.state!==l.C.STATUS_COMPLETED&&t.clientTransaction.state!==l.C.STATUS_TERMINATED||(t.clientTransaction.removeListener("stateChanged",n),e._dialog.uac_pending_reply=!1)};t.clientTransaction.on("stateChanged",n)}}},{key:"_receiveResponse",value:function(e){var t=this;408===e.status_code||481===e.status_code?this._eventHandlers.onDialogError(e):e.method===s.INVITE&&491===e.status_code?this._reattempt?e.status_code>=200&&e.status_code<300?this._eventHandlers.onSuccessResponse(e):e.status_code>=300&&this._eventHandlers.onErrorResponse(e):(this._request.cseq=this._dialog.local_seqnum+=1,this._reattemptTimer=setTimeout(function(){t._dialog.isTerminated()||(t._reattempt=!0,t.send())},1e3)):e.status_code>=200&&e.status_code<300?this._eventHandlers.onSuccessResponse(e):e.status_code>=300&&this._eventHandlers.onErrorResponse(e)}}])&&o(e.prototype,t),n&&o(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e;var e,t,n}()},{"../Constants":2,"../RequestSender":20,"../Transactions":24}],5:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function o(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,i(r.key),r)}}function i(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var o=n.call(e,t||"default");if("object"!=r(o))return o;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}var s=e("./Logger"),l=e("./Utils"),u=new s("DigestAuthentication");t.exports=function(){return e=function e(t){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this._credentials=t,this._cnonce=null,this._nc=0,this._ncHex="00000000",this._algorithm=null,this._realm=null,this._nonce=null,this._opaque=null,this._stale=null,this._qop=null,this._method=null,this._uri=null,this._ha1=null,this._response=null},(t=[{key:"get",value:function(e){switch(e){case"realm":return this._realm;case"ha1":return this._ha1;default:return void u.warn('get() | cannot get "%s" parameter',e)}}},{key:"authenticate",value:function(e,t){var n=e.method,r=e.ruri,o=e.body,i=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(this._algorithm=t.algorithm,this._realm=t.realm,this._nonce=t.nonce,this._opaque=t.opaque,this._stale=t.stale,this._algorithm){if("MD5"!==this._algorithm)return u.warn('authenticate() | challenge with Digest algorithm different than "MD5", authentication aborted'),!1}else this._algorithm="MD5";if(!this._nonce)return u.warn("authenticate() | challenge without Digest nonce, authentication aborted"),!1;if(!this._realm)return u.warn("authenticate() | challenge without Digest realm, authentication aborted"),!1;if(!this._credentials.password){if(!this._credentials.ha1)return u.warn("authenticate() | no plain SIP password nor ha1 provided, authentication aborted"),!1;if(this._credentials.realm!==this._realm)return u.warn('authenticate() | no plain SIP password, and stored `realm` does not match the given `realm`, cannot authenticate [stored:"%s", given:"%s"]',this._credentials.realm,this._realm),!1}if(t.qop)if(t.qop.indexOf("auth-int")>-1)this._qop="auth-int";else{if(!(t.qop.indexOf("auth")>-1))return u.warn('authenticate() | challenge without Digest qop different than "auth" or "auth-int", authentication aborted'),!1;this._qop="auth"}else this._qop=null;this._method=n,this._uri=r,this._cnonce=i||l.createRandomToken(12),this._nc+=1;var s,a,c=Number(this._nc).toString(16);return 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i=d.cloneArray(r.extraHeaders),s=d.cloneObject(r.eventHandlers),l=r.contentType||"application/sdp";for(var u in s)Object.prototype.hasOwnProperty.call(s,u)&&this.on(u,s[u]);i.push("Content-Type: ".concat(l)),this._request=new h.OutgoingRequest(f.OPTIONS,e,this._ua,null,i),t&&(this._request.body=t);var a=new _(this._ua,this._request,{onRequestTimeout:function(){n._onRequestTimeout()},onTransportError:function(){n._onTransportError()},onReceiveResponse:function(e){n._receiveResponse(e)}});this._newOptions("local",this._request),a.send()}},{key:"init_incoming",value:function(e){this._request=e,this._newOptions("remote",e),this._is_replied||(this._is_replied=!0,e.reply(200)),this._close()}},{key:"accept",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=d.cloneArray(e.extraHeaders),n=e.body;if("incoming"!==this._direction)throw new p.NotSupportedError('"accept" not supported for outgoing Options');if(this._is_replied)throw new Error("incoming Options 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t=d.sipErrorCause(e.status_code);this._failed("remote",e,t)}}},{key:"_onRequestTimeout",value:function(){this._closed||this._failed("system",null,f.causes.REQUEST_TIMEOUT)}},{key:"_onTransportError",value:function(){this._closed||this._failed("system",null,f.causes.CONNECTION_ERROR)}},{key:"_close",value:function(){this._closed=!0,this._ua.destroyMessage(this)}},{key:"_newOptions",value:function(e,t){"remote"===e?(this._direction="incoming",this._local_identity=t.to,this._remote_identity=t.from):"local"===e&&(this._direction="outgoing",this._local_identity=t.from,this._remote_identity=t.to),this._ua.newOptions(this,{originator:e,message:this,request:t})}},{key:"_failed",value:function(e,t,n){m.debug("OPTIONS failed"),this._close(),m.debug('emit "failed"'),this.emit("failed",{originator:e,response:t||null,cause:n})}},{key:"_succeeded",value:function(e,t){m.debug("OPTIONS succeeded"),this._close(),m.debug('emit 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this._status}},{key:"isInProgress",value:function(){switch(this._status){case I.STATUS_NULL:case I.STATUS_INVITE_SENT:case I.STATUS_1XX_RECEIVED:case I.STATUS_INVITE_RECEIVED:case I.STATUS_WAITING_FOR_ANSWER:return!0;default:return!1}}},{key:"isEstablished",value:function(){switch(this._status){case I.STATUS_ANSWERED:case I.STATUS_WAITING_FOR_ACK:case I.STATUS_CONFIRMED:return!0;default:return!1}}},{key:"isEnded",value:function(){switch(this._status){case I.STATUS_CANCELED:case I.STATUS_TERMINATED:return!0;default:return!1}}},{key:"isMuted",value:function(){return{audio:this._audioMuted,video:this._videoMuted}}},{key:"isOnHold",value:function(){return{local:this._localHold,remote:this._remoteHold}}},{key:"connect",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},n=arguments.length>2?arguments[2]:void 0;R.debug("connect()");var r=e,o=v.cloneObject(t.eventHandlers),i=v.cloneArray(t.extraHeaders),s=v.cloneObject(t.mediaConstraints,{audio:!0,video:!0}),l=t.mediaStream||null,u=v.cloneObject(t.pcConfig,{iceServers:[]}),a=t.rtcConstraints||null,c=t.rtcOfferConstraints||null;if(this._rtcOfferConstraints=c,this._rtcAnswerConstraints=t.rtcAnswerConstraints||null,this._data=t.data||this._data,void 0===e)throw new TypeError("Not enough arguments");if(this._status!==I.STATUS_NULL)throw new p.InvalidStateError(this._status);if(!window.RTCPeerConnection)throw new p.NotSupportedError("WebRTC not supported");if(!(e=this._ua.normalizeTarget(e)))throw new TypeError("Invalid target: ".concat(r));for(var f in this._sessionTimers.enabled&&v.isDecimal(t.sessionTimersExpires)&&(t.sessionTimersExpires>=_.MIN_SESSION_EXPIRES?this._sessionTimers.defaultExpires=t.sessionTimersExpires:this._sessionTimers.defaultExpires=_.SESSION_EXPIRES),o)Object.prototype.hasOwnProperty.call(o,f)&&this.on(f,o[f]);this._from_tag=v.newTag();var h=t.anonymous||!1,d={from_tag:this._from_tag};this._contact=this._ua.contact.toString({anonymous:h,outbound:!0}),h?(d.from_display_name="Anonymous",d.from_uri=new w("sip","anonymous","anonymous.invalid"),i.push("P-Preferred-Identity: ".concat(this._ua.configuration.uri.toString())),i.push("Privacy: id")):t.fromUserName&&(d.from_uri=new w("sip",t.fromUserName,this._ua.configuration.uri.host),i.push("P-Preferred-Identity: ".concat(this._ua.configuration.uri.toString()))),t.fromDisplayName&&(d.from_display_name=t.fromDisplayName),i.push("Contact: ".concat(this._contact)),i.push("Content-Type: application/sdp"),this._sessionTimers.enabled&&i.push("Session-Expires: ".concat(this._sessionTimers.defaultExpires).concat(this._ua.configuration.session_timers_force_refresher?";refresher=uac":"")),this._request=new y.InitialOutgoingInviteRequest(e,this._ua,d,i),this._id=this._request.call_id+this._from_tag,this._createRTCConnection(u,a),this._direction="outgoing",this._local_identity=this._request.from,this._remote_identity=this._request.to,n&&n(this),this._newRTCSession("local",this._request),this._sendInitialRequest(s,c,l)}},{key:"init_incoming",value:function(e,t){var n,r=this;R.debug("init_incoming()");var o=e.hasHeader("Content-Type")?e.getHeader("Content-Type").toLowerCase():void 0;e.body&&"application/sdp"!==o?e.reply(415):(this._status=I.STATUS_INVITE_RECEIVED,this._from_tag=e.from_tag,this._id=e.call_id+this._from_tag,this._request=e,this._contact=this._ua.contact.toString(),e.hasHeader("expires")&&(n=1e3*e.getHeader("expires")),e.to_tag=v.newTag(),this._createDialog(e,"UAS",!0)?(e.body?this._late_sdp=!1:this._late_sdp=!0,this._status=I.STATUS_WAITING_FOR_ANSWER,this._timers.userNoAnswerTimer=setTimeout(function(){e.reply(408),r._failed("local",null,_.causes.NO_ANSWER)},this._ua.configuration.no_answer_timeout),n&&(this._timers.expiresTimer=setTimeout(function(){r._status===I.STATUS_WAITING_FOR_ANSWER&&(e.reply(487),r._failed("system",null,_.causes.EXPIRES))},n)),this._direction="incoming",this._local_identity=e.to,this._remote_identity=e.from,t&&t(this),this._newRTCSession("remote",e),this._status!==I.STATUS_TERMINATED&&(e.reply(180,null,["Contact: ".concat(this._contact)]),this._progress("local",null))):e.reply(500,"Missing Contact header field"))}},{key:"answer",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};R.debug("answer()");var n=this._request,r=v.cloneArray(t.extraHeaders),i=v.cloneObject(t.mediaConstraints),s=t.mediaStream||null,l=v.cloneObject(t.pcConfig,{iceServers:[]}),u=t.rtcConstraints||null,a=t.rtcAnswerConstraints||null,c=v.cloneObject(t.rtcOfferConstraints),f=!1,h=!1,d=!1,m=!1;if(this._rtcAnswerConstraints=a,this._rtcOfferConstraints=t.rtcOfferConstraints||null,this._data=t.data||this._data,"incoming"!==this._direction)throw new p.NotSupportedError('"answer" not supported for outgoing RTCSession');if(this._status!==I.STATUS_WAITING_FOR_ANSWER)throw new p.InvalidStateError(this._status);if(this._sessionTimers.enabled&&v.isDecimal(t.sessionTimersExpires)&&(t.sessionTimersExpires>=_.MIN_SESSION_EXPIRES?this._sessionTimers.defaultExpires=t.sessionTimersExpires:this._sessionTimers.defaultExpires=_.SESSION_EXPIRES),this._status=I.STATUS_ANSWERED,this._createDialog(n,"UAS")){clearTimeout(this._timers.userNoAnswerTimer),r.unshift("Contact: ".concat(this._contact));var g=n.parseSDP();Array.isArray(g.media)||(g.media=[g.media]);var y,T=o(g.media);try{for(T.s();!(y=T.n()).done;){var b=y.value;"audio"===b.type&&(f=!0,b.direction&&"sendrecv"!==b.direction||(d=!0)),"video"===b.type&&(h=!0,b.direction&&"sendrecv"!==b.direction||(m=!0))}}catch(e){T.e(e)}finally{T.f()}if(s&&!1===i.audio){var S,C=o(s.getAudioTracks());try{for(C.s();!(S=C.n()).done;){var E=S.value;s.removeTrack(E)}}catch(e){C.e(e)}finally{C.f()}}if(s&&!1===i.video){var A,w=o(s.getVideoTracks());try{for(w.s();!(A=w.n()).done;){var O=A.value;s.removeTrack(O)}}catch(e){w.e(e)}finally{w.f()}}s||void 0!==i.audio||(i.audio=d),s||void 0!==i.video||(i.video=m),s||f||c.offerToReceiveAudio||(i.audio=!1),s||h||c.offerToReceiveVideo||(i.video=!1),this._createRTCConnection(l,u),Promise.resolve().then(function(){return s||(i.audio||i.video?(e._localMediaStreamLocallyGenerated=!0,navigator.mediaDevices.getUserMedia(i).catch(function(t){if(e._status===I.STATUS_TERMINATED)throw new Error("terminated");throw n.reply(480),e._failed("local",null,_.causes.USER_DENIED_MEDIA_ACCESS),R.warn('emit "getusermediafailed" [error:%o]',t),e.emit("getusermediafailed",t),new Error("getUserMedia() failed")})):void 0)}).then(function(t){if(e._status===I.STATUS_TERMINATED)throw new Error("terminated");e._localMediaStream=t,t&&t.getTracks().forEach(function(n){e._connection.addTrack(n,t)})}).then(function(){if(!e._late_sdp){var t={originator:"remote",type:"offer",sdp:n.body};R.debug('emit "sdp"'),e.emit("sdp",t);var r=new RTCSessionDescription({type:"offer",sdp:t.sdp});return e._connectionPromiseQueue=e._connectionPromiseQueue.then(function(){return e._connection.setRemoteDescription(r)}).catch(function(t){throw n.reply(488),e._failed("system",null,_.causes.WEBRTC_ERROR),R.warn('emit "peerconnection:setremotedescriptionfailed" [error:%o]',t),e.emit("peerconnection:setremotedescriptionfailed",t),new Error("peerconnection.setRemoteDescription() failed")}),e._connectionPromiseQueue}}).then(function(){if(e._status===I.STATUS_TERMINATED)throw new Error("terminated");return e._connecting(n),e._late_sdp?e._createLocalDescription("offer",e._rtcOfferConstraints).catch(function(){throw n.reply(500),new Error("_createLocalDescription() failed")}):e._createLocalDescription("answer",a).catch(function(){throw n.reply(500),new Error("_createLocalDescription() failed")})}).then(function(t){if(e._status===I.STATUS_TERMINATED)throw new Error("terminated");e._handleSessionTimersInIncomingRequest(n,r),n.reply(200,null,r,t,function(){e._status=I.STATUS_WAITING_FOR_ACK,e._setInvite2xxTimer(n,t),e._setACKTimer(),e._accepted("local")},function(){e._failed("system",null,_.causes.CONNECTION_ERROR)})}).catch(function(t){e._status!==I.STATUS_TERMINATED&&R.warn(t)})}else n.reply(500,"Error creating dialog")}},{key:"terminate",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};R.debug("terminate()");var n,r=t.cause||_.causes.BYE,o=v.cloneArray(t.extraHeaders),i=t.body,s=t.status_code,l=t.reason_phrase;if(this._status===I.STATUS_TERMINATED)throw new p.InvalidStateError(this._status);switch(this._status){case I.STATUS_NULL:case I.STATUS_INVITE_SENT:case I.STATUS_1XX_RECEIVED:if(R.debug("canceling session"),s&&(s<200||s>=700))throw new TypeError("Invalid status_code: ".concat(s));s&&(l=l||_.REASON_PHRASE[s]||"",n="SIP ;cause=".concat(s,' ;text="').concat(l,'"')),this._status===I.STATUS_NULL||this._status===I.STATUS_INVITE_SENT?(this._is_canceled=!0,this._cancel_reason=n):this._status===I.STATUS_1XX_RECEIVED&&this._request.cancel(n),this._status=I.STATUS_CANCELED,this._failed("local",null,_.causes.CANCELED);break;case I.STATUS_WAITING_FOR_ANSWER:case I.STATUS_ANSWERED:if(R.debug("rejecting session"),(s=s||480)<300||s>=700)throw new TypeError("Invalid status_code: ".concat(s));this._request.reply(s,l,o,i),this._failed("local",null,_.causes.REJECTED);break;case I.STATUS_WAITING_FOR_ACK:case I.STATUS_CONFIRMED:if(R.debug("terminating session"),l=t.reason_phrase||_.REASON_PHRASE[s]||"",s&&(s<200||s>=700))throw new TypeError("Invalid status_code: ".concat(s));if(s&&o.push("Reason: SIP ;cause=".concat(s,'; text="').concat(l,'"')),this._status===I.STATUS_WAITING_FOR_ACK&&"incoming"===this._direction&&this._request.server_transaction.state!==m.C.STATUS_TERMINATED){var u=this._dialog;this.receiveRequest=function(t){t.method===_.ACK&&(e.sendRequest(_.BYE,{extraHeaders:o,body:i}),u.terminate())},this._request.server_transaction.on("stateChanged",function(){e._request.server_transaction.state===m.C.STATUS_TERMINATED&&(e.sendRequest(_.BYE,{extraHeaders:o,body:i}),u.terminate())}),this._ended("local",null,r),this._dialog=u,this._ua.newDialog(u)}else this.sendRequest(_.BYE,{extraHeaders:o,body:i}),this._ended("local",null,r)}}},{key:"sendDTMF",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};R.debug("sendDTMF() | tones: %s",e);var n=0,r=t.duration||null,o=t.interToneGap||null,i=t.transportType||_.DTMF_TRANSPORT.INFO;if(void 0===e)throw new TypeError("Not enough arguments");if(this._status!==I.STATUS_CONFIRMED&&this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_1XX_RECEIVED)throw new p.InvalidStateError(this._status);if(i!==_.DTMF_TRANSPORT.INFO&&i!==_.DTMF_TRANSPORT.RFC2833)throw new TypeError("invalid transportType: ".concat(i));if("number"==typeof e&&(e=e.toString()),!e||"string"!=typeof e||!e.match(/^[0-9A-DR#*,]+$/i))throw new TypeError("Invalid tones: ".concat(e));if(r&&!v.isDecimal(r))throw new TypeError("Invalid tone duration: ".concat(r));if(r?r<S.C.MIN_DURATION?(R.debug('"duration" value is lower than the minimum allowed, setting it to '.concat(S.C.MIN_DURATION," milliseconds")),r=S.C.MIN_DURATION):r>S.C.MAX_DURATION?(R.debug('"duration" value is greater than the maximum allowed, setting it to '.concat(S.C.MAX_DURATION," milliseconds")),r=S.C.MAX_DURATION):r=Math.abs(r):r=S.C.DEFAULT_DURATION,t.duration=r,o&&!v.isDecimal(o))throw new TypeError("Invalid interToneGap: ".concat(o));if(o?o<S.C.MIN_INTER_TONE_GAP?(R.debug('"interToneGap" value is lower than the minimum allowed, setting it to '.concat(S.C.MIN_INTER_TONE_GAP," milliseconds")),o=S.C.MIN_INTER_TONE_GAP):o=Math.abs(o):o=S.C.DEFAULT_INTER_TONE_GAP,i!==_.DTMF_TRANSPORT.RFC2833)this._tones?this._tones+=e:(this._tones=e,function e(){var i=this;var s;if(this._status===I.STATUS_TERMINATED||!this._tones||n>=this._tones.length)return void(this._tones=null);var l=this._tones[n];n+=1;if(","===l)s=2e3;else{var u=new S(this);t.eventHandlers={onFailed:function(){i._tones=null}},u.send(l,t),s=r+o}setTimeout(e.bind(this),s)}.call(this));else{var s=this._getDTMFRTPSender();s&&(e=s.toneBuffer+e,s.insertDTMF(e,r,o))}}},{key:"sendInfo",value:function(e,t){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};if(R.debug("sendInfo()"),this._status!==I.STATUS_CONFIRMED&&this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_1XX_RECEIVED)throw new p.InvalidStateError(this._status);new C(this).send(e,t,n)}},{key:"mute",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{audio:!0,video:!1};R.debug("mute()");var t=!1,n=!1;!1===this._audioMuted&&e.audio&&(t=!0,this._audioMuted=!0,this._toggleMuteAudio(!0)),!1===this._videoMuted&&e.video&&(n=!0,this._videoMuted=!0,this._toggleMuteVideo(!0)),!0!==t&&!0!==n||this._onmute({audio:t,video:n})}},{key:"unmute",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{audio:!0,video:!0};R.debug("unmute()");var t=!1,n=!1;!0===this._audioMuted&&e.audio&&(t=!0,this._audioMuted=!1,!1===this._localHold&&this._toggleMuteAudio(!1)),!0===this._videoMuted&&e.video&&(n=!0,this._videoMuted=!1,!1===this._localHold&&this._toggleMuteVideo(!1)),!0!==t&&!0!==n||this._onunmute({audio:t,video:n})}},{key:"hold",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},n=arguments.length>1?arguments[1]:void 0;if(R.debug("hold()"),this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_CONFIRMED)return!1;if(!0===this._localHold)return!1;if(!this._isReadyToReOffer())return!1;this._localHold=!0,this._onhold("local");var r={succeeded:function(){n&&n()},failed:function(){e.terminate({cause:_.causes.WEBRTC_ERROR,status_code:500,reason_phrase:"Hold Failed"})}};return t.useUpdate?this._sendUpdate({sdpOffer:!0,eventHandlers:r,extraHeaders:t.extraHeaders}):this._sendReinvite({eventHandlers:r,extraHeaders:t.extraHeaders}),!0}},{key:"unhold",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},n=arguments.length>1?arguments[1]:void 0;if(R.debug("unhold()"),this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_CONFIRMED)return!1;if(!1===this._localHold)return!1;if(!this._isReadyToReOffer())return!1;this._localHold=!1,this._onunhold("local");var r={succeeded:function(){n&&n()},failed:function(){e.terminate({cause:_.causes.WEBRTC_ERROR,status_code:500,reason_phrase:"Unhold Failed"})}};return t.useUpdate?this._sendUpdate({sdpOffer:!0,eventHandlers:r,extraHeaders:t.extraHeaders}):this._sendReinvite({eventHandlers:r,extraHeaders:t.extraHeaders}),!0}},{key:"renegotiate",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},n=arguments.length>1?arguments[1]:void 0;R.debug("renegotiate()");var r=t.rtcOfferConstraints||null;if(this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_CONFIRMED)return!1;if(!this._isReadyToReOffer())return!1;var o={succeeded:function(){n&&n()},failed:function(){e.terminate({cause:_.causes.WEBRTC_ERROR,status_code:500,reason_phrase:"Media Renegotiation Failed"})}};return this._setLocalMediaStatus(),t.useUpdate?this._sendUpdate({sdpOffer:!0,eventHandlers:o,rtcOfferConstraints:r,extraHeaders:t.extraHeaders}):this._sendReinvite({eventHandlers:o,rtcOfferConstraints:r,extraHeaders:t.extraHeaders}),!0}},{key:"refer",value:function(e,t){var n=this;R.debug("refer()");var r=e;if(this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_CONFIRMED)return!1;if(!(e=this._ua.normalizeTarget(e)))throw new TypeError("Invalid target: ".concat(r));var o=new A(this);o.sendRefer(e,t);var i=o.id;return this._referSubscribers[i]=o,o.on("requestFailed",function(){delete n._referSubscribers[i]}),o.on("accepted",function(){delete n._referSubscribers[i]}),o.on("failed",function(){delete n._referSubscribers[i]}),o}},{key:"sendRequest",value:function(e,t){return R.debug("sendRequest()"),this._dialog.sendRequest(e,t)}},{key:"receiveRequest",value:function(e){var t=this;if(R.debug("receiveRequest()"),e.method===_.CANCEL)this._status!==I.STATUS_WAITING_FOR_ANSWER&&this._status!==I.STATUS_ANSWERED||(this._status=I.STATUS_CANCELED,this._request.reply(487),this._failed("remote",e,_.causes.CANCELED));else switch(e.method){case _.ACK:if(this._status!==I.STATUS_WAITING_FOR_ACK)return;if(this._status=I.STATUS_CONFIRMED,clearTimeout(this._timers.ackTimer),clearTimeout(this._timers.invite2xxTimer),this._late_sdp){if(!e.body){this.terminate({cause:_.causes.MISSING_SDP,status_code:400});break}var n={originator:"remote",type:"answer",sdp:e.body};R.debug('emit "sdp"'),this.emit("sdp",n);var r=new RTCSessionDescription({type:"answer",sdp:n.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return t._connection.setRemoteDescription(r)}).then(function(){t._is_confirmed||t._confirmed("remote",e)}).catch(function(e){t.terminate({cause:_.causes.BAD_MEDIA_DESCRIPTION,status_code:488}),R.warn('emit "peerconnection:setremotedescriptionfailed" [error:%o]',e),t.emit("peerconnection:setremotedescriptionfailed",e)})}else this._is_confirmed||this._confirmed("remote",e);break;case _.BYE:this._status===I.STATUS_CONFIRMED||this._status===I.STATUS_WAITING_FOR_ACK?(e.reply(200),this._ended("remote",e,_.causes.BYE)):this._status===I.STATUS_INVITE_RECEIVED||this._status===I.STATUS_WAITING_FOR_ANSWER?(e.reply(200),this._request.reply(487,"BYE Received"),this._ended("remote",e,_.causes.BYE)):e.reply(403,"Wrong Status");break;case _.INVITE:this._status===I.STATUS_CONFIRMED?e.hasHeader("replaces")?this._receiveReplaces(e):this._receiveReinvite(e):e.reply(403,"Wrong Status");break;case _.INFO:if(this._status===I.STATUS_1XX_RECEIVED||this._status===I.STATUS_WAITING_FOR_ANSWER||this._status===I.STATUS_ANSWERED||this._status===I.STATUS_WAITING_FOR_ACK||this._status===I.STATUS_CONFIRMED){var o=e.hasHeader("Content-Type")?e.getHeader("Content-Type").toLowerCase():void 0;o&&o.match(/^application\/dtmf-relay/i)?new S(this).init_incoming(e):void 0!==o?new C(this).init_incoming(e):e.reply(415)}else e.reply(403,"Wrong Status");break;case _.UPDATE:this._status===I.STATUS_CONFIRMED?this._receiveUpdate(e):e.reply(403,"Wrong Status");break;case _.REFER:this._status===I.STATUS_CONFIRMED?this._receiveRefer(e):e.reply(403,"Wrong Status");break;case _.NOTIFY:this._status===I.STATUS_CONFIRMED?this._receiveNotify(e):e.reply(403,"Wrong Status");break;default:e.reply(501)}}},{key:"onTransportError",value:function(){R.warn("onTransportError()"),this._status!==I.STATUS_TERMINATED&&this.terminate({status_code:500,reason_phrase:_.causes.CONNECTION_ERROR,cause:_.causes.CONNECTION_ERROR})}},{key:"onRequestTimeout",value:function(){R.warn("onRequestTimeout()"),this._status!==I.STATUS_TERMINATED&&this.terminate({status_code:408,reason_phrase:_.causes.REQUEST_TIMEOUT,cause:_.causes.REQUEST_TIMEOUT})}},{key:"onDialogError",value:function(){R.warn("onDialogError()"),this._status!==I.STATUS_TERMINATED&&this.terminate({status_code:500,reason_phrase:_.causes.DIALOG_ERROR,cause:_.causes.DIALOG_ERROR})}},{key:"newDTMF",value:function(e){R.debug("newDTMF()"),this.emit("newDTMF",e)}},{key:"newInfo",value:function(e){R.debug("newInfo()"),this.emit("newInfo",e)}},{key:"_isReadyToReOffer",value:function(){return this._rtcReady?this._dialog?!0!==this._dialog.uac_pending_reply&&!0!==this._dialog.uas_pending_reply||(R.debug("_isReadyToReOffer() | there is another INVITE/UPDATE transaction in progress"),!1):(R.debug("_isReadyToReOffer() | session not established yet"),!1):(R.debug("_isReadyToReOffer() | internal WebRTC status not ready"),!1)}},{key:"_close",value:function(){if(R.debug("close()"),this._localMediaStream&&this._localMediaStreamLocallyGenerated&&(R.debug("close() | closing local MediaStream"),v.closeMediaStream(this._localMediaStream)),this._status!==I.STATUS_TERMINATED){if(this._status=I.STATUS_TERMINATED,this._connection)try{this._connection.close()}catch(e){R.warn("close() | error closing the RTCPeerConnection: %o",e)}for(var e in this._timers)Object.prototype.hasOwnProperty.call(this._timers,e)&&clearTimeout(this._timers[e]);for(var t in clearTimeout(this._sessionTimers.timer),this._dialog&&(this._dialog.terminate(),delete this._dialog),this._earlyDialogs)Object.prototype.hasOwnProperty.call(this._earlyDialogs,t)&&(this._earlyDialogs[t].terminate(),delete this._earlyDialogs[t]);for(var n in this._referSubscribers)Object.prototype.hasOwnProperty.call(this._referSubscribers,n)&&delete this._referSubscribers[n];this._ua.destroyRTCSession(this)}}},{key:"_setInvite2xxTimer",value:function(e,t){var n=g.T1;this._timers.invite2xxTimer=setTimeout(function r(){this._status===I.STATUS_WAITING_FOR_ACK&&(e.reply(200,null,["Contact: ".concat(this._contact)],t),n<g.T2&&(n*=2)>g.T2&&(n=g.T2),this._timers.invite2xxTimer=setTimeout(r.bind(this),n))}.bind(this),n)}},{key:"_setACKTimer",value:function(){var e=this;this._timers.ackTimer=setTimeout(function(){e._status===I.STATUS_WAITING_FOR_ACK&&(R.debug("no ACK received, terminating the session"),clearTimeout(e._timers.invite2xxTimer),e.sendRequest(_.BYE),e._ended("remote",null,_.causes.NO_ACK))},g.TIMER_H)}},{key:"_createRTCConnection",value:function(e,t){var n=this;this._connection=new RTCPeerConnection(e,t),this._connection.addEventListener("iceconnectionstatechange",function(){"failed"===n._connection.iceConnectionState&&n.terminate({cause:_.causes.RTP_TIMEOUT,status_code:408,reason_phrase:_.causes.RTP_TIMEOUT})}),R.debug('emit "peerconnection"'),this.emit("peerconnection",{peerconnection:this._connection})}},{key:"_createLocalDescription",value:function(e,t){var n=this;if(R.debug("createLocalDescription()"),"offer"!==e&&"answer"!==e)throw new Error('createLocalDescription() | invalid type "'.concat(e,'"'));var r=this._connection;return this._rtcReady=!1,Promise.resolve().then(function(){return"offer"===e?r.createOffer(t).catch(function(e){return R.warn('emit "peerconnection:createofferfailed" [error:%o]',e),n.emit("peerconnection:createofferfailed",e),Promise.reject(e)}):r.createAnswer(t).catch(function(e){return R.warn('emit "peerconnection:createanswerfailed" [error:%o]',e),n.emit("peerconnection:createanswerfailed",e),Promise.reject(e)})}).then(function(e){return r.setLocalDescription(e).catch(function(e){return n._rtcReady=!0,R.warn('emit "peerconnection:setlocaldescriptionfailed" [error:%o]',e),n.emit("peerconnection:setlocaldescriptionfailed",e),Promise.reject(e)})}).then(function(){var o=t&&t.iceRestart;if("complete"===r.iceGatheringState&&!o||"gathering"===r.iceGatheringState&&n._iceReady){n._rtcReady=!0;var i={originator:"local",type:e,sdp:r.localDescription.sdp};return R.debug('emit "sdp"'),n.emit("sdp",i),Promise.resolve(i.sdp)}return new Promise(function(t){var o,i,s=!1;n._iceReady=!1;var l=function(){if(!s){r.removeEventListener("icecandidate",o),r.removeEventListener("icegatheringstatechange",i),s=!0,n._rtcReady=!0,n._iceReady=!0;var l={originator:"local",type:e,sdp:r.localDescription.sdp};R.debug('emit "sdp"'),n.emit("sdp",l),t(l.sdp)}};r.addEventListener("icecandidate",o=function(e){var t=e.candidate;t?n.emit("icecandidate",{candidate:t,ready:l}):l()}),r.addEventListener("icegatheringstatechange",i=function(){"complete"===r.iceGatheringState&&l()})})})}},{key:"_createDialog",value:function(e,t,n){var r="UAS"===t?e.to_tag:e.from_tag,o="UAS"===t?e.from_tag:e.to_tag,i=e.call_id+r+o,s=this._earlyDialogs[i];if(n)return!!s||((s=new T(this,e,t,T.C.STATUS_EARLY)).error?(R.debug(s.error),this._failed("remote",e,_.causes.INTERNAL_ERROR),!1):(this._earlyDialogs[i]=s,!0));if(this._from_tag=e.from_tag,this._to_tag=e.to_tag,s)return s.update(e,t),this._dialog=s,delete this._earlyDialogs[i],!0;var l=new T(this,e,t);return l.error?(R.debug(l.error),this._failed("remote",e,_.causes.INTERNAL_ERROR),!1):(this._dialog=l,!0)}},{key:"_receiveReinvite",value:function(e){var t=this;R.debug("receiveReinvite()");var n=e.hasHeader("Content-Type")?e.getHeader("Content-Type").toLowerCase():void 0,r={request:e,callback:void 0,reject:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};o=!0;var n=t.status_code||403,r=t.reason_phrase||"",i=v.cloneArray(t.extraHeaders);if(this._status!==I.STATUS_CONFIRMED)return!1;if(n<300||n>=700)throw new TypeError("Invalid status_code: ".concat(n));e.reply(n,r,i)}.bind(this)},o=!1;if(this.emit("reinvite",r),!o){if(this._late_sdp=!1,!e.body)return this._late_sdp=!0,this._remoteHold&&(this._remoteHold=!1,this._onunhold("remote")),void(this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return t._createLocalDescription("offer",t._rtcOfferConstraints)}).then(function(e){i.call(t,e)}).catch(function(){e.reply(500)}));if("application/sdp"!==n)return R.debug("invalid Content-Type"),void e.reply(415);this._processInDialogSdpOffer(e).then(function(e){t._status!==I.STATUS_TERMINATED&&i.call(t,e)}).catch(function(e){R.warn(e)})}function i(t){var n=this,o=["Contact: ".concat(this._contact)];this._handleSessionTimersInIncomingRequest(e,o),this._late_sdp&&(t=this._mangleOffer(t)),e.reply(200,null,o,t,function(){n._status=I.STATUS_WAITING_FOR_ACK,n._setInvite2xxTimer(e,t),n._setACKTimer()}),"function"==typeof r.callback&&r.callback()}}},{key:"_receiveUpdate",value:function(e){var t=this;R.debug("receiveUpdate()");var n=e.hasHeader("Content-Type")?e.getHeader("Content-Type").toLowerCase():void 0,r={request:e,callback:void 0,reject:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};o=!0;var n=t.status_code||403,r=t.reason_phrase||"",i=v.cloneArray(t.extraHeaders);if(this._status!==I.STATUS_CONFIRMED)return!1;if(n<300||n>=700)throw new TypeError("Invalid status_code: ".concat(n));e.reply(n,r,i)}.bind(this)},o=!1;if(this.emit("update",r),!o)if(e.body){if("application/sdp"!==n)return R.debug("invalid Content-Type"),void e.reply(415);this._processInDialogSdpOffer(e).then(function(e){t._status!==I.STATUS_TERMINATED&&i.call(t,e)}).catch(function(e){R.warn(e)})}else i.call(this,null);function i(t){var n=["Contact: ".concat(this._contact)];this._handleSessionTimersInIncomingRequest(e,n),e.reply(200,null,n,t),"function"==typeof r.callback&&r.callback()}}},{key:"_processInDialogSdpOffer",value:function(e){var t=this;R.debug("_processInDialogSdpOffer()");var n,r=e.parseSDP(),i=!1,s=o(r.media);try{for(s.s();!(n=s.n()).done;){var l=n.value;if(-1!==O.indexOf(l.type)){var u=l.direction||r.direction||"sendrecv";if("sendonly"!==u&&"inactive"!==u){i=!1;break}i=!0}}}catch(e){s.e(e)}finally{s.f()}var a={originator:"remote",type:"offer",sdp:e.body};R.debug('emit "sdp"'),this.emit("sdp",a);var c=new RTCSessionDescription({type:"offer",sdp:a.sdp});return this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){if(t._status===I.STATUS_TERMINATED)throw new Error("terminated");return t._connection.setRemoteDescription(c).catch(function(n){throw e.reply(488),R.warn('emit "peerconnection:setremotedescriptionfailed" [error:%o]',n),t.emit("peerconnection:setremotedescriptionfailed",n),n})}).then(function(){if(t._status===I.STATUS_TERMINATED)throw new Error("terminated");!0===t._remoteHold&&!1===i?(t._remoteHold=!1,t._onunhold("remote")):!1===t._remoteHold&&!0===i&&(t._remoteHold=!0,t._onhold("remote"))}).then(function(){if(t._status===I.STATUS_TERMINATED)throw new Error("terminated");return t._createLocalDescription("answer",t._rtcAnswerConstraints).catch(function(t){throw e.reply(500),R.warn('emit "peerconnection:createtelocaldescriptionfailed" [error:%o]',t),t})}).catch(function(e){R.warn("_processInDialogSdpOffer() failed [error: %o]",e)}),this._connectionPromiseQueue}},{key:"_receiveRefer",value:function(e){var n=this;if(R.debug("receiveRefer()"),!e.refer_to)return R.debug("no Refer-To header field present in REFER"),void e.reply(400);if(e.refer_to.uri.scheme!==_.SIP)return R.debug("Refer-To header field points to a non-SIP URI scheme"),void e.reply(416);e.reply(202);var r=new E(this,e.cseq);R.debug('emit "refer"'),this.emit("refer",{request:e,accept:function(o,i){(function(n){var o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(n="function"==typeof n?n:null,this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_CONFIRMED)return!1;var i=new t(this._ua);if(i.on("progress",function(e){var t=e.response;r.notify(t.status_code,t.reason_phrase)}),i.on("accepted",function(e){var t=e.response;r.notify(t.status_code,t.reason_phrase)}),i.on("_failed",function(e){var t=e.message,n=e.cause;t?r.notify(t.status_code,t.reason_phrase):r.notify(487,n)}),e.refer_to.uri.hasHeader("replaces")){var s=decodeURIComponent(e.refer_to.uri.getHeader("replaces"));o.extraHeaders=v.cloneArray(o.extraHeaders),o.extraHeaders.push("Replaces: ".concat(s))}i.connect(e.refer_to.uri.toAor(),o,n)}).call(n,o,i)},reject:function(){(function(){r.notify(603)}).call(n)}})}},{key:"_receiveNotify",value:function(e){switch(R.debug("receiveNotify()"),e.event||e.reply(400),e.event.event){case"refer":var t,n;if(e.event.params&&e.event.params.id)t=e.event.params.id,n=this._referSubscribers[t];else{if(1!==Object.keys(this._referSubscribers).length)return void e.reply(400,"Missing event id parameter");n=this._referSubscribers[Object.keys(this._referSubscribers)[0]]}if(!n)return void e.reply(481,"Subscription does not exist");n.receiveNotify(e),e.reply(200);break;default:e.reply(489)}}},{key:"_receiveReplaces",value:function(e){var n=this;R.debug("receiveReplaces()"),this.emit("replaces",{request:e,accept:function(r){(function(n){var r=this;if(this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_CONFIRMED)return!1;var o=new t(this._ua);o.on("confirmed",function(){r.terminate()}),o.init_incoming(e,n)}).call(n,r)},reject:function(){(function(){R.debug("Replaced INVITE rejected by the user"),e.reply(486)}).call(n)}})}},{key:"_sendInitialRequest",value:function(e,t,n){var r=this,o=new b(this._ua,this._request,{onRequestTimeout:function(){r.onRequestTimeout()},onTransportError:function(){r.onTransportError()},onAuthenticated:function(e){r._request=e},onReceiveResponse:function(e){r._receiveInviteResponse(e)}});Promise.resolve().then(function(){return n||(e.audio||e.video?(r._localMediaStreamLocallyGenerated=!0,navigator.mediaDevices.getUserMedia(e).catch(function(e){if(r._status===I.STATUS_TERMINATED)throw new Error("terminated");throw r._failed("local",null,_.causes.USER_DENIED_MEDIA_ACCESS),R.warn('emit "getusermediafailed" [error:%o]',e),r.emit("getusermediafailed",e),e})):void 0)}).then(function(e){if(r._status===I.STATUS_TERMINATED)throw new Error("terminated");return r._localMediaStream=e,e&&e.getTracks().forEach(function(t){r._connection.addTrack(t,e)}),r._connecting(r._request),r._createLocalDescription("offer",t).catch(function(e){throw r._failed("local",null,_.causes.WEBRTC_ERROR),e})}).then(function(e){if(r._is_canceled||r._status===I.STATUS_TERMINATED)throw new Error("terminated");r._request.body=e,r._status=I.STATUS_INVITE_SENT,R.debug('emit "sending" [request:%o]',r._request),r.emit("sending",{request:r._request}),o.send()}).catch(function(e){r._status!==I.STATUS_TERMINATED&&R.warn(e)})}},{key:"_getDTMFRTPSender",value:function(){var e=this._connection.getSenders().find(function(e){return e.track&&"audio"===e.track.kind});if(e&&e.dtmf)return e.dtmf;R.warn("sendDTMF() | no local audio track to send DTMF with")}},{key:"_receiveInviteResponse",value:function(e){var t=this;if(R.debug("receiveInviteResponse()"),this._dialog&&e.status_code>=200&&e.status_code<=299){if(this._dialog.id.call_id===e.call_id&&this._dialog.id.local_tag===e.from_tag&&this._dialog.id.remote_tag===e.to_tag)return void this.sendRequest(_.ACK);var n=new T(this,e,"UAC");return void 0!==n.error?void R.debug(n.error):(this.sendRequest(_.ACK),void this.sendRequest(_.BYE))}if(this._is_canceled)e.status_code>=100&&e.status_code<200?this._request.cancel(this._cancel_reason):e.status_code>=200&&e.status_code<299&&this._acceptAndTerminate(e);else if(this._status===I.STATUS_INVITE_SENT||this._status===I.STATUS_1XX_RECEIVED)switch(!0){case/^100$/.test(e.status_code):this._status=I.STATUS_1XX_RECEIVED;break;case/^1[0-9]{2}$/.test(e.status_code):if(!e.to_tag){R.debug("1xx response received without to tag");break}if(e.hasHeader("contact")&&!this._createDialog(e,"UAC",!0))break;if(this._status=I.STATUS_1XX_RECEIVED,!e.body){this._progress("remote",e);break}var r={originator:"remote",type:"answer",sdp:e.body};R.debug('emit "sdp"'),this.emit("sdp",r);var o=new RTCSessionDescription({type:"answer",sdp:r.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return t._connection.setRemoteDescription(o)}).then(function(){return t._progress("remote",e)}).catch(function(e){R.warn('emit "peerconnection:setremotedescriptionfailed" [error:%o]',e),t.emit("peerconnection:setremotedescriptionfailed",e)});break;case/^2[0-9]{2}$/.test(e.status_code):if(this._status=I.STATUS_CONFIRMED,!e.body){this._acceptAndTerminate(e,400,_.causes.MISSING_SDP),this._failed("remote",e,_.causes.BAD_MEDIA_DESCRIPTION);break}if(!this._createDialog(e,"UAC"))break;var i={originator:"remote",type:"answer",sdp:e.body};R.debug('emit "sdp"'),this.emit("sdp",i);var s=new RTCSessionDescription({type:"answer",sdp:i.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){if("stable"===t._connection.signalingState)return t._connection.createOffer(t._rtcOfferConstraints).then(function(e){return t._connection.setLocalDescription(e)}).catch(function(n){t._acceptAndTerminate(e,500,n.toString()),t._failed("local",e,_.causes.WEBRTC_ERROR)})}).then(function(){t._connection.setRemoteDescription(s).then(function(){t._handleSessionTimersInIncomingResponse(e),t._accepted("remote",e),t.sendRequest(_.ACK),t._confirmed("local",null)}).catch(function(n){t._acceptAndTerminate(e,488,"Not Acceptable Here"),t._failed("remote",e,_.causes.BAD_MEDIA_DESCRIPTION),R.warn('emit "peerconnection:setremotedescriptionfailed" [error:%o]',n),t.emit("peerconnection:setremotedescriptionfailed",n)})});break;default:var l=v.sipErrorCause(e.status_code);this._failed("remote",e,l)}}},{key:"_sendReinvite",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};R.debug("sendReinvite()");var n=v.cloneArray(t.extraHeaders),r=v.cloneObject(t.eventHandlers),o=t.rtcOfferConstraints||this._rtcOfferConstraints||null,i=!1;function s(e){r.failed&&r.failed(e)}n.push("Contact: ".concat(this._contact)),n.push("Content-Type: application/sdp"),this._sessionTimers.running&&n.push("Session-Expires: ".concat(this._sessionTimers.currentExpires,";refresher=").concat(this._sessionTimers.refresher?"uac":"uas")),this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return e._createLocalDescription("offer",o)}).then(function(t){var o={originator:"local",type:"offer",sdp:t=e._mangleOffer(t)};R.debug('emit "sdp"'),e.emit("sdp",o),e.sendRequest(_.INVITE,{extraHeaders:n,body:t,eventHandlers:{onSuccessResponse:function(t){(function(e){var t=this;if(this._status===I.STATUS_TERMINATED)return;if(this.sendRequest(_.ACK),i)return;if(this._handleSessionTimersInIncomingResponse(e),!e.body)return void s.call(this);if(!e.hasHeader("Content-Type")||"application/sdp"!==e.getHeader("Content-Type").toLowerCase())return void s.call(this);var n={originator:"remote",type:"answer",sdp:e.body};R.debug('emit "sdp"'),this.emit("sdp",n);var o=new RTCSessionDescription({type:"answer",sdp:n.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return t._connection.setRemoteDescription(o)}).then(function(){r.succeeded&&r.succeeded(e)}).catch(function(e){s.call(t),R.warn('emit "peerconnection:setremotedescriptionfailed" [error:%o]',e),t.emit("peerconnection:setremotedescriptionfailed",e)})}).call(e,t),i=!0},onErrorResponse:function(t){s.call(e,t)},onTransportError:function(){e.onTransportError()},onRequestTimeout:function(){e.onRequestTimeout()},onDialogError:function(){e.onDialogError()}}})}).catch(function(){s()})}},{key:"_sendUpdate",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};R.debug("sendUpdate()");var n=v.cloneArray(t.extraHeaders),r=v.cloneObject(t.eventHandlers),o=t.rtcOfferConstraints||this._rtcOfferConstraints||null,i=t.sdpOffer||!1,s=!1;function l(e){var t=this;if(this._status!==I.STATUS_TERMINATED&&!s)if(this._handleSessionTimersInIncomingResponse(e),i){if(!e.body)return void u.call(this);if(!e.hasHeader("Content-Type")||"application/sdp"!==e.getHeader("Content-Type").toLowerCase())return void u.call(this);var n={originator:"remote",type:"answer",sdp:e.body};R.debug('emit "sdp"'),this.emit("sdp",n);var o=new RTCSessionDescription({type:"answer",sdp:n.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return t._connection.setRemoteDescription(o)}).then(function(){r.succeeded&&r.succeeded(e)}).catch(function(e){u.call(t),R.warn('emit "peerconnection:setremotedescriptionfailed" [error:%o]',e),t.emit("peerconnection:setremotedescriptionfailed",e)})}else r.succeeded&&r.succeeded(e)}function u(e){r.failed&&r.failed(e)}n.push("Contact: ".concat(this._contact)),this._sessionTimers.running&&n.push("Session-Expires: ".concat(this._sessionTimers.currentExpires,";refresher=").concat(this._sessionTimers.refresher?"uac":"uas")),i?(n.push("Content-Type: application/sdp"),this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return e._createLocalDescription("offer",o)}).then(function(t){var r={originator:"local",type:"offer",sdp:t=e._mangleOffer(t)};R.debug('emit "sdp"'),e.emit("sdp",r),e.sendRequest(_.UPDATE,{extraHeaders:n,body:t,eventHandlers:{onSuccessResponse:function(t){l.call(e,t),s=!0},onErrorResponse:function(t){u.call(e,t)},onTransportError:function(){e.onTransportError()},onRequestTimeout:function(){e.onRequestTimeout()},onDialogError:function(){e.onDialogError()}}})}).catch(function(){u.call(e)})):this.sendRequest(_.UPDATE,{extraHeaders:n,eventHandlers:{onSuccessResponse:function(t){l.call(e,t)},onErrorResponse:function(t){u.call(e,t)},onTransportError:function(){e.onTransportError()},onRequestTimeout:function(){e.onRequestTimeout()},onDialogError:function(){e.onDialogError()}}})}},{key:"_acceptAndTerminate",value:function(e,t,n){R.debug("acceptAndTerminate()");var r=[];t&&(n=n||_.REASON_PHRASE[t]||"",r.push("Reason: SIP ;cause=".concat(t,'; text="').concat(n,'"'))),(this._dialog||this._createDialog(e,"UAC"))&&(this.sendRequest(_.ACK),this.sendRequest(_.BYE,{extraHeaders:r})),this._status=I.STATUS_TERMINATED}},{key:"_mangleOffer",value:function(e){if(!this._localHold&&!this._remoteHold)return e;if(e=h.parse(e),this._localHold&&!this._remoteHold){R.debug("mangleOffer() | me on hold, mangling offer");var t,n=o(e.media);try{for(n.s();!(t=n.n()).done;){var r=t.value;-1!==O.indexOf(r.type)&&(r.direction?"sendrecv"===r.direction?r.direction="sendonly":"recvonly"===r.direction&&(r.direction="inactive"):r.direction="sendonly")}}catch(e){n.e(e)}finally{n.f()}}else if(this._localHold&&this._remoteHold){R.debug("mangleOffer() | both on hold, mangling offer");var i,s=o(e.media);try{for(s.s();!(i=s.n()).done;){var l=i.value;-1!==O.indexOf(l.type)&&(l.direction="inactive")}}catch(e){s.e(e)}finally{s.f()}}else if(this._remoteHold){R.debug("mangleOffer() | remote on hold, mangling offer");var u,a=o(e.media);try{for(a.s();!(u=a.n()).done;){var c=u.value;-1!==O.indexOf(c.type)&&(c.direction?"sendrecv"===c.direction?c.direction="recvonly":"recvonly"===c.direction&&(c.direction="inactive"):c.direction="recvonly")}}catch(e){a.e(e)}finally{a.f()}}return h.write(e)}},{key:"_setLocalMediaStatus",value:function(){var e=!0,t=!0;(this._localHold||this._remoteHold)&&(e=!1,t=!1),this._audioMuted&&(e=!1),this._videoMuted&&(t=!1),this._toggleMuteAudio(!e),this._toggleMuteVideo(!t)}},{key:"_handleSessionTimersInIncomingRequest",value:function(e,t){var n;this._sessionTimers.enabled&&(e.session_expires&&e.session_expires>=_.MIN_SESSION_EXPIRES?(this._sessionTimers.currentExpires=e.session_expires,n=e.session_expires_refresher||"uas"):(this._sessionTimers.currentExpires=this._sessionTimers.defaultExpires,n="uas"),t.push("Session-Expires: ".concat(this._sessionTimers.currentExpires,";refresher=").concat(n)),this._sessionTimers.refresher="uas"===n,this._runSessionTimer())}},{key:"_handleSessionTimersInIncomingResponse",value:function(e){var t;this._sessionTimers.enabled&&(e.session_expires&&e.session_expires>=_.MIN_SESSION_EXPIRES?(this._sessionTimers.currentExpires=e.session_expires,t=e.session_expires_refresher||"uac"):(this._sessionTimers.currentExpires=this._sessionTimers.defaultExpires,t="uac"),this._sessionTimers.refresher="uac"===t,this._runSessionTimer())}},{key:"_runSessionTimer",value:function(){var e=this,t=this._sessionTimers.currentExpires;this._sessionTimers.running=!0,clearTimeout(this._sessionTimers.timer),this._sessionTimers.refresher?this._sessionTimers.timer=setTimeout(function(){e._status!==I.STATUS_TERMINATED&&e._isReadyToReOffer()&&(R.debug("runSessionTimer() | sending session refresh request"),e._sessionTimers.refreshMethod===_.UPDATE?e._sendUpdate():e._sendReinvite())},500*t):this._sessionTimers.timer=setTimeout(function(){e._status!==I.STATUS_TERMINATED&&(R.warn("runSessionTimer() | timer expired, terminating the session"),e.terminate({cause:_.causes.REQUEST_TIMEOUT,status_code:408,reason_phrase:"Session Timer Expired"}))},1100*t)}},{key:"_toggleMuteAudio",value:function(e){var t,n=o(this._connection.getSenders().filter(function(e){return e.track&&"audio"===e.track.kind}));try{for(n.s();!(t=n.n()).done;){t.value.track.enabled=!e}}catch(e){n.e(e)}finally{n.f()}}},{key:"_toggleMuteVideo",value:function(e){var t,n=o(this._connection.getSenders().filter(function(e){return 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o="Signal=".concat(this._tone,"\r\n");o+="Duration=".concat(this._duration),this._session.newDTMF({originator:"local",dtmf:this,request:this._request}),this._session.sendRequest(f.INFO,{extraHeaders:r,eventHandlers:{onSuccessResponse:function(e){t.emit("succeeded",{originator:"remote",response:e})},onErrorResponse:function(e){t.eventHandlers.onFailed&&t.eventHandlers.onFailed(),t.emit("failed",{originator:"remote",response:e})},onRequestTimeout:function(){t._session.onRequestTimeout()},onTransportError:function(){t._session.onTransportError()},onDialogError:function(){t._session.onDialogError()}},body:o})}},{key:"init_incoming",value:function(e){var t=/^(Signal\s*?=\s*?)([0-9A-D#*]{1})(\s)?.*/,n=/^(Duration\s?=\s?)([0-9]{1,4})(\s)?.*/;if(this._direction="incoming",this._request=e,e.reply(200),e.body){var r=e.body.split("\n");r.length>=1&&t.test(r[0])&&(this._tone=r[0].replace(t,"$2")),r.length>=2&&n.test(r[1])&&(this._duration=parseInt(r[1].replace(n,"$2"),10))}this._duration||(this._duration=p.DEFAULT_DURATION),this._tone?this._session.newDTMF({originator:"remote",dtmf:this,request:e}):_.debug("invalid INFO DTMF received, discarded")}}])&&o(n.prototype,r),i&&o(n,i),Object.defineProperty(n,"prototype",{writable:!1}),n;var n,r,i}(),t.exports.C=p},{"../Constants":2,"../Exceptions":6,"../Logger":9,"../Utils":28,events:31}],16:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function o(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,i(r.key),r)}}function i(e){var 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n=e[t];this._extraContactParams+=";".concat(t),n&&(this._extraContactParams+="=".concat(n))}}},{key:"register",value:function(){var e=this;if(this._registering)f.debug("Register request in progress...");else{var t=this._extraHeaders.slice();t.push("Contact: ".concat(this._contact,";expires=").concat(this._expires).concat(this._extraContactParams)),t.push("Expires: ".concat(this._expires));var n=l.newTag();this._ua.configuration.register_from_tag_trail&&("function"==typeof this._ua.configuration.register_from_tag_trail?n+=this._ua.configuration.register_from_tag_trail():n+=this._ua.configuration.register_from_tag_trail);var r=new a.OutgoingRequest(u.REGISTER,this._registrar,this._ua,{to_uri:this._to_uri,call_id:this._call_id,cseq:this._cseq+=1,from_tag:n},t),o=new c(this._ua,r,{onRequestTimeout:function(){e._registrationFailure(null,u.causes.REQUEST_TIMEOUT)},onTransportError:function(){e._registrationFailure(null,u.causes.CONNECTION_ERROR)},onAuthenticated:function(){e._cseq+=1},onReceiveResponse:function(t){if(t.cseq===e._cseq)switch(null!==e._registrationTimer&&(clearTimeout(e._registrationTimer),e._registrationTimer=null),!0){case/^1[0-9]{2}$/.test(t.status_code):break;case/^2[0-9]{2}$/.test(t.status_code):if(e._registering=!1,!t.hasHeader("Contact")){f.debug("no Contact header in response to REGISTER, response ignored");break}var n=t.headers.Contact.reduce(function(e,t){return e.concat(t.parsed)},[]),r=n.find(function(t){return e._sipInstance===t.getParam("+sip.instance")&&e._reg_id===parseInt(t.getParam("reg-id"))});if(r||(r=n.find(function(t){return t.uri.user===e._ua.contact.uri.user})),!r){f.debug("no Contact header pointing to us, response ignored");break}var o=r.getParam("expires");!o&&t.hasHeader("expires")&&(o=t.getHeader("expires")),o||(o=e._expires),(o=Number(o))<10&&(o=10);var i=o>64?1e3*o/2+Math.floor(1e3*(o/2-32)*Math.random()):1e3*o-5e3;e._registrationTimer=setTimeout(function(){e._registrationTimer=null,0===e._ua.listeners("registrationExpiring").length?e.register():e._ua.emit("registrationExpiring")},i),r.hasParam("temp-gruu")&&(e._ua.contact.temp_gruu=r.getParam("temp-gruu").replace(/"/g,"")),r.hasParam("pub-gruu")&&(e._ua.contact.pub_gruu=r.getParam("pub-gruu").replace(/"/g,"")),e._registered||(e._registered=!0,e._ua.registered({response:t}));break;case/^423$/.test(t.status_code):t.hasHeader("min-expires")?(e._expires=Number(t.getHeader("min-expires")),e._expires<10&&(e._expires=10),e._registering=!1,e.register()):(f.debug("423 response received for REGISTER without Min-Expires"),e._registrationFailure(t,u.causes.SIP_FAILURE_CODE));break;default:var s=l.sipErrorCause(t.status_code);e._registrationFailure(t,s)}}});this._registering=!0,o.send()}}},{key:"unregister",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};if(this._registered){this._registered=!1,null!==this._registrationTimer&&(clearTimeout(this._registrationTimer),this._registrationTimer=null);var n=this._extraHeaders.slice();t.all?n.push("Contact: *".concat(this._extraContactParams)):n.push("Contact: ".concat(this._contact,";expires=0").concat(this._extraContactParams)),n.push("Expires: 0");var r=new a.OutgoingRequest(u.REGISTER,this._registrar,this._ua,{to_uri:this._to_uri,call_id:this._call_id,cseq:this._cseq+=1},n);new c(this._ua,r,{onRequestTimeout:function(){e._unregistered(null,u.causes.REQUEST_TIMEOUT)},onTransportError:function(){e._unregistered(null,u.causes.CONNECTION_ERROR)},onAuthenticated:function(){e._cseq+=1},onReceiveResponse:function(t){switch(!0){case/^1[0-9]{2}$/.test(t.status_code):break;case/^2[0-9]{2}$/.test(t.status_code):e._unregistered(t);break;default:var n=l.sipErrorCause(t.status_code);e._unregistered(t,n)}}}).send()}else f.debug("already unregistered")}},{key:"close",value:function(){this._registered&&this.unregister()}},{key:"onTransportClosed",value:function(){this._registering=!1,null!==this._registrationTimer&&(clearTimeout(this._registrationTimer),this._registrationTimer=null),this._registered&&(this._registered=!1,this._ua.unregistered({}))}},{key:"_registrationFailure",value:function(e,t){this._registering=!1,this._ua.registrationFailed({response:e||null,cause:t}),this._registered&&(this._registered=!1,this._ua.unregistered({response:e||null,cause:t}))}},{key:"_unregistered",value:function(e,t){this._registering=!1,this._registered=!1,this._ua.unregistered({response:e||null,cause:t||null})}}])&&o(e.prototype,t),n&&o(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e;var e,t,n}()},{"./Constants":2,"./Logger":9,"./RequestSender":20,"./SIPMessage":21,"./Utils":28}],20:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function o(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,i(r.key),r)}}function i(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var o=n.call(e,t||"default");if("object"!=r(o))return o;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}var s=e("./Logger"),l=e("./Constants"),u=e("./DigestAuthentication"),a=e("./Transactions"),c=new s("RequestSender"),f={onRequestTimeout:function(){},onTransportError:function(){},onReceiveResponse:function(){},onAuthenticated:function(){}};t.exports=function(){return e=function e(t,n,r){for(var o in function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this._ua=t,this._eventHandlers=r,this._method=n.method,this._request=n,this._auth=null,this._challenged=!1,this._staled=!1,f)Object.prototype.hasOwnProperty.call(f,o)&&(this._eventHandlers[o]||(this._eventHandlers[o]=f[o]));t.status!==t.C.STATUS_USER_CLOSED||this._method===l.BYE&&this._method===l.ACK||this._eventHandlers.onTransportError()},(t=[{key:"send",value:function(){var e=this,t={onRequestTimeout:function(){e._eventHandlers.onRequestTimeout()},onTransportError:function(){e._eventHandlers.onTransportError()},onReceiveResponse:function(t){e._receiveResponse(t)}};switch(this._method){case"INVITE":this.clientTransaction=new a.InviteClientTransaction(this._ua,this._ua.transport,this._request,t);break;case"ACK":this.clientTransaction=new a.AckClientTransaction(this._ua,this._ua.transport,this._request,t);break;default:this.clientTransaction=new a.NonInviteClientTransaction(this._ua,this._ua.transport,this._request,t)}this._ua._configuration.authorization_jwt&&this._request.setHeader("Authorization",this._ua._configuration.authorization_jwt),this.clientTransaction.send()}},{key:"_receiveResponse",value:function(e){var t,n,r=e.status_code;if(401!==r&&407!==r||null===this._ua.configuration.password&&null===this._ua.configuration.ha1)this._eventHandlers.onReceiveResponse(e);else{if(401===e.status_code?(t=e.parseHeader("www-authenticate"),n="authorization"):(t=e.parseHeader("proxy-authenticate"),n="proxy-authorization"),!t)return c.debug("".concat(e.status_code," with wrong or missing challenge, cannot authenticate")),void this._eventHandlers.onReceiveResponse(e);if(!this._challenged||!this._staled&&!0===t.stale){if(this._auth||(this._auth=new u({username:this._ua.configuration.authorization_user,password:this._ua.configuration.password,realm:this._ua.configuration.realm,ha1:this._ua.configuration.ha1})),!this._auth.authenticate(this._request,t))return void this._eventHandlers.onReceiveResponse(e);this._challenged=!0,this._ua.set("realm",this._auth.get("realm")),this._ua.set("ha1",this._auth.get("ha1")),t.stale&&(this._staled=!0),this._request=this._request.clone(),this._request.cseq+=1,this._request.setHeader("cseq","".concat(this._request.cseq," ").concat(this._method)),this._request.setHeader(n,this._auth.toString()),this._eventHandlers.onAuthenticated(this._request),this.send()}else this._eventHandlers.onReceiveResponse(e)}}}])&&o(e.prototype,t),n&&o(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e;var e,t,n}()},{"./Constants":2,"./DigestAuthentication":5,"./Logger":9,"./Transactions":24}],21:[function(e,t,n){"use strict";function r(e,t,n){return t=o(t),function(e,t){if(t&&("object"==l(t)||"function"==typeof t))return t;if(void 0!==t)throw new TypeError("Derived constructors may only return object or undefined");return function(e){if(void 0===e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return e}(e)}(e,function(){try{var e=!Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){}))}catch(e){}return function(){return!!e}()}()?Reflect.construct(t,n||[],o(e).constructor):t.apply(e,n))}function o(e){return(o=Object.setPrototypeOf?Object.getPrototypeOf.bind():function(e){return e.__proto__||Object.getPrototypeOf(e)})(e)}function i(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function");e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,writable:!0,configurable:!0}}),Object.defineProperty(e,"prototype",{writable:!1}),t&&s(e,t)}function s(e,t){return(s=Object.setPrototypeOf?Object.setPrototypeOf.bind():function(e,t){return e.__proto__=t,e})(e,t)}function l(e){return(l="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function u(e,t){var n="undefined"!=typeof Symbol&&e[Symbol.iterator]||e["@@iterator"];if(!n){if(Array.isArray(e)||(n=function(e,t){if(e){if("string"==typeof e)return a(e,t);var n={}.toString.call(e).slice(8,-1);return"Object"===n&&e.constructor&&(n=e.constructor.name),"Map"===n||"Set"===n?Array.from(e):"Arguments"===n||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)?a(e,t):void 0}}(e))||t&&e&&"number"==typeof e.length){n&&(e=n);var r=0,o=function(){};return{s:o,n:function(){return r>=e.length?{done:!0}:{done:!1,value:e[r++]}},e:function(e){throw e},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var i,s=!0,l=!1;return{s:function(){n=n.call(e)},n:function(){var e=n.next();return s=e.done,e},e:function(e){l=!0,i=e},f:function(){try{s||null==n.return||n.return()}finally{if(l)throw i}}}}function a(e,t){(null==t||t>e.length)&&(t=e.length);for(var n=0,r=Array(t);n<t;n++)r[n]=e[n];return r}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function f(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,d(r.key),r)}}function h(e,t,n){return t&&f(e.prototype,t),n&&f(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e}function d(e){var t=function(e,t){if("object"!=l(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var r=n.call(e,t||"default");if("object"!=l(r))return r;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==l(t)?t:t+""}var _=e("sdp-transform"),p=e("./Logger"),m=e("./Constants"),v=e("./Utils"),g=e("./NameAddrHeader"),y=e("./Grammar"),T=new p("SIPMessage"),b=function(){function e(t,n,r,o,i,s){if(c(this,e),!t||!n||!r)return null;o=o||{},this.ua=r,this.headers={},this.method=t,this.ruri=n,this.body=s,this.extraHeaders=v.cloneArray(i),this.ua.configuration.extra_headers&&(this.extraHeaders=this.extraHeaders.concat(this.ua.configuration.extra_headers)),o.route_set?this.setHeader("route",o.route_set):r.configuration.use_preloaded_route&&this.setHeader("route","<".concat(r.transport.sip_uri,";lr>")),this.setHeader("via",""),this.setHeader("max-forwards",m.MAX_FORWARDS);var l=o.to_uri||n,u=o.to_tag?{tag:o.to_tag}:null,a=void 0!==o.to_display_name?o.to_display_name:null;this.to=new g(l,a,u),this.setHeader("to",this.to.toString());var f,h=o.from_uri||r.configuration.uri,d={tag:o.from_tag||v.newTag()};f=void 0!==o.from_display_name?o.from_display_name:r.configuration.display_name?r.configuration.display_name:null,this.from=new g(h,f,d),this.setHeader("from",this.from.toString());var _=o.call_id||r.configuration.jssip_id+v.createRandomToken(15);this.call_id=_,this.setHeader("call-id",_);var p=o.cseq||Math.floor(1e4*Math.random());this.cseq=p,this.setHeader("cseq","".concat(p," ").concat(t))}return h(e,[{key:"setHeader",value:function(e,t){for(var n=new RegExp("^\\s*".concat(e,"\\s*:"),"i"),r=0;r<this.extraHeaders.length;r++)n.test(this.extraHeaders[r])&&this.extraHeaders.splice(r,1);this.headers[v.headerize(e)]=Array.isArray(t)?t:[t]}},{key:"getHeader",value:function(e){var t=this.headers[v.headerize(e)];if(t){if(t[0])return t[0]}else{var n,r=new RegExp("^\\s*".concat(e,"\\s*:"),"i"),o=u(this.extraHeaders);try{for(o.s();!(n=o.n()).done;){var i=n.value;if(r.test(i))return i.substring(i.indexOf(":")+1).trim()}}catch(e){o.e(e)}finally{o.f()}}}},{key:"getHeaders",value:function(e){var t=this.headers[v.headerize(e)],n=[];if(t){var r,o=u(t);try{for(o.s();!(r=o.n()).done;){var i=r.value;n.push(i)}}catch(e){o.e(e)}finally{o.f()}return n}var s,l=new RegExp("^\\s*".concat(e,"\\s*:"),"i"),a=u(this.extraHeaders);try{for(a.s();!(s=a.n()).done;){var c=s.value;l.test(c)&&n.push(c.substring(c.indexOf(":")+1).trim())}}catch(e){a.e(e)}finally{a.f()}return n}},{key:"hasHeader",value:function(e){if(this.headers[v.headerize(e)])return!0;var t,n=new RegExp("^\\s*".concat(e,"\\s*:"),"i"),r=u(this.extraHeaders);try{for(r.s();!(t=r.n()).done;){var o=t.value;if(n.test(o))return!0}}catch(e){r.e(e)}finally{r.f()}return!1}},{key:"parseSDP",value:function(e){return!e&&this.sdp?this.sdp:(this.sdp=_.parse(this.body||""),this.sdp)}},{key:"toString",value:function(){var e="".concat(this.method," ").concat(this.ruri," SIP/2.0\r\n");for(var t in this.headers)if(Object.prototype.hasOwnProperty.call(this.headers,t)){var n,r=u(this.headers[t]);try{for(r.s();!(n=r.n()).done;){var o=n.value;e+="".concat(t,": ").concat(o,"\r\n")}}catch(e){r.e(e)}finally{r.f()}}var i,s=u(this.extraHeaders);try{for(s.s();!(i=s.n()).done;){var l=i.value;e+="".concat(l.trim(),"\r\n")}}catch(e){s.e(e)}finally{s.f()}var a=[];switch(this.method){case m.REGISTER:a.push("path","gruu");break;case m.INVITE:this.ua.configuration.session_timers&&a.push("timer"),(this.ua.contact.pub_gruu||this.ua.contact.temp_gruu)&&a.push("gruu"),a.push("ice","replaces");break;case m.UPDATE:this.ua.configuration.session_timers&&a.push("timer"),a.push("ice")}a.push("outbound");var c=this.ua.configuration.user_agent||m.USER_AGENT;if(e+="Allow: ".concat(m.ALLOWED_METHODS,"\r\n"),e+="Supported: ".concat(a,"\r\n"),e+="User-Agent: ".concat(c,"\r\n"),this.body){var f=v.str_utf8_length(this.body);e+="Content-Length: ".concat(f,"\r\n\r\n"),e+=this.body}else e+="Content-Length: 0\r\n\r\n";return e}},{key:"clone",value:function(){var t=new e(this.method,this.ruri,this.ua);return Object.keys(this.headers).forEach(function(e){t.headers[e]=this.headers[e].slice()},this),t.body=this.body,t.extraHeaders=v.cloneArray(this.extraHeaders),t.to=this.to,t.from=this.from,t.call_id=this.call_id,t.cseq=this.cseq,t}}])}(),S=function(e){function t(e,n,o,i,s){var l;return c(this,t),(l=r(this,t,[m.INVITE,e,n,o,i,s])).transaction=null,l}return i(t,b),h(t,[{key:"cancel",value:function(e){this.transaction.cancel(e)}},{key:"clone",value:function(){var e=new t(this.ruri,this.ua);return Object.keys(this.headers).forEach(function(t){e.headers[t]=this.headers[t].slice()},this),e.body=this.body,e.extraHeaders=v.cloneArray(this.extraHeaders),e.to=this.to,e.from=this.from,e.call_id=this.call_id,e.cseq=this.cseq,e.transaction=this.transaction,e}}])}(),C=function(){return h(function e(){c(this,e),this.data=null,this.headers=null,this.method=null,this.via=null,this.via_branch=null,this.call_id=null,this.cseq=null,this.from=null,this.from_tag=null,this.to=null,this.to_tag=null,this.body=null,this.sdp=null},[{key:"addHeader",value:function(e,t){var n={raw:t};e=v.headerize(e),this.headers[e]?this.headers[e].push(n):this.headers[e]=[n]}},{key:"getHeader",value:function(e){var t=this.headers[v.headerize(e)];if(t)return t[0]?t[0].raw:void 0}},{key:"getHeaders",value:function(e){var t=this.headers[v.headerize(e)],n=[];if(!t)return[];var r,o=u(t);try{for(o.s();!(r=o.n()).done;){var i=r.value;n.push(i.raw)}}catch(e){o.e(e)}finally{o.f()}return n}},{key:"hasHeader",value:function(e){return!!this.headers[v.headerize(e)]}},{key:"parseHeader",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(e=v.headerize(e),this.headers[e]){if(!(t>=this.headers[e].length)){var n=this.headers[e][t],r=n.raw;if(n.parsed)return n.parsed;var o=y.parse(r,e.replace(/-/g,"_"));return-1===o?(this.headers[e].splice(t,1),void T.debug('error parsing "'.concat(e,'" header field with value "').concat(r,'"'))):(n.parsed=o,o)}T.debug('not so many "'.concat(e,'" headers present'))}else T.debug('header "'.concat(e,'" not present'))}},{key:"s",value:function(e,t){return this.parseHeader(e,t)}},{key:"setHeader",value:function(e,t){var n={raw:t};this.headers[v.headerize(e)]=[n]}},{key:"parseSDP",value:function(e){return!e&&this.sdp?this.sdp:(this.sdp=_.parse(this.body||""),this.sdp)}},{key:"toString",value:function(){return this.data}}])}(),E=function(e){function t(e){var n;return c(this,t),(n=r(this,t)).ua=e,n.headers={},n.ruri=null,n.transport=null,n.server_transaction=null,n}return i(t,C),h(t,[{key:"reply",value:function(e,t,n,r,o,i){var s=[],l=this.getHeader("To");if(t=t||null,!(e=e||null)||e<100||e>699)throw new TypeError("Invalid status_code: ".concat(e));if(t&&"string"!=typeof t&&!(t instanceof String))throw new TypeError("Invalid reason_phrase: ".concat(t));t=t||m.REASON_PHRASE[e]||"",n=v.cloneArray(n),this.ua.configuration.extra_headers&&(n=n.concat(this.ua.configuration.extra_headers));var a="SIP/2.0 ".concat(e," ").concat(t,"\r\n");if(this.method===m.INVITE&&e>100&&e<=200){var c,f=u(this.getHeaders("record-route"));try{for(f.s();!(c=f.n()).done;){var h=c.value;a+="Record-Route: ".concat(h,"\r\n")}}catch(e){f.e(e)}finally{f.f()}}var d,_=u(this.getHeaders("via"));try{for(_.s();!(d=_.n()).done;){var p=d.value;a+="Via: ".concat(p,"\r\n")}}catch(e){_.e(e)}finally{_.f()}!this.to_tag&&e>100?l+=";tag=".concat(v.newTag()):this.to_tag&&!this.s("to").hasParam("tag")&&(l+=";tag=".concat(this.to_tag)),a+="To: ".concat(l,"\r\n"),a+="From: ".concat(this.getHeader("From"),"\r\n"),a+="Call-ID: ".concat(this.call_id,"\r\n"),a+="CSeq: ".concat(this.cseq," ").concat(this.method,"\r\n");var g,y=u(n);try{for(y.s();!(g=y.n()).done;){var T=g.value;a+="".concat(T.trim(),"\r\n")}}catch(e){y.e(e)}finally{y.f()}switch(this.method){case m.INVITE:this.ua.configuration.session_timers&&s.push("timer"),(this.ua.contact.pub_gruu||this.ua.contact.temp_gruu)&&s.push("gruu"),s.push("ice","replaces");break;case m.UPDATE:this.ua.configuration.session_timers&&s.push("timer"),r&&s.push("ice"),s.push("replaces")}if(s.push("outbound"),this.method===m.OPTIONS?(a+="Allow: ".concat(m.ALLOWED_METHODS,"\r\n"),a+="Accept: ".concat(m.ACCEPTED_BODY_TYPES,"\r\n")):405===e?a+="Allow: ".concat(m.ALLOWED_METHODS,"\r\n"):415===e&&(a+="Accept: ".concat(m.ACCEPTED_BODY_TYPES,"\r\n")),a+="Supported: ".concat(s,"\r\n"),r){var b=v.str_utf8_length(r);a+="Content-Type: application/sdp\r\n",a+="Content-Length: ".concat(b,"\r\n\r\n"),a+=r}else a+="Content-Length: ".concat(0,"\r\n\r\n");this.server_transaction.receiveResponse(e,a,o,i)}},{key:"reply_sl",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,n=this.getHeaders("via");if(!e||e<100||e>699)throw new TypeError("Invalid status_code: ".concat(e));if(t&&"string"!=typeof t&&!(t instanceof String))throw new TypeError("Invalid reason_phrase: ".concat(t));t=t||m.REASON_PHRASE[e]||"";var r,o="SIP/2.0 ".concat(e," ").concat(t,"\r\n"),i=u(n);try{for(i.s();!(r=i.n()).done;){var s=r.value;o+="Via: ".concat(s,"\r\n")}}catch(e){i.e(e)}finally{i.f()}var l=this.getHeader("To");if(!this.to_tag&&e>100?l+=";tag=".concat(v.newTag()):this.to_tag&&!this.s("to").hasParam("tag")&&(l+=";tag=".concat(this.to_tag)),o+="To: ".concat(l,"\r\n"),o+="From: ".concat(this.getHeader("From"),"\r\n"),o+="Call-ID: ".concat(this.call_id,"\r\n"),o+="CSeq: ".concat(this.cseq," ").concat(this.method,"\r\n"),this.ua.configuration.extra_headers){var a,c=u(this.ua.configuration.extra_headers);try{for(c.s();!(a=c.n()).done;){var f=a.value;o+="".concat(f.trim(),"\r\n")}}catch(e){c.e(e)}finally{c.f()}}o+="Content-Length: ".concat(0,"\r\n\r\n"),this.transport.send(o)}}])}(),A=function(e){function t(){var e;return c(this,t),(e=r(this,t)).headers={},e.status_code=null,e.reason_phrase=null,e}return i(t,C),h(t)}();t.exports={OutgoingRequest:b,InitialOutgoingInviteRequest:S,IncomingRequest:E,IncomingResponse:A}},{"./Constants":2,"./Grammar":7,"./Logger":9,"./NameAddrHeader":11,"./Utils":28,"sdp-transform":37}],22:[function(e,t,n){"use strict";var r=e("./Logger"),o=e("./Utils"),i=e("./Grammar"),s=new r("Socket");n.isSocket=function(e){if(Array.isArray(e))return!1;if(void 0===e)return s.warn("undefined JsSIP.Socket instance"),!1;try{if(!o.isString(e.url))throw s.warn("missing or invalid JsSIP.Socket url property"),new Error("Missing or invalid JsSIP.Socket url property");if(!o.isString(e.via_transport))throw s.warn("missing or invalid JsSIP.Socket via_transport property"),new Error("Missing or invalid JsSIP.Socket via_transport property");if(-1===i.parse(e.sip_uri,"SIP_URI"))throw s.warn("missing or invalid JsSIP.Socket sip_uri property"),new Error("missing or invalid JsSIP.Socket sip_uri property")}catch(e){return!1}try{["connect","disconnect","send"].forEach(function(t){if(!o.isFunction(e[t]))throw s.warn("missing or invalid JsSIP.Socket method: ".concat(t)),new Error("Missing or invalid JsSIP.Socket method: ".concat(t))})}catch(e){return!1}return!0}},{"./Grammar":7,"./Logger":9,"./Utils":28}],23:[function(e,t,n){"use strict";var r=500;t.exports={T1:r,T2:4e3,T4:5e3,TIMER_B:32e3,TIMER_D:0,TIMER_F:32e3,TIMER_H:32e3,TIMER_I:0,TIMER_J:0,TIMER_K:0,TIMER_L:32e3,TIMER_M:32e3,PROVISIONAL_RESPONSE_INTERVAL:6e4}},{}],24:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function o(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function i(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,l(r.key),r)}}function s(e,t,n){return t&&i(e.prototype,t),n&&i(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e}function l(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var o=n.call(e,t||"default");if("object"!=r(o))return o;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}function u(e,t,n){return t=a(t),function(e,t){if(t&&("object"==r(t)||"function"==typeof t))return t;if(void 0!==t)throw new TypeError("Derived constructors may only return object or undefined");return function(e){if(void 0===e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return e}(e)}(e,function(){try{var e=!Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){}))}catch(e){}return function(){return!!e}()}()?Reflect.construct(t,n||[],a(e).constructor):t.apply(e,n))}function a(e){return(a=Object.setPrototypeOf?Object.getPrototypeOf.bind():function(e){return e.__proto__||Object.getPrototypeOf(e)})(e)}function c(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function");e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,writable:!0,configurable:!0}}),Object.defineProperty(e,"prototype",{writable:!1}),t&&f(e,t)}function f(e,t){return(f=Object.setPrototypeOf?Object.setPrototypeOf.bind():function(e,t){return e.__proto__=t,e})(e,t)}var h=e("events").EventEmitter,d=e("./Logger"),_=e("./Constants"),p=e("./SIPMessage"),m=e("./Timers"),v=new d("NonInviteClientTransaction"),g=new d("InviteClientTransaction"),y=new d("AckClientTransaction"),T=new d("NonInviteServerTransaction"),b=new d("InviteServerTransaction"),S={STATUS_TRYING:1,STATUS_PROCEEDING:2,STATUS_CALLING:3,STATUS_ACCEPTED:4,STATUS_COMPLETED:5,STATUS_TERMINATED:6,STATUS_CONFIRMED:7,NON_INVITE_CLIENT:"nict",NON_INVITE_SERVER:"nist",INVITE_CLIENT:"ict",INVITE_SERVER:"ist"},C=function(e){function t(e,n,r,i){var s;o(this,t),(s=u(this,t)).type=S.NON_INVITE_CLIENT,s.id="z9hG4bK".concat(Math.floor(1e7*Math.random())),s.ua=e,s.transport=n,s.request=r,s.eventHandlers=i;var l="SIP/2.0/".concat(n.via_transport);return l+=" ".concat(e.configuration.via_host,";branch=").concat(s.id),s.request.setHeader("via",l),s.ua.newTransaction(s),s}return c(t,h),s(t,[{key:"C",get:function(){return S}},{key:"stateChanged",value:function(e){this.state=e,this.emit("stateChanged")}},{key:"send",value:function(){var e=this;this.stateChanged(S.STATUS_TRYING),this.F=setTimeout(function(){e.timer_F()},m.TIMER_F),this.transport.send(this.request)||this.onTransportError()}},{key:"onTransportError",value:function(){v.debug("transport error occurred, deleting transaction ".concat(this.id)),clearTimeout(this.F),clearTimeout(this.K),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this),this.eventHandlers.onTransportError()}},{key:"timer_F",value:function(){v.debug("Timer F expired for transaction ".concat(this.id)),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this),this.eventHandlers.onRequestTimeout()}},{key:"timer_K",value:function(){this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"receiveResponse",value:function(e){var t=this,n=e.status_code;if(n<200)switch(this.state){case S.STATUS_TRYING:case S.STATUS_PROCEEDING:this.stateChanged(S.STATUS_PROCEEDING),this.eventHandlers.onReceiveResponse(e)}else switch(this.state){case S.STATUS_TRYING:case S.STATUS_PROCEEDING:this.stateChanged(S.STATUS_COMPLETED),clearTimeout(this.F),408===n?this.eventHandlers.onRequestTimeout():this.eventHandlers.onReceiveResponse(e),this.K=setTimeout(function(){t.timer_K()},m.TIMER_K);break;case S.STATUS_COMPLETED:}}}])}(),E=function(e){function t(e,n,r,i){var s;o(this,t),(s=u(this,t)).type=S.INVITE_CLIENT,s.id="z9hG4bK".concat(Math.floor(1e7*Math.random())),s.ua=e,s.transport=n,s.request=r,s.eventHandlers=i,r.transaction=s;var l="SIP/2.0/".concat(n.via_transport);return l+=" ".concat(e.configuration.via_host,";branch=").concat(s.id),s.request.setHeader("via",l),s.ua.newTransaction(s),s}return c(t,h),s(t,[{key:"C",get:function(){return S}},{key:"stateChanged",value:function(e){this.state=e,this.emit("stateChanged")}},{key:"send",value:function(){var e=this;this.stateChanged(S.STATUS_CALLING),this.B=setTimeout(function(){e.timer_B()},m.TIMER_B),this.transport.send(this.request)||this.onTransportError()}},{key:"onTransportError",value:function(){clearTimeout(this.B),clearTimeout(this.D),clearTimeout(this.M),this.state!==S.STATUS_ACCEPTED&&(g.debug("transport error occurred, deleting transaction ".concat(this.id)),this.eventHandlers.onTransportError()),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"timer_M",value:function(){g.debug("Timer M expired for transaction ".concat(this.id)),this.state===S.STATUS_ACCEPTED&&(clearTimeout(this.B),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this))}},{key:"timer_B",value:function(){g.debug("Timer B expired for transaction ".concat(this.id)),this.state===S.STATUS_CALLING&&(this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this),this.eventHandlers.onRequestTimeout())}},{key:"timer_D",value:function(){g.debug("Timer D expired for transaction ".concat(this.id)),clearTimeout(this.B),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"sendACK",value:function(e){var t=this,n=new p.OutgoingRequest(_.ACK,this.request.ruri,this.ua,{route_set:this.request.getHeaders("route"),call_id:this.request.getHeader("call-id"),cseq:this.request.cseq});n.setHeader("from",this.request.getHeader("from")),n.setHeader("via",this.request.getHeader("via")),n.setHeader("to",e.getHeader("to")),this.D=setTimeout(function(){t.timer_D()},m.TIMER_D),this.transport.send(n)}},{key:"cancel",value:function(e){if(this.state===S.STATUS_PROCEEDING){var t=new p.OutgoingRequest(_.CANCEL,this.request.ruri,this.ua,{route_set:this.request.getHeaders("route"),call_id:this.request.getHeader("call-id"),cseq:this.request.cseq});t.setHeader("from",this.request.getHeader("from")),t.setHeader("via",this.request.getHeader("via")),t.setHeader("to",this.request.getHeader("to")),e&&t.setHeader("reason",e),this.transport.send(t)}}},{key:"receiveResponse",value:function(e){var t=this,n=e.status_code;if(n>=100&&n<=199)switch(this.state){case S.STATUS_CALLING:this.stateChanged(S.STATUS_PROCEEDING),this.eventHandlers.onReceiveResponse(e);break;case S.STATUS_PROCEEDING:this.eventHandlers.onReceiveResponse(e)}else if(n>=200&&n<=299)switch(this.state){case S.STATUS_CALLING:case S.STATUS_PROCEEDING:this.stateChanged(S.STATUS_ACCEPTED),this.M=setTimeout(function(){t.timer_M()},m.TIMER_M),this.eventHandlers.onReceiveResponse(e);break;case S.STATUS_ACCEPTED:this.eventHandlers.onReceiveResponse(e)}else if(n>=300&&n<=699)switch(this.state){case S.STATUS_CALLING:case S.STATUS_PROCEEDING:this.stateChanged(S.STATUS_COMPLETED),this.sendACK(e),this.eventHandlers.onReceiveResponse(e);break;case S.STATUS_COMPLETED:this.sendACK(e)}}}])}(),A=function(e){function t(e,n,r,i){var s;o(this,t),(s=u(this,t)).id="z9hG4bK".concat(Math.floor(1e7*Math.random())),s.transport=n,s.request=r,s.eventHandlers=i;var l="SIP/2.0/".concat(n.via_transport);return l+=" ".concat(e.configuration.via_host,";branch=").concat(s.id),s.request.setHeader("via",l),s}return c(t,h),s(t,[{key:"C",get:function(){return S}},{key:"send",value:function(){this.transport.send(this.request)||this.onTransportError()}},{key:"onTransportError",value:function(){y.debug("transport error occurred for transaction ".concat(this.id)),this.eventHandlers.onTransportError()}}])}(),w=function(e){function t(e,n,r){var i;return o(this,t),(i=u(this,t)).type=S.NON_INVITE_SERVER,i.id=r.via_branch,i.ua=e,i.transport=n,i.request=r,i.last_response="",r.server_transaction=i,i.state=S.STATUS_TRYING,e.newTransaction(i),i}return c(t,h),s(t,[{key:"C",get:function(){return S}},{key:"stateChanged",value:function(e){this.state=e,this.emit("stateChanged")}},{key:"timer_J",value:function(){T.debug("Timer J expired for transaction ".concat(this.id)),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"onTransportError",value:function(){this.transportError||(this.transportError=!0,T.debug("transport error occurred, deleting transaction ".concat(this.id)),clearTimeout(this.J),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this))}},{key:"receiveResponse",value:function(e,t,n,r){var o=this;if(100===e)switch(this.state){case S.STATUS_TRYING:this.stateChanged(S.STATUS_PROCEEDING),this.transport.send(t)||this.onTransportError();break;case S.STATUS_PROCEEDING:this.last_response=t,this.transport.send(t)?n&&n():(this.onTransportError(),r&&r())}else if(e>=200&&e<=699)switch(this.state){case S.STATUS_TRYING:case S.STATUS_PROCEEDING:this.stateChanged(S.STATUS_COMPLETED),this.last_response=t,this.J=setTimeout(function(){o.timer_J()},m.TIMER_J),this.transport.send(t)?n&&n():(this.onTransportError(),r&&r());break;case S.STATUS_COMPLETED:}}}])}(),R=function(e){function t(e,n,r){var i;return o(this,t),(i=u(this,t)).type=S.INVITE_SERVER,i.id=r.via_branch,i.ua=e,i.transport=n,i.request=r,i.last_response="",r.server_transaction=i,i.state=S.STATUS_PROCEEDING,e.newTransaction(i),i.resendProvisionalTimer=null,r.reply(100),i}return c(t,h),s(t,[{key:"C",get:function(){return S}},{key:"stateChanged",value:function(e){this.state=e,this.emit("stateChanged")}},{key:"timer_H",value:function(){b.debug("Timer H expired for transaction ".concat(this.id)),this.state===S.STATUS_COMPLETED&&b.debug("ACK not received, dialog will be terminated"),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"timer_I",value:function(){this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"timer_L",value:function(){b.debug("Timer L expired for transaction ".concat(this.id)),this.state===S.STATUS_ACCEPTED&&(this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this))}},{key:"onTransportError",value:function(){this.transportError||(this.transportError=!0,b.debug("transport error occurred, deleting transaction ".concat(this.id)),null!==this.resendProvisionalTimer&&(clearInterval(this.resendProvisionalTimer),this.resendProvisionalTimer=null),clearTimeout(this.L),clearTimeout(this.H),clearTimeout(this.I),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this))}},{key:"resend_provisional",value:function(){this.transport.send(this.last_response)||this.onTransportError()}},{key:"receiveResponse",value:function(e,t,n,r){var o=this;if(e>=100&&e<=199)switch(this.state){case S.STATUS_PROCEEDING:this.transport.send(t)||this.onTransportError(),this.last_response=t}if(e>100&&e<=199&&this.state===S.STATUS_PROCEEDING)null===this.resendProvisionalTimer&&(this.resendProvisionalTimer=setInterval(function(){o.resend_provisional()},m.PROVISIONAL_RESPONSE_INTERVAL));else if(e>=200&&e<=299)switch(this.state){case S.STATUS_PROCEEDING:this.stateChanged(S.STATUS_ACCEPTED),this.last_response=t,this.L=setTimeout(function(){o.timer_L()},m.TIMER_L),null!==this.resendProvisionalTimer&&(clearInterval(this.resendProvisionalTimer),this.resendProvisionalTimer=null);case S.STATUS_ACCEPTED:this.transport.send(t)?n&&n():(this.onTransportError(),r&&r())}else if(e>=300&&e<=699)switch(this.state){case S.STATUS_PROCEEDING:null!==this.resendProvisionalTimer&&(clearInterval(this.resendProvisionalTimer),this.resendProvisionalTimer=null),this.transport.send(t)?(this.stateChanged(S.STATUS_COMPLETED),this.H=setTimeout(function(){o.timer_H()},m.TIMER_H),n&&n()):(this.onTransportError(),r&&r())}}}])}();t.exports={C:S,NonInviteClientTransaction:C,InviteClientTransaction:E,AckClientTransaction:A,NonInviteServerTransaction:w,InviteServerTransaction:R,checkTransaction:function(e,t){var n,r=e._transactions;switch(t.method){case _.INVITE:if(n=r.ist[t.via_branch]){switch(n.state){case S.STATUS_PROCEEDING:n.transport.send(n.last_response);break;case S.STATUS_ACCEPTED:}return!0}break;case _.ACK:if(!(n=r.ist[t.via_branch]))return!1;if(n.state===S.STATUS_ACCEPTED)return!1;if(n.state===S.STATUS_COMPLETED)return n.state=S.STATUS_CONFIRMED,n.I=setTimeout(function(){n.timer_I()},m.TIMER_I),!0;break;case _.CANCEL:return(n=r.ist[t.via_branch])?(t.reply_sl(200),n.state!==S.STATUS_PROCEEDING):(t.reply_sl(481),!0);default:if(n=r.nist[t.via_branch]){switch(n.state){case S.STATUS_TRYING:break;case S.STATUS_PROCEEDING:case S.STATUS_COMPLETED:n.transport.send(n.last_response)}return!0}}}}},{"./Constants":2,"./Logger":9,"./SIPMessage":21,"./Timers":23,events:31}],25:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function o(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,i(r.key),r)}}function i(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var o=n.call(e,t||"default");if("object"!=r(o))return o;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}var s=e("./Logger"),l=e("./Socket"),u=e("./Constants"),a=new s("Transport"),c={STATUS_CONNECTED:0,STATUS_CONNECTING:1,STATUS_DISCONNECTED:2,SOCKET_STATUS_READY:0,SOCKET_STATUS_ERROR:1,recovery_options:{min_interval:u.CONNECTION_RECOVERY_MIN_INTERVAL,max_interval:u.CONNECTION_RECOVERY_MAX_INTERVAL}};t.exports=function(){return e=function e(t){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:c.recovery_options;!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),a.debug("new()"),this.status=c.STATUS_DISCONNECTED,this.socket=null,this.sockets=[],this.recovery_options=n,this.recover_attempts=0,this.recovery_timer=null,this.close_requested=!1;try{this.textDecoder=new TextDecoder("utf8")}catch(e){a.warn("cannot use TextDecoder: ".concat(e))}if(void 0===t)throw new TypeError("Invalid argument. undefined 'sockets' argument");t instanceof Array||(t=[t]),t.forEach(function(e){if(!l.isSocket(e.socket))throw new TypeError("Invalid argument. invalid 'JsSIP.Socket' instance");if(e.weight&&!Number(e.weight))throw new TypeError("Invalid argument. 'weight' attribute is not a number");this.sockets.push({socket:e.socket,weight:e.weight||0,status:c.SOCKET_STATUS_READY})},this),this._getSocket()},(t=[{key:"via_transport",get:function(){return this.socket.via_transport}},{key:"url",get:function(){return this.socket.url}},{key:"sip_uri",get:function(){return this.socket.sip_uri}},{key:"connect",value:function(){a.debug("connect()"),this.isConnected()?a.debug("Transport is already connected"):this.isConnecting()?a.debug("Transport is connecting"):(this.close_requested=!1,this.status=c.STATUS_CONNECTING,this.onconnecting({socket:this.socket,attempts:this.recover_attempts}),this.close_requested||(this.socket.onconnect=this._onConnect.bind(this),this.socket.ondisconnect=this._onDisconnect.bind(this),this.socket.ondata=this._onData.bind(this),this.socket.connect()))}},{key:"disconnect",value:function(){a.debug("close()"),this.close_requested=!0,this.recover_attempts=0,this.status=c.STATUS_DISCONNECTED,null!==this.recovery_timer&&(clearTimeout(this.recovery_timer),this.recovery_timer=null),this.socket.onconnect=function(){},this.socket.ondisconnect=function(){},this.socket.ondata=function(){},this.socket.disconnect(),this.ondisconnect({socket:this.socket,error:!1})}},{key:"send",value:function(e){if(a.debug("send()"),!this.isConnected())return a.warn("unable to send message, transport is not connected"),!1;var t=e.toString();return a.debug("sending message:\n\n".concat(t,"\n")),this.socket.send(t)}},{key:"isConnected",value:function(){return this.status===c.STATUS_CONNECTED}},{key:"isConnecting",value:function(){return this.status===c.STATUS_CONNECTING}},{key:"_reconnect",value:function(){var e=this;this.recover_attempts+=1;var t=Math.floor(Math.random()*Math.pow(2,this.recover_attempts)+1);t<this.recovery_options.min_interval?t=this.recovery_options.min_interval:t>this.recovery_options.max_interval&&(t=this.recovery_options.max_interval),a.debug("reconnection attempt: ".concat(this.recover_attempts,". next connection attempt in ").concat(t," seconds")),this.recovery_timer=setTimeout(function(){e.close_requested||e.isConnected()||e.isConnecting()||(e._getSocket(),e.connect())},1e3*t)}},{key:"_getSocket",value:function(){var e=[];if(this.sockets.forEach(function(t){t.status!==c.SOCKET_STATUS_ERROR&&(0===e.length?e.push(t):t.weight>e[0].weight?e=[t]:t.weight===e[0].weight&&e.push(t))}),0===e.length)return this.sockets.forEach(function(e){e.status=c.SOCKET_STATUS_READY}),void this._getSocket();var t=Math.floor(Math.random()*e.length);this.socket=e[t].socket}},{key:"_onConnect",value:function(){this.recover_attempts=0,this.status=c.STATUS_CONNECTED,null!==this.recovery_timer&&(clearTimeout(this.recovery_timer),this.recovery_timer=null),this.onconnect({socket:this})}},{key:"_onDisconnect",value:function(e,t,n){this.status=c.STATUS_DISCONNECTED,this.ondisconnect({socket:this.socket,error:e,code:t,reason:n}),this.close_requested||(this.sockets.forEach(function(e){this.socket===e.socket&&(e.status=c.SOCKET_STATUS_ERROR)},this),this._reconnect(e))}},{key:"_onData",value:function(e){if("\r\n\r\n"!==e)if("\r\n"!==e){if("string"!=typeof e){try{e=this.textDecoder?this.textDecoder.decode(e):String.fromCharCode.apply(null,new Uint8Array(e))}catch(e){return void a.debug("received binary message failed to be converted into string, message discarded")}a.debug("received binary message:\n\n".concat(e,"\n"))}else a.debug("received text message:\n\n".concat(e,"\n"));this.ondata({transport:this,message:e})}else a.debug("received message with CRLF Keep Alive response");else{a.debug("received message with double-CRLF Keep Alive request");try{this.socket.send("\r\n")}catch(e){a.warn("error sending Keep Alive response: ".concat(e))}}}}])&&o(e.prototype,t),n&&o(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e;var e,t,n}()},{"./Constants":2,"./Logger":9,"./Socket":22}],26:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function o(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,i(r.key),r)}}function i(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var o=n.call(e,t||"default");if("object"!=r(o))return o;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}function s(e,t,n){return t=l(t),function(e,t){if(t&&("object"==r(t)||"function"==typeof t))return t;if(void 0!==t)throw new TypeError("Derived constructors may only return object or undefined");return function(e){if(void 0===e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return e}(e)}(e,function(){try{var e=!Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){}))}catch(e){}return function(){return!!e}()}()?Reflect.construct(t,n||[],l(e).constructor):t.apply(e,n))}function l(e){return(l=Object.setPrototypeOf?Object.getPrototypeOf.bind():function(e){return e.__proto__||Object.getPrototypeOf(e)})(e)}function u(e,t){return(u=Object.setPrototypeOf?Object.setPrototypeOf.bind():function(e,t){return e.__proto__=t,e})(e,t)}var a=e("events").EventEmitter,c=e("./Logger"),f=e("./Constants"),h=e("./Registrator"),d=e("./RTCSession"),_=e("./Message"),p=e("./Options"),m=e("./Transactions"),v=e("./Transport"),g=e("./Utils"),y=e("./Exceptions"),T=e("./URI"),b=e("./Parser"),S=e("./SIPMessage"),C=e("./sanityCheck"),E=e("./Config"),A=new c("UA"),w={STATUS_INIT:0,STATUS_READY:1,STATUS_USER_CLOSED:2,STATUS_NOT_READY:3,CONFIGURATION_ERROR:1,NETWORK_ERROR:2};t.exports=function(e){function t(e){var n;if(function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t),A.debug("new() [configuration:%o]",e),(n=s(this,t))._cache={credentials:{}},n._configuration=Object.assign({},E.settings),n._dynConfiguration={},n._dialogs={},n._applicants={},n._sessions={},n._transport=null,n._contact=null,n._status=w.STATUS_INIT,n._error=null,n._transactions={nist:{},nict:{},ist:{},ict:{}},n._data={},n._closeTimer=null,void 0===e)throw new TypeError("Not enough arguments");try{n._loadConfig(e)}catch(e){throw n._status=w.STATUS_NOT_READY,n._error=w.CONFIGURATION_ERROR,e}return n._registrator=new h(n),n}return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function");e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,writable:!0,configurable:!0}}),Object.defineProperty(e,"prototype",{writable:!1}),t&&u(e,t)}(t,a),n=t,i=[{key:"C",get:function(){return w}}],(r=[{key:"C",get:function(){return w}},{key:"status",get:function(){return this._status}},{key:"contact",get:function(){return this._contact}},{key:"configuration",get:function(){return this._configuration}},{key:"transport",get:function(){return this._transport}},{key:"start",value:function(){A.debug("start()"),this._status===w.STATUS_INIT?this._transport.connect():this._status===w.STATUS_USER_CLOSED?(A.debug("restarting UA"),null!==this._closeTimer&&(clearTimeout(this._closeTimer),this._closeTimer=null,this._transport.disconnect()),this._status=w.STATUS_INIT,this._transport.connect()):this._status===w.STATUS_READY?A.debug("UA is in READY status, not restarted"):A.debug("ERROR: connection is down, Auto-Recovery system is trying to reconnect"),this._dynConfiguration.register=this._configuration.register}},{key:"register",value:function(){A.debug("register()"),this._dynConfiguration.register=!0,this._registrator.register()}},{key:"unregister",value:function(e){A.debug("unregister()"),this._dynConfiguration.register=!1,this._registrator.unregister(e)}},{key:"registrator",value:function(){return this._registrator}},{key:"isRegistered",value:function(){return this._registrator.registered}},{key:"isConnected",value:function(){return this._transport.isConnected()}},{key:"call",value:function(e,t){A.debug("call()");var n=new d(this);return n.connect(e,t),n}},{key:"sendMessage",value:function(e,t,n){A.debug("sendMessage()");var r=new _(this);return r.send(e,t,n),r}},{key:"sendOptions",value:function(e,t,n){A.debug("sendOptions()");var r=new p(this);return r.send(e,t,n),r}},{key:"terminateSessions",value:function(e){for(var t in A.debug("terminateSessions()"),this._sessions)this._sessions[t].isEnded()||this._sessions[t].terminate(e)}},{key:"stop",value:function(){var e=this;if(A.debug("stop()"),this._dynConfiguration={},this._status!==w.STATUS_USER_CLOSED){this._registrator.close();var t=Object.keys(this._sessions).length;for(var n in this._sessions)if(Object.prototype.hasOwnProperty.call(this._sessions,n)){A.debug("closing session ".concat(n));try{this._sessions[n].terminate()}catch(e){}}for(var r in this._applicants)if(Object.prototype.hasOwnProperty.call(this._applicants,r))try{this._applicants[r].close()}catch(e){}this._status=w.STATUS_USER_CLOSED,0===Object.keys(this._transactions.nict).length+Object.keys(this._transactions.nist).length+Object.keys(this._transactions.ict).length+Object.keys(this._transactions.ist).length&&0===t?this._transport.disconnect():this._closeTimer=setTimeout(function(){e._closeTimer=null,e._transport.disconnect()},2e3)}else A.debug("UA already closed")}},{key:"normalizeTarget",value:function(e){return g.normalizeTarget(e,this._configuration.hostport_params)}},{key:"get",value:function(e){switch(e){case"authorization_user":return this._configuration.authorization_user;case"realm":return this._configuration.realm;case"ha1":return this._configuration.ha1;case"authorization_jwt":return this._configuration.authorization_jwt;default:return void A.warn('get() | cannot get "%s" parameter in runtime',e)}}},{key:"set",value:function(e,t){switch(e){case"authorization_user":this._configuration.authorization_user=String(t);break;case"password":this._configuration.password=String(t);break;case"realm":this._configuration.realm=String(t);break;case"ha1":this._configuration.ha1=String(t),this._configuration.password=null;break;case"authorization_jwt":this._configuration.authorization_jwt=String(t);break;case"display_name":this._configuration.display_name=t;break;case"extra_headers":this._configuration.extra_headers=t;break;default:return A.warn('set() | cannot set "%s" parameter in runtime',e),!1}return!0}},{key:"newTransaction",value:function(e){this._transactions[e.type][e.id]=e,this.emit("newTransaction",{transaction:e})}},{key:"destroyTransaction",value:function(e){delete this._transactions[e.type][e.id],this.emit("transactionDestroyed",{transaction:e})}},{key:"newDialog",value:function(e){this._dialogs[e.id]=e}},{key:"destroyDialog",value:function(e){delete this._dialogs[e.id]}},{key:"newMessage",value:function(e,t){this._applicants[e]=e,this.emit("newMessage",t)}},{key:"newOptions",value:function(e,t){this._applicants[e]=e,this.emit("newOptions",t)}},{key:"destroyMessage",value:function(e){delete this._applicants[e]}},{key:"newRTCSession",value:function(e,t){this._sessions[e.id]=e,this.emit("newRTCSession",t)}},{key:"destroyRTCSession",value:function(e){delete this._sessions[e.id]}},{key:"registered",value:function(e){this.emit("registered",e)}},{key:"unregistered",value:function(e){this.emit("unregistered",e)}},{key:"registrationFailed",value:function(e){this.emit("registrationFailed",e)}},{key:"receiveRequest",value:function(e){var t=e.method;if(e.ruri.user!==this._configuration.uri.user&&e.ruri.user!==this._contact.uri.user)return A.debug("Request-URI does not point to us"),void(e.method!==f.ACK&&e.reply_sl(404));if(e.ruri.scheme!==f.SIPS){if(!m.checkTransaction(this,e)){if(t===f.INVITE?new m.InviteServerTransaction(this,this._transport,e):t!==f.ACK&&t!==f.CANCEL&&new m.NonInviteServerTransaction(this,this._transport,e),t===f.OPTIONS){if(0===this.listeners("newOptions").length)return void e.reply(200);new p(this).init_incoming(e)}else if(t===f.MESSAGE){if(0===this.listeners("newMessage").length)return void e.reply(405);new _(this).init_incoming(e)}else if(t===f.INVITE&&!e.to_tag&&0===this.listeners("newRTCSession").length)return void e.reply(405);var n,r;if(e.to_tag)(n=this._findDialog(e.call_id,e.from_tag,e.to_tag))?n.receiveRequest(e):t===f.NOTIFY?(r=this._findSession(e))?r.receiveRequest(e):(A.debug("received NOTIFY request for a non existent subscription"),e.reply(481,"Subscription does not exist")):t!==f.ACK&&e.reply(481);else switch(t){case f.INVITE:if(window.RTCPeerConnection)if(e.hasHeader("replaces")){var o=e.replaces;(n=this._findDialog(o.call_id,o.from_tag,o.to_tag))?(r=n.owner).isEnded()?e.reply(603):r.receiveRequest(e):e.reply(481)}else(r=new d(this)).init_incoming(e);else A.warn("INVITE received but WebRTC is not supported"),e.reply(488);break;case f.BYE:e.reply(481);break;case f.CANCEL:(r=this._findSession(e))?r.receiveRequest(e):A.debug("received CANCEL request for a non existent session");break;case f.ACK:break;case f.NOTIFY:this.emit("sipEvent",{event:e.event,request:e}),e.reply(200);break;default:e.reply(405)}}}else e.reply_sl(416)}},{key:"_findSession",value:function(e){var t=e.call_id,n=e.from_tag,r=e.to_tag,o=t+n,i=this._sessions[o],s=t+r,l=this._sessions[s];return i||(l||null)}},{key:"_findDialog",value:function(e,t,n){var r=e+t+n,o=this._dialogs[r];return o||(r=e+n+t,(o=this._dialogs[r])||null)}},{key:"_loadConfig",value:function(e){try{E.load(this._configuration,e)}catch(e){throw e}0===this._configuration.display_name&&(this._configuration.display_name="0"),this._configuration.instance_id||(this._configuration.instance_id=g.newUUID()),this._configuration.jssip_id=g.createRandomToken(5);var t=this._configuration.uri.clone();t.user=null,this._configuration.hostport_params=t.toString().replace(/^sip:/i,"");try{this._transport=new v(this._configuration.sockets,{max_interval:this._configuration.connection_recovery_max_interval,min_interval:this._configuration.connection_recovery_min_interval}),this._transport.onconnecting=function(e){this.emit("connecting",e)}.bind(this),this._transport.onconnect=function(e){if(this._status===w.STATUS_USER_CLOSED)return;this._status=w.STATUS_READY,this._error=null,this.emit("connected",e),this._dynConfiguration.register&&this._registrator.register()}.bind(this),this._transport.ondisconnect=function(e){for(var t=0,n=["nict","ict","nist","ist"];t<n.length;t++){var r=n[t];for(var o in this._transactions[r])Object.prototype.hasOwnProperty.call(this._transactions[r],o)&&this._transactions[r][o].onTransportError()}this.emit("disconnected",e),this._registrator.onTransportClosed(),this._status!==w.STATUS_USER_CLOSED&&(this._status=w.STATUS_NOT_READY,this._error=w.NETWORK_ERROR)}.bind(this),this._transport.ondata=function(e){var t=e.transport,n=e.message;if(!(n=b.parseMessage(n,this)))return;if(this._status===w.STATUS_USER_CLOSED&&n instanceof S.IncomingRequest)return;if(!C(n,this,t))return;if(n instanceof S.IncomingRequest)n.transport=t,this.receiveRequest(n);else if(n instanceof S.IncomingResponse){var r;switch(n.method){case f.INVITE:(r=this._transactions.ict[n.via_branch])&&r.receiveResponse(n);break;case f.ACK:break;default:(r=this._transactions.nict[n.via_branch])&&r.receiveResponse(n)}}}.bind(this)}catch(e){throw A.warn(e),new y.ConfigurationError("sockets",this._configuration.sockets)}if(delete this._configuration.sockets,this._configuration.authorization_user||(this._configuration.authorization_user=this._configuration.uri.user),!this._configuration.registrar_server){var n=this._configuration.uri.clone();n.user=null,n.clearParams(),n.clearHeaders(),this._configuration.registrar_server=n}this._configuration.no_answer_timeout*=1e3,this._configuration.contact_uri?this._configuration.via_host=this._configuration.contact_uri.host:this._configuration.contact_uri=new T("sip",g.createRandomToken(8),this._configuration.via_host,null,{transport:"ws"}),this._contact={pub_gruu:null,temp_gruu:null,uri:this._configuration.contact_uri,toString:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=e.anonymous||null,n=e.outbound||null,r="<";return r+=t?this.temp_gruu||"sip:anonymous@anonymous.invalid;transport=ws":this.pub_gruu||this.uri.toString(),!n||(t?this.temp_gruu:this.pub_gruu)||(r+=";ob"),r+=">"}};var r=["authorization_user","password","realm","ha1","authorization_jwt","display_name","register","extra_headers"];for(var o in this._configuration)Object.prototype.hasOwnProperty.call(this._configuration,o)&&(-1!==r.indexOf(o)?Object.defineProperty(this._configuration,o,{writable:!0,configurable:!1}):Object.defineProperty(this._configuration,o,{writable:!1,configurable:!1}));for(var i in A.debug("configuration parameters after validation:"),this._configuration)if(Object.prototype.hasOwnProperty.call(E.settings,i))switch(i){case"uri":case"registrar_server":A.debug("- ".concat(i,": ").concat(this._configuration[i]));break;case"password":case"ha1":case"authorization_jwt":A.debug("- ".concat(i,": NOT SHOWN"));break;default:A.debug("- ".concat(i,": ").concat(JSON.stringify(this._configuration[i])))}}}])&&o(n.prototype,r),i&&o(n,i),Object.defineProperty(n,"prototype",{writable:!1}),n;var n,r,i}()},{"./Config":1,"./Constants":2,"./Exceptions":6,"./Logger":9,"./Message":10,"./Options":12,"./Parser":13,"./RTCSession":14,"./Registrator":19,"./SIPMessage":21,"./Transactions":24,"./Transport":25,"./URI":27,"./Utils":28,"./sanityCheck":30,events:31}],27:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function o(e,t){var n="undefined"!=typeof Symbol&&e[Symbol.iterator]||e["@@iterator"];if(!n){if(Array.isArray(e)||(n=function(e,t){if(e){if("string"==typeof e)return i(e,t);var n={}.toString.call(e).slice(8,-1);return"Object"===n&&e.constructor&&(n=e.constructor.name),"Map"===n||"Set"===n?Array.from(e):"Arguments"===n||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)?i(e,t):void 0}}(e))||t&&e&&"number"==typeof e.length){n&&(e=n);var r=0,o=function(){};return{s:o,n:function(){return r>=e.length?{done:!0}:{done:!1,value:e[r++]}},e:function(e){throw e},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var s,l=!0,u=!1;return{s:function(){n=n.call(e)},n:function(){var e=n.next();return l=e.done,e},e:function(e){u=!0,s=e},f:function(){try{l||null==n.return||n.return()}finally{if(u)throw s}}}}function i(e,t){(null==t||t>e.length)&&(t=e.length);for(var n=0,r=Array(t);n<t;n++)r[n]=e[n];return r}function s(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,l(r.key),r)}}function l(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var o=n.call(e,t||"default");if("object"!=r(o))return o;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}var u=e("./Constants"),a=e("./Utils"),c=e("./Grammar");t.exports=function(){function e(t,n,r,o){var i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:{},s=arguments.length>5&&void 0!==arguments[5]?arguments[5]:{};if(function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),!r)throw new TypeError('missing or invalid "host" parameter');for(var l in this._parameters={},this._headers={},this._scheme=t||u.SIP,this._user=n,this._host=r,this._port=o,i)Object.prototype.hasOwnProperty.call(i,l)&&this.setParam(l,i[l]);for(var a in s)Object.prototype.hasOwnProperty.call(s,a)&&this.setHeader(a,s[a])}return t=e,r=[{key:"parse",value:function(e){return-1!==(e=c.parse(e,"SIP_URI"))?e:void 0}}],(n=[{key:"scheme",get:function(){return this._scheme},set:function(e){this._scheme=e.toLowerCase()}},{key:"user",get:function(){return this._user},set:function(e){this._user=e}},{key:"host",get:function(){return this._host},set:function(e){this._host=e.toLowerCase()}},{key:"port",get:function(){return this._port},set:function(e){this._port=0===e?e:parseInt(e,10)||null}},{key:"setParam",value:function(e,t){e&&(this._parameters[e.toLowerCase()]=null==t?null:t.toString())}},{key:"getParam",value:function(e){if(e)return this._parameters[e.toLowerCase()]}},{key:"hasParam",value:function(e){if(e)return!!this._parameters.hasOwnProperty(e.toLowerCase())}},{key:"deleteParam",value:function(e){if(e=e.toLowerCase(),this._parameters.hasOwnProperty(e)){var t=this._parameters[e];return delete this._parameters[e],t}}},{key:"clearParams",value:function(){this._parameters={}}},{key:"setHeader",value:function(e,t){this._headers[a.headerize(e)]=Array.isArray(t)?t:[t]}},{key:"getHeader",value:function(e){if(e)return this._headers[a.headerize(e)]}},{key:"hasHeader",value:function(e){if(e)return!!this._headers.hasOwnProperty(a.headerize(e))}},{key:"deleteHeader",value:function(e){if(e=a.headerize(e),this._headers.hasOwnProperty(e)){var t=this._headers[e];return delete this._headers[e],t}}},{key:"clearHeaders",value:function(){this._headers={}}},{key:"clone",value:function(){return new e(this._scheme,this._user,this._host,this._port,JSON.parse(JSON.stringify(this._parameters)),JSON.parse(JSON.stringify(this._headers)))}},{key:"toString",value:function(){var e=[],t="".concat(this._scheme,":");for(var n in this._user&&(t+="".concat(a.escapeUser(this._user),"@")),t+=this._host,(this._port||0===this._port)&&(t+=":".concat(this._port)),this._parameters)Object.prototype.hasOwnProperty.call(this._parameters,n)&&(t+=";".concat(n),null!==this._parameters[n]&&(t+="=".concat(this._parameters[n])));for(var r in this._headers)if(Object.prototype.hasOwnProperty.call(this._headers,r)){var 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%s %s":"")}},{name:"simulcast",reg:new RegExp("^simulcast:(send|recv) ([a-zA-Z0-9\\-_~;,]+)(?:\\s?(send|recv) ([a-zA-Z0-9\\-_~;,]+))?$"),names:["dir1","list1","dir2","list2"],format:function(e){return"simulcast:%s %s"+(e.dir2?" %s %s":"")}},{name:"simulcast_03",reg:/^simulcast:[\s\t]+([\S+\s\t]+)$/,names:["value"],format:"simulcast: %s"},{name:"framerate",reg:/^framerate:(\d+(?:$|\.\d+))/,format:"framerate:%s"},{name:"sourceFilter",reg:/^source-filter: *(excl|incl) (\S*) (IP4|IP6|\*) (\S*) (.*)/,names:["filterMode","netType","addressTypes","destAddress","srcList"],format:"source-filter: %s %s %s %s %s"},{name:"bundleOnly",reg:/^(bundle-only)/},{name:"label",reg:/^label:(.+)/,format:"label:%s"},{name:"sctpPort",reg:/^sctp-port:(\d+)$/,format:"sctp-port:%s"},{name:"maxMessageSize",reg:/^max-message-size:(\d+)$/,format:"max-message-size:%s"},{push:"tsRefClocks",reg:/^ts-refclk:([^\s=]*)(?:=(\S*))?/,names:["clksrc","clksrcExt"],format:function(e){return"ts-refclk:%s"+(null!=e.clksrcExt?"=%s":"")}},{name:"mediaClk",reg:/^mediaclk:(?:id=(\S*))? *([^\s=]*)(?:=(\S*))?(?: *rate=(\d+)\/(\d+))?/,names:["id","mediaClockName","mediaClockValue","rateNumerator","rateDenominator"],format:function(e){var t="mediaclk:";return t+=null!=e.id?"id=%s %s":"%v%s",t+=null!=e.mediaClockValue?"=%s":"",t+=null!=e.rateNumerator?" rate=%s":"",t+=null!=e.rateDenominator?"/%s":""}},{name:"keywords",reg:/^keywds:(.+)$/,format:"keywds:%s"},{name:"content",reg:/^content:(.+)/,format:"content:%s"},{name:"bfcpFloorCtrl",reg:/^floorctrl:(c-only|s-only|c-s)/,format:"floorctrl:%s"},{name:"bfcpConfId",reg:/^confid:(\d+)/,format:"confid:%s"},{name:"bfcpUserId",reg:/^userid:(\d+)/,format:"userid:%s"},{name:"bfcpFloorId",reg:/^floorid:(.+) (?:m-stream|mstrm):(.+)/,names:["id","mStream"],format:"floorid:%s mstrm:%s"},{push:"invalid",names:["value"]}]};Object.keys(r).forEach(function(e){r[e].forEach(function(e){e.reg||(e.reg=/(.*)/),e.format||(e.format="%s")})})},{}],37:[function(e,t,n){var r=e("./parser"),o=e("./writer"),i=e("./grammar");n.grammar=i,n.write=o,n.parse=r.parse,n.parseParams=r.parseParams,n.parseFmtpConfig=r.parseFmtpConfig,n.parsePayloads=r.parsePayloads,n.parseRemoteCandidates=r.parseRemoteCandidates,n.parseImageAttributes=r.parseImageAttributes,n.parseSimulcastStreamList=r.parseSimulcastStreamList},{"./grammar":36,"./parser":38,"./writer":39}],38:[function(e,t,n){var r=function(e){return String(Number(e))===e?Number(e):e},o=function(e,t,n){var o=e.name&&e.names;e.push&&!t[e.push]?t[e.push]=[]:o&&!t[e.name]&&(t[e.name]={});var i=e.push?{}:o?t[e.name]:t;!function(e,t,n,o){if(o&&!n)t[o]=r(e[1]);else for(var i=0;i<n.length;i+=1)null!=e[i+1]&&(t[n[i]]=r(e[i+1]))}(n.match(e.reg),i,e.names,e.name),e.push&&t[e.push].push(i)},i=e("./grammar"),s=RegExp.prototype.test.bind(/^([a-z])=(.*)/);n.parse=function(e){var t={},n=[],r=t;return e.split(/(\r\n|\r|\n)/).filter(s).forEach(function(e){var t=e[0],s=e.slice(2);"m"===t&&(n.push({rtp:[],fmtp:[]}),r=n[n.length-1]);for(var l=0;l<(i[t]||[]).length;l+=1){var u=i[t][l];if(u.reg.test(s))return o(u,r,s)}}),t.media=n,t};var l=function(e,t){var n=t.split(/=(.+)/,2);return 2===n.length?e[n[0]]=r(n[1]):1===n.length&&t.length>1&&(e[n[0]]=void 0),e};n.parseParams=function(e){return e.split(/;\s?/).reduce(l,{})},n.parseFmtpConfig=n.parseParams,n.parsePayloads=function(e){return e.toString().split(" ").map(Number)},n.parseRemoteCandidates=function(e){for(var t=[],n=e.split(" ").map(r),o=0;o<n.length;o+=3)t.push({component:n[o],ip:n[o+1],port:n[o+2]});return t},n.parseImageAttributes=function(e){return e.split(" ").map(function(e){return e.substring(1,e.length-1).split(",").reduce(l,{})})},n.parseSimulcastStreamList=function(e){return e.split(";").map(function(e){return e.split(",").map(function(e){var t,n=!1;return"~"!==e[0]?t=r(e):(t=r(e.substring(1,e.length)),n=!0),{scid:t,paused:n}})})}},{"./grammar":36}],39:[function(e,t,n){var r=e("./grammar"),o=/%[sdv%]/g,i=function(e,t,n){var r=[e+"="+(t.format instanceof Function?t.format(t.push?n:n[t.name]):t.format)];if(t.names)for(var i=0;i<t.names.length;i+=1){var s=t.names[i];t.name?r.push(n[t.name][s]):r.push(n[t.names[i]])}else r.push(n[t.name]);return function(e){var t=1,n=arguments,r=n.length;return e.replace(o,function(e){if(t>=r)return e;var o=n[t];switch(t+=1,e){case"%%":return"%";case"%s":return String(o);case"%d":return Number(o);case"%v":return""}})}.apply(null,r)},s=["v","o","s","i","u","e","p","c","b","t","r","z","a"],l=["i","c","b","a"];t.exports=function(e,t){t=t||{},null==e.version&&(e.version=0),null==e.name&&(e.name=" "),e.media.forEach(function(e){null==e.payloads&&(e.payloads="")});var n=t.outerOrder||s,o=t.innerOrder||l,u=[];return n.forEach(function(t){r[t].forEach(function(n){n.name in e&&null!=e[n.name]?u.push(i(t,n,e)):n.push in 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(https://inakibaz.me)"],types:"lib/JsSIP.d.ts",main:"lib-es5/JsSIP.js",keywords:["sip","websocket","webrtc","node","browser","library"],license:"MIT",repository:{type:"git",url:"https://github.com/versatica/JsSIP.git"},bugs:{url:"https://github.com/versatica/JsSIP/issues"},dependencies:{"@types/events":"^3.0.0","@types/debug":"^4.1.7",debug:"^4.3.1",events:"^3.3.0","sdp-transform":"^2.14.1"},devDependencies:{"@babel/core":"^7.19.6","@babel/preset-env":"^7.19.4","ansi-colors":"^3.2.4",browserify:"^16.5.1",eslint:"^5.16.0","fancy-log":"^1.3.3",gulp:"^4.0.2","gulp-babel":"^8.0.0","gulp-eslint":"^5.0.0","gulp-expect-file":"^1.0.2","gulp-header":"^2.0.9","gulp-nodeunit-runner":"^0.2.2","gulp-plumber":"^1.2.1","gulp-rename":"^1.4.0","gulp-uglify-es":"^1.0.4",pegjs:"^0.7.0","vinyl-buffer":"^1.0.1","vinyl-source-stream":"^2.0.0"},scripts:{lint:"node npm-scripts.js lint",test:"node npm-scripts.js test",prepublish:"node npm-scripts.js prepublish",release:"node npm-scripts.js 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o=e("./Utils"),s=e("./Constants"),l=e("./Grammar"),u=e("./URI"),a=e("./Socket"),c=e("./Exceptions");n.settings={authorization_user:null,password:null,realm:null,ha1:null,authorization_jwt:null,display_name:null,uri:null,contact_uri:null,instance_id:null,use_preloaded_route:!1,session_timers:!0,session_timers_refresh_method:s.UPDATE,session_timers_force_refresher:!1,no_answer_timeout:60,register:!0,register_expires:600,register_from_tag_trail:"",registrar_server:null,sockets:null,connection_recovery_max_interval:s.CONNECTION_RECOVERY_MAX_INTERVAL,connection_recovery_min_interval:s.CONNECTION_RECOVERY_MIN_INTERVAL,extra_headers:null,via_host:"".concat(o.createRandomToken(12),".invalid")};var f={mandatory:{sockets:function(e){var t=[];if(a.isSocket(e))t.push({socket:e});else{if(!Array.isArray(e)||!e.length)return;var n,i=r(e);try{for(i.s();!(n=i.n()).done;){var o=n.value;Object.prototype.hasOwnProperty.call(o,"socket")&&a.isSocket(o.socket)?t.push(o):a.isSocket(o)&&t.push({socket:o})}}catch(e){i.e(e)}finally{i.f()}}return t},uri:function(e){/^sip:/i.test(e)||(e="".concat(s.SIP,":").concat(e));var t=u.parse(e);return t&&t.user?t:void 0}},optional:{authorization_user:function(e){return-1===l.parse('"'.concat(e,'"'),"quoted_string")?void 0:e},authorization_jwt:function(e){if("string"==typeof e)return e},user_agent:function(e){if("string"==typeof e)return e},connection_recovery_max_interval:function(e){if(o.isDecimal(e)){var t=Number(e);if(t>0)return t}},connection_recovery_min_interval:function(e){if(o.isDecimal(e)){var t=Number(e);if(t>0)return t}},contact_uri:function(e){if("string"==typeof e){var t=l.parse(e,"SIP_URI");if(-1!==t)return t}},display_name:function(e){return e},instance_id:function(e){return/^uuid:/i.test(e)&&(e=e.substr(5)),-1===l.parse(e,"uuid")?void 0:e},no_answer_timeout:function(e){if(o.isDecimal(e)){var t=Number(e);if(t>0)return t}},session_timers:function(e){if("boolean"==typeof e)return e},session_timers_refresh_method:function(e){if("string"==typeof e&&((e=e.toUpperCase())===s.INVITE||e===s.UPDATE))return e},session_timers_force_refresher:function(e){if("boolean"==typeof e)return e},password:function(e){return String(e)},realm:function(e){return String(e)},ha1:function(e){return String(e)},register:function(e){if("boolean"==typeof e)return e},register_expires:function(e){if(o.isDecimal(e)){var t=Number(e);if(t>0)return t}},register_from_tag_trail:function(e){return"function"==typeof e?e:String(e)},registrar_server:function(e){/^sip:/i.test(e)||(e="".concat(s.SIP,":").concat(e));var t=u.parse(e);return t?t.user?void 0:t:void 0},use_preloaded_route:function(e){if("boolean"==typeof e)return e},extra_headers:function(e){var t=[];if(Array.isArray(e)&&e.length){var n,i=r(e);try{for(i.s();!(n=i.n()).done;){var o=n.value;"string"==typeof o&&t.push(o)}}catch(e){i.e(e)}finally{i.f()}return 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Temporarily",305:"Use Proxy",380:"Alternative Service",400:"Bad Request",401:"Unauthorized",402:"Payment Required",403:"Forbidden",404:"Not Found",405:"Method Not Allowed",406:"Not Acceptable",407:"Proxy Authentication Required",408:"Request Timeout",410:"Gone",412:"Conditional Request Failed",413:"Request Entity Too Large",414:"Request-URI Too Long",415:"Unsupported Media Type",416:"Unsupported URI Scheme",417:"Unknown Resource-Priority",420:"Bad Extension",421:"Extension Required",422:"Session Interval Too Small",423:"Interval Too Brief",424:"Bad Location Information",428:"Use Identity Header",429:"Provide Referrer Identity",430:"Flow Failed",433:"Anonymity Disallowed",436:"Bad Identity-Info",437:"Unsupported Certificate",438:"Invalid Identity Header",439:"First Hop Lacks Outbound Support",440:"Max-Breadth Exceeded",469:"Bad Info Package",470:"Consent Needed",478:"Unresolvable Destination",480:"Temporarily Unavailable",481:"Call/Transaction Does Not Exist",482:"Loop 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Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function i(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,o(r.key),r)}}function o(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var i=n.call(e,t||"default");if("object"!=r(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}var s=e("./Logger"),l=e("./SIPMessage"),u=e("./Constants"),a=e("./Transactions"),c=e("./Dialog/RequestSender"),f=e("./Utils"),h=new s("Dialog"),d={STATUS_EARLY:1,STATUS_CONFIRMED:2,STATUS_TERMINATED:3};t.exports=function(){return e=function e(t,n,r){var i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:d.STATUS_CONFIRMED;if(function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this._owner=t,this._ua=t._ua,this._uac_pending_reply=!1,this._uas_pending_reply=!1,!n.hasHeader("contact"))return{error:"unable to create a Dialog without Contact header field"};n instanceof l.IncomingResponse&&(i=n.status_code<200?d.STATUS_EARLY:d.STATUS_CONFIRMED);var o=n.parseHeader("contact");"UAS"===r?(this._id={call_id:n.call_id,local_tag:n.to_tag,remote_tag:n.from_tag,toString:function(){return this.call_id+this.local_tag+this.remote_tag}},this._state=i,this._remote_seqnum=n.cseq,this._local_uri=n.parseHeader("to").uri,this._remote_uri=n.parseHeader("from").uri,this._remote_target=o.uri,this._route_set=n.getHeaders("record-route"),this._ack_seqnum=this._remote_seqnum):"UAC"===r&&(this._id={call_id:n.call_id,local_tag:n.from_tag,remote_tag:n.to_tag,toString:function(){return this.call_id+this.local_tag+this.remote_tag}},this._state=i,this._local_seqnum=n.cseq,this._local_uri=n.parseHeader("from").uri,this._remote_uri=n.parseHeader("to").uri,this._remote_target=o.uri,this._route_set=n.getHeaders("record-route").reverse(),this._ack_seqnum=null),this._ua.newDialog(this),h.debug("new ".concat(r," dialog created with status ").concat(this._state===d.STATUS_EARLY?"EARLY":"CONFIRMED"))},n=[{key:"C",get:function(){return d}}],(t=[{key:"id",get:function(){return this._id}},{key:"local_seqnum",get:function(){return this._local_seqnum},set:function(e){this._local_seqnum=e}},{key:"owner",get:function(){return this._owner}},{key:"uac_pending_reply",get:function(){return this._uac_pending_reply},set:function(e){this._uac_pending_reply=e}},{key:"uas_pending_reply",get:function(){return this._uas_pending_reply}},{key:"isTerminated",value:function(){return this._status===d.STATUS_TERMINATED}},{key:"update",value:function(e,t){this._state=d.STATUS_CONFIRMED,h.debug("dialog ".concat(this._id.toString(),"  changed to CONFIRMED state")),"UAC"===t&&(this._route_set=e.getHeaders("record-route").reverse())}},{key:"terminate",value:function(){h.debug("dialog ".concat(this._id.toString()," deleted")),this._ua.destroyDialog(this),this._state=d.STATUS_TERMINATED}},{key:"sendRequest",value:function(e){var t=this,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},r=f.cloneArray(n.extraHeaders),i=f.cloneObject(n.eventHandlers),o=n.body||null,s=this._createRequest(e,r,o);return i.onAuthenticated=function(){t._local_seqnum+=1},new c(this,s,i).send(),s}},{key:"receiveRequest",value:function(e){this._checkInDialogRequest(e)&&(e.method===u.ACK&&null!==this._ack_seqnum?this._ack_seqnum=null:e.method===u.INVITE&&(this._ack_seqnum=e.cseq),this._owner.receiveRequest(e))}},{key:"_createRequest",value:function(e,t,n){t=f.cloneArray(t),this._local_seqnum||(this._local_seqnum=Math.floor(1e4*Math.random()));var r=e===u.CANCEL||e===u.ACK?this._local_seqnum:this._local_seqnum+=1;return new l.OutgoingRequest(e,this._remote_target,this._ua,{cseq:r,call_id:this._id.call_id,from_uri:this._local_uri,from_tag:this._id.local_tag,to_uri:this._remote_uri,to_tag:this._id.remote_tag,route_set:this._route_set},t,n)}},{key:"_checkInDialogRequest",value:function(e){var t=this;if(this._remote_seqnum)if(e.cseq<this._remote_seqnum){if(e.method!==u.ACK)return e.reply(500),!1;if(null===this._ack_seqnum||e.cseq!==this._ack_seqnum)return!1}else e.cseq>this._remote_seqnum&&(this._remote_seqnum=e.cseq);else this._remote_seqnum=e.cseq;if(e.method===u.INVITE||e.method===u.UPDATE&&e.body){if(!0===this._uac_pending_reply)e.reply(491);else{if(!0===this._uas_pending_reply){var n=1+(10*Math.random()|0);return e.reply(500,null,["Retry-After:".concat(n)]),!1}this._uas_pending_reply=!0;var r=function(){e.server_transaction.state!==a.C.STATUS_ACCEPTED&&e.server_transaction.state!==a.C.STATUS_COMPLETED&&e.server_transaction.state!==a.C.STATUS_TERMINATED||(e.server_transaction.removeListener("stateChanged",r),t._uas_pending_reply=!1)};e.server_transaction.on("stateChanged",r)}e.hasHeader("contact")&&e.server_transaction.on("stateChanged",function(){e.server_transaction.state===a.C.STATUS_ACCEPTED&&(t._remote_target=e.parseHeader("contact").uri)})}else e.method===u.NOTIFY&&e.hasHeader("contact")&&e.server_transaction.on("stateChanged",function(){e.server_transaction.state===a.C.STATUS_COMPLETED&&(t._remote_target=e.parseHeader("contact").uri)});return!0}}])&&i(e.prototype,t),n&&i(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e;var e,t,n}()},{"./Constants":2,"./Dialog/RequestSender":4,"./Logger":9,"./SIPMessage":21,"./Transactions":24,"./Utils":28}],4:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function i(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,o(r.key),r)}}function o(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var i=n.call(e,t||"default");if("object"!=r(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}var s=e("../Constants"),l=e("../Transactions"),u=e("../RequestSender"),a={onRequestTimeout:function(){},onTransportError:function(){},onSuccessResponse:function(){},onErrorResponse:function(){},onAuthenticated:function(){},onDialogError:function(){}};t.exports=function(){return e=function e(t,n,r){for(var i in function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this._dialog=t,this._ua=t._ua,this._request=n,this._eventHandlers=r,this._reattempt=!1,this._reattemptTimer=null,a)Object.prototype.hasOwnProperty.call(a,i)&&(this._eventHandlers[i]||(this._eventHandlers[i]=a[i]))},(t=[{key:"request",get:function(){return this._request}},{key:"send",value:function(){var e=this,t=new u(this._ua,this._request,{onRequestTimeout:function(){e._eventHandlers.onRequestTimeout()},onTransportError:function(){e._eventHandlers.onTransportError()},onAuthenticated:function(t){e._eventHandlers.onAuthenticated(t)},onReceiveResponse:function(t){e._receiveResponse(t)}});if(t.send(),(this._request.method===s.INVITE||this._request.method===s.UPDATE&&this._request.body)&&t.clientTransaction.state!==l.C.STATUS_TERMINATED){this._dialog.uac_pending_reply=!0;var n=function(){t.clientTransaction.state!==l.C.STATUS_ACCEPTED&&t.clientTransaction.state!==l.C.STATUS_COMPLETED&&t.clientTransaction.state!==l.C.STATUS_TERMINATED||(t.clientTransaction.removeListener("stateChanged",n),e._dialog.uac_pending_reply=!1)};t.clientTransaction.on("stateChanged",n)}}},{key:"_receiveResponse",value:function(e){var t=this;408===e.status_code||481===e.status_code?this._eventHandlers.onDialogError(e):e.method===s.INVITE&&491===e.status_code?this._reattempt?e.status_code>=200&&e.status_code<300?this._eventHandlers.onSuccessResponse(e):e.status_code>=300&&this._eventHandlers.onErrorResponse(e):(this._request.cseq=this._dialog.local_seqnum+=1,this._reattemptTimer=setTimeout(function(){t._dialog.isTerminated()||(t._reattempt=!0,t.send())},1e3)):e.status_code>=200&&e.status_code<300?this._eventHandlers.onSuccessResponse(e):e.status_code>=300&&this._eventHandlers.onErrorResponse(e)}}])&&i(e.prototype,t),n&&i(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e;var e,t,n}()},{"../Constants":2,"../RequestSender":20,"../Transactions":24}],5:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function i(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,o(r.key),r)}}function o(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var i=n.call(e,t||"default");if("object"!=r(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}var s=e("./Logger"),l=e("./Utils"),u=new s("DigestAuthentication");t.exports=function(){return e=function e(t){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this._credentials=t,this._cnonce=null,this._nc=0,this._ncHex="00000000",this._algorithm=null,this._realm=null,this._nonce=null,this._opaque=null,this._stale=null,this._qop=null,this._method=null,this._uri=null,this._ha1=null,this._response=null},(t=[{key:"get",value:function(e){switch(e){case"realm":return this._realm;case"ha1":return this._ha1;default:return void u.warn('get() | cannot get "%s" parameter',e)}}},{key:"authenticate",value:function(e,t){var n=e.method,r=e.ruri,i=e.body,o=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(this._algorithm=t.algorithm,this._realm=t.realm,this._nonce=t.nonce,this._opaque=t.opaque,this._stale=t.stale,this._algorithm){if("MD5"!==this._algorithm)return u.warn('authenticate() | challenge with Digest algorithm different than "MD5", authentication aborted'),!1}else this._algorithm="MD5";if(!this._nonce)return u.warn("authenticate() | challenge without Digest nonce, authentication aborted"),!1;if(!this._realm)return u.warn("authenticate() | challenge without Digest realm, authentication aborted"),!1;if(!this._credentials.password){if(!this._credentials.ha1)return u.warn("authenticate() | no plain SIP password nor ha1 provided, authentication aborted"),!1;if(this._credentials.realm!==this._realm)return u.warn('authenticate() | no plain SIP password, and stored `realm` does not match the given `realm`, cannot authenticate [stored:"%s", given:"%s"]',this._credentials.realm,this._realm),!1}if(t.qop)if(t.qop.indexOf("auth-int")>-1)this._qop="auth-int";else{if(!(t.qop.indexOf("auth")>-1))return u.warn('authenticate() | challenge without Digest qop different than "auth" or "auth-int", authentication aborted'),!1;this._qop="auth"}else this._qop=null;this._method=n,this._uri=r,this._cnonce=o||l.createRandomToken(12),this._nc+=1;var s,a,c=Number(this._nc).toString(16);return this._ncHex="00000000".substr(0,8-c.length)+c,4294967296===this._nc&&(this._nc=1,this._ncHex="00000001"),this._credentials.password?this._ha1=l.calculateMD5("".concat(this._credentials.username,":").concat(this._realm,":").concat(this._credentials.password)):this._ha1=this._credentials.ha1,"auth"===this._qop?(s="".concat(this._method,":").concat(this._uri),a=l.calculateMD5(s),u.debug('authenticate() | using qop=auth [a2:"%s"]',s),this._response=l.calculateMD5("".concat(this._ha1,":").concat(this._nonce,":").concat(this._ncHex,":").concat(this._cnonce,":auth:").concat(a))):"auth-int"===this._qop?(s="".concat(this._method,":").concat(this._uri,":").concat(l.calculateMD5(i||"")),a=l.calculateMD5(s),u.debug('authenticate() | using qop=auth-int [a2:"%s"]',s),this._response=l.calculateMD5("".concat(this._ha1,":").concat(this._nonce,":").concat(this._ncHex,":").concat(this._cnonce,":auth-int:").concat(a))):null===this._qop&&(s="".concat(this._method,":").concat(this._uri),a=l.calculateMD5(s),u.debug('authenticate() | using qop=null [a2:"%s"]',s),this._response=l.calculateMD5("".concat(this._ha1,":").concat(this._nonce,":").concat(a))),u.debug("authenticate() | response generated"),!0}},{key:"toString",value:function(){var e=[];if(!this._response)throw new Error("response field does not exist, cannot generate Authorization header");return e.push("algorithm=".concat(this._algorithm)),e.push('username="'.concat(this._credentials.username,'"')),e.push('realm="'.concat(this._realm,'"')),e.push('nonce="'.concat(this._nonce,'"')),e.push('uri="'.concat(this._uri,'"')),e.push('response="'.concat(this._response,'"')),this._opaque&&e.push('opaque="'.concat(this._opaque,'"')),this._qop&&(e.push("qop=".concat(this._qop)),e.push('cnonce="'.concat(this._cnonce,'"')),e.push("nc=".concat(this._ncHex))),"Digest ".concat(e.join(", "))}}])&&i(e.prototype,t),n&&i(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e;var e,t,n}()},{"./Logger":9,"./Utils":28}],6:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function i(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,s(r.key),r)}}function o(e,t,n){return t&&i(e.prototype,t),n&&i(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e}function s(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var i=n.call(e,t||"default");if("object"!=r(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}function l(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function u(e,t,n){return t=d(t),function(e,t){if(t&&("object"==r(t)||"function"==typeof t))return t;if(void 0!==t)throw new TypeError("Derived constructors may only return object or undefined");return function(e){if(void 0===e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return e}(e)}(e,f()?Reflect.construct(t,n||[],d(e).constructor):t.apply(e,n))}function a(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function");e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,writable:!0,configurable:!0}}),Object.defineProperty(e,"prototype",{writable:!1}),t&&h(e,t)}function c(e){var t="function"==typeof Map?new Map:void 0;return(c=function(e){if(null===e||!function(e){try{return-1!==Function.toString.call(e).indexOf("[native code]")}catch(t){return"function"==typeof e}}(e))return e;if("function"!=typeof e)throw new TypeError("Super expression must either be null or a function");if(void 0!==t){if(t.has(e))return t.get(e);t.set(e,n)}function n(){return function(e,t,n){if(f())return Reflect.construct.apply(null,arguments);var r=[null];r.push.apply(r,t);var i=new(e.bind.apply(e,r));return n&&h(i,n.prototype),i}(e,arguments,d(this).constructor)}return n.prototype=Object.create(e.prototype,{constructor:{value:n,enumerable:!1,writable:!0,configurable:!0}}),h(n,e)})(e)}function f(){try{var e=!Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){}))}catch(e){}return(f=function(){return!!e})()}function h(e,t){return(h=Object.setPrototypeOf?Object.setPrototypeOf.bind():function(e,t){return e.__proto__=t,e})(e,t)}function d(e){return(d=Object.setPrototypeOf?Object.getPrototypeOf.bind():function(e){return e.__proto__||Object.getPrototypeOf(e)})(e)}var _=function(e){function t(e,n){var r;return l(this,t),(r=u(this,t)).code=1,r.name="CONFIGURATION_ERROR",r.parameter=e,r.value=n,r.message=r.value?"Invalid value ".concat(JSON.stringify(r.value),' for parameter "').concat(r.parameter,'"'):"Missing parameter: ".concat(r.parameter),r}return a(t,c(Error)),o(t)}(),p=function(e){function t(e){var n;return l(this,t),(n=u(this,t)).code=2,n.name="INVALID_STATE_ERROR",n.status=e,n.message="Invalid status: ".concat(e),n}return a(t,c(Error)),o(t)}(),m=function(e){function t(e){var n;return l(this,t),(n=u(this,t)).code=3,n.name="NOT_SUPPORTED_ERROR",n.message=e,n}return 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t=d.sipErrorCause(e.status_code);this._failed("remote",e,t)}}},{key:"_onRequestTimeout",value:function(){this._closed||this._failed("system",null,f.causes.REQUEST_TIMEOUT)}},{key:"_onTransportError",value:function(){this._closed||this._failed("system",null,f.causes.CONNECTION_ERROR)}},{key:"_close",value:function(){this._closed=!0,this._ua.destroyMessage(this)}},{key:"_newMessage",value:function(e,t){"remote"===e?(this._direction="incoming",this._local_identity=t.to,this._remote_identity=t.from):"local"===e&&(this._direction="outgoing",this._local_identity=t.from,this._remote_identity=t.to),this._ua.newMessage(this,{originator:e,message:this,request:t})}},{key:"_failed",value:function(e,t,n){v.debug("MESSAGE failed"),this._close(),v.debug('emit "failed"'),this.emit("failed",{originator:e,response:t||null,cause:n})}},{key:"_succeeded",value:function(e,t){v.debug("MESSAGE succeeded"),this._close(),v.debug('emit 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o=d.cloneArray(r.extraHeaders),s=d.cloneObject(r.eventHandlers),l=r.contentType||"application/sdp";for(var u in s)Object.prototype.hasOwnProperty.call(s,u)&&this.on(u,s[u]);o.push("Content-Type: ".concat(l)),this._request=new h.OutgoingRequest(f.OPTIONS,e,this._ua,null,o),t&&(this._request.body=t);var a=new _(this._ua,this._request,{onRequestTimeout:function(){n._onRequestTimeout()},onTransportError:function(){n._onTransportError()},onReceiveResponse:function(e){n._receiveResponse(e)}});this._newOptions("local",this._request),a.send()}},{key:"init_incoming",value:function(e){this._request=e,this._newOptions("remote",e),this._is_replied||(this._is_replied=!0,e.reply(200)),this._close()}},{key:"accept",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=d.cloneArray(e.extraHeaders),n=e.body;if("incoming"!==this._direction)throw new p.NotSupportedError('"accept" not supported for outgoing Options');if(this._is_replied)throw new Error("incoming Options 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t=d.sipErrorCause(e.status_code);this._failed("remote",e,t)}}},{key:"_onRequestTimeout",value:function(){this._closed||this._failed("system",null,f.causes.REQUEST_TIMEOUT)}},{key:"_onTransportError",value:function(){this._closed||this._failed("system",null,f.causes.CONNECTION_ERROR)}},{key:"_close",value:function(){this._closed=!0,this._ua.destroyMessage(this)}},{key:"_newOptions",value:function(e,t){"remote"===e?(this._direction="incoming",this._local_identity=t.to,this._remote_identity=t.from):"local"===e&&(this._direction="outgoing",this._local_identity=t.from,this._remote_identity=t.to),this._ua.newOptions(this,{originator:e,message:this,request:t})}},{key:"_failed",value:function(e,t,n){m.debug("OPTIONS failed"),this._close(),m.debug('emit "failed"'),this.emit("failed",{originator:e,response:t||null,cause:n})}},{key:"_succeeded",value:function(e,t){m.debug("OPTIONS succeeded"),this._close(),m.debug('emit 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function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function");e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,writable:!0,configurable:!0}}),Object.defineProperty(e,"prototype",{writable:!1}),t&&c(e,t)}(t,f),n=t,o=[{key:"C",get:function(){return I}}],(r=[{key:"C",get:function(){return I}},{key:"causes",get:function(){return _.causes}},{key:"id",get:function(){return this._id}},{key:"connection",get:function(){return this._connection}},{key:"contact",get:function(){return this._contact}},{key:"direction",get:function(){return this._direction}},{key:"local_identity",get:function(){return this._local_identity}},{key:"remote_identity",get:function(){return this._remote_identity}},{key:"start_time",get:function(){return this._start_time}},{key:"end_time",get:function(){return this._end_time}},{key:"data",get:function(){return this._data},set:function(e){this._data=e}},{key:"status",get:function(){return 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r=e,i=v.cloneObject(t.eventHandlers),o=v.cloneArray(t.extraHeaders),s=v.cloneObject(t.mediaConstraints,{audio:!0,video:!0}),l=t.mediaStream||null,u=v.cloneObject(t.pcConfig,{iceServers:[]}),a=t.rtcConstraints||null,c=t.rtcOfferConstraints||null;if(this._rtcOfferConstraints=c,this._rtcAnswerConstraints=t.rtcAnswerConstraints||null,this._data=t.data||this._data,void 0===e)throw new TypeError("Not enough arguments");if(this._status!==I.STATUS_NULL)throw new p.InvalidStateError(this._status);if(!window.RTCPeerConnection)throw new p.NotSupportedError("WebRTC not supported");if(!(e=this._ua.normalizeTarget(e)))throw new TypeError("Invalid target: ".concat(r));for(var f in this._sessionTimers.enabled&&v.isDecimal(t.sessionTimersExpires)&&(t.sessionTimersExpires>=_.MIN_SESSION_EXPIRES?this._sessionTimers.defaultExpires=t.sessionTimersExpires:this._sessionTimers.defaultExpires=_.SESSION_EXPIRES),i)Object.prototype.hasOwnProperty.call(i,f)&&this.on(f,i[f]);this._from_tag=v.newTag();var h=t.anonymous||!1,d={from_tag:this._from_tag};this._contact=this._ua.contact.toString({anonymous:h,outbound:!0}),h?(d.from_display_name="Anonymous",d.from_uri=new w("sip","anonymous","anonymous.invalid"),o.push("P-Preferred-Identity: ".concat(this._ua.configuration.uri.toString())),o.push("Privacy: id")):t.fromUserName&&(d.from_uri=new w("sip",t.fromUserName,this._ua.configuration.uri.host),o.push("P-Preferred-Identity: ".concat(this._ua.configuration.uri.toString()))),t.fromDisplayName&&(d.from_display_name=t.fromDisplayName),o.push("Contact: ".concat(this._contact)),o.push("Content-Type: application/sdp"),this._sessionTimers.enabled&&o.push("Session-Expires: ".concat(this._sessionTimers.defaultExpires).concat(this._ua.configuration.session_timers_force_refresher?";refresher=uac":"")),this._request=new y.InitialOutgoingInviteRequest(e,this._ua,d,o),this._id=this._request.call_id+this._from_tag,this._createRTCConnection(u,a),this._direction="outgoing",this._local_identity=this._request.from,this._remote_identity=this._request.to,n&&n(this),this._newRTCSession("local",this._request),this._sendInitialRequest(s,c,l)}},{key:"init_incoming",value:function(e,t){var n,r=this;R.debug("init_incoming()");var i=e.hasHeader("Content-Type")?e.getHeader("Content-Type").toLowerCase():void 0;e.body&&"application/sdp"!==i?e.reply(415):(this._status=I.STATUS_INVITE_RECEIVED,this._from_tag=e.from_tag,this._id=e.call_id+this._from_tag,this._request=e,this._contact=this._ua.contact.toString(),e.hasHeader("expires")&&(n=1e3*e.getHeader("expires")),e.to_tag=v.newTag(),this._createDialog(e,"UAS",!0)?(e.body?this._late_sdp=!1:this._late_sdp=!0,this._status=I.STATUS_WAITING_FOR_ANSWER,this._timers.userNoAnswerTimer=setTimeout(function(){e.reply(408),r._failed("local",null,_.causes.NO_ANSWER)},this._ua.configuration.no_answer_timeout),n&&(this._timers.expiresTimer=setTimeout(function(){r._status===I.STATUS_WAITING_FOR_ANSWER&&(e.reply(487),r._failed("system",null,_.causes.EXPIRES))},n)),this._direction="incoming",this._local_identity=e.to,this._remote_identity=e.from,t&&t(this),this._newRTCSession("remote",e),this._status!==I.STATUS_TERMINATED&&(e.reply(180,null,["Contact: ".concat(this._contact)]),this._progress("local",null))):e.reply(500,"Missing Contact header field"))}},{key:"answer",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};R.debug("answer()");var n=this._request,r=v.cloneArray(t.extraHeaders),o=v.cloneObject(t.mediaConstraints),s=t.mediaStream||null,l=v.cloneObject(t.pcConfig,{iceServers:[]}),u=t.rtcConstraints||null,a=t.rtcAnswerConstraints||null,c=v.cloneObject(t.rtcOfferConstraints),f=!1,h=!1,d=!1,m=!1;if(this._rtcAnswerConstraints=a,this._rtcOfferConstraints=t.rtcOfferConstraints||null,this._data=t.data||this._data,"incoming"!==this._direction)throw new p.NotSupportedError('"answer" not supported for outgoing RTCSession');if(this._status!==I.STATUS_WAITING_FOR_ANSWER)throw new p.InvalidStateError(this._status);if(this._sessionTimers.enabled&&v.isDecimal(t.sessionTimersExpires)&&(t.sessionTimersExpires>=_.MIN_SESSION_EXPIRES?this._sessionTimers.defaultExpires=t.sessionTimersExpires:this._sessionTimers.defaultExpires=_.SESSION_EXPIRES),this._status=I.STATUS_ANSWERED,this._createDialog(n,"UAS")){clearTimeout(this._timers.userNoAnswerTimer),r.unshift("Contact: ".concat(this._contact));var g=n.parseSDP();Array.isArray(g.media)||(g.media=[g.media]);var y,T=i(g.media);try{for(T.s();!(y=T.n()).done;){var b=y.value;"audio"===b.type&&(f=!0,b.direction&&"sendrecv"!==b.direction||(d=!0)),"video"===b.type&&(h=!0,b.direction&&"sendrecv"!==b.direction||(m=!0))}}catch(e){T.e(e)}finally{T.f()}if(s&&!1===o.audio){var S,C=i(s.getAudioTracks());try{for(C.s();!(S=C.n()).done;){var E=S.value;s.removeTrack(E)}}catch(e){C.e(e)}finally{C.f()}}if(s&&!1===o.video){var A,w=i(s.getVideoTracks());try{for(w.s();!(A=w.n()).done;){var O=A.value;s.removeTrack(O)}}catch(e){w.e(e)}finally{w.f()}}s||void 0!==o.audio||(o.audio=d),s||void 0!==o.video||(o.video=m),s||f||c.offerToReceiveAudio||(o.audio=!1),s||h||c.offerToReceiveVideo||(o.video=!1),this._createRTCConnection(l,u),Promise.resolve().then(function(){return s||(o.audio||o.video?(e._localMediaStreamLocallyGenerated=!0,navigator.mediaDevices.getUserMedia(o).catch(function(t){if(e._status===I.STATUS_TERMINATED)throw new Error("terminated");throw n.reply(480),e._failed("local",null,_.causes.USER_DENIED_MEDIA_ACCESS),R.warn('emit "getusermediafailed" [error:%o]',t),e.emit("getusermediafailed",t),new Error("getUserMedia() failed")})):void 0)}).then(function(t){if(e._status===I.STATUS_TERMINATED)throw new Error("terminated");e._localMediaStream=t,t&&t.getTracks().forEach(function(n){e._connection.addTrack(n,t)})}).then(function(){if(!e._late_sdp){var t={originator:"remote",type:"offer",sdp:n.body};R.debug('emit "sdp"'),e.emit("sdp",t);var r=new RTCSessionDescription({type:"offer",sdp:t.sdp});return e._connectionPromiseQueue=e._connectionPromiseQueue.then(function(){return e._connection.setRemoteDescription(r)}).catch(function(t){throw n.reply(488),e._failed("system",null,_.causes.WEBRTC_ERROR),R.warn('emit "peerconnection:setremotedescriptionfailed" [error:%o]',t),e.emit("peerconnection:setremotedescriptionfailed",t),new Error("peerconnection.setRemoteDescription() failed")}),e._connectionPromiseQueue}}).then(function(){if(e._status===I.STATUS_TERMINATED)throw new Error("terminated");return e._connecting(n),e._late_sdp?e._createLocalDescription("offer",e._rtcOfferConstraints).catch(function(){throw n.reply(500),new Error("_createLocalDescription() failed")}):e._createLocalDescription("answer",a).catch(function(){throw n.reply(500),new Error("_createLocalDescription() failed")})}).then(function(t){if(e._status===I.STATUS_TERMINATED)throw new Error("terminated");e._handleSessionTimersInIncomingRequest(n,r),n.reply(200,null,r,t,function(){e._status=I.STATUS_WAITING_FOR_ACK,e._setInvite2xxTimer(n,t),e._setACKTimer(),e._accepted("local")},function(){e._failed("system",null,_.causes.CONNECTION_ERROR)})}).catch(function(t){e._status!==I.STATUS_TERMINATED&&R.warn(t)})}else n.reply(500,"Error creating dialog")}},{key:"terminate",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};R.debug("terminate()");var n,r=t.cause||_.causes.BYE,i=v.cloneArray(t.extraHeaders),o=t.body,s=t.status_code,l=t.reason_phrase;if(this._status===I.STATUS_TERMINATED)throw new p.InvalidStateError(this._status);switch(this._status){case I.STATUS_NULL:case I.STATUS_INVITE_SENT:case I.STATUS_1XX_RECEIVED:if(R.debug("canceling session"),s&&(s<200||s>=700))throw new TypeError("Invalid status_code: ".concat(s));s&&(l=l||_.REASON_PHRASE[s]||"",n="SIP ;cause=".concat(s,' ;text="').concat(l,'"')),this._status===I.STATUS_NULL||this._status===I.STATUS_INVITE_SENT?(this._is_canceled=!0,this._cancel_reason=n):this._status===I.STATUS_1XX_RECEIVED&&this._request.cancel(n),this._status=I.STATUS_CANCELED,this._failed("local",null,_.causes.CANCELED);break;case I.STATUS_WAITING_FOR_ANSWER:case I.STATUS_ANSWERED:if(R.debug("rejecting session"),(s=s||480)<300||s>=700)throw new TypeError("Invalid status_code: ".concat(s));this._request.reply(s,l,i,o),this._failed("local",null,_.causes.REJECTED);break;case I.STATUS_WAITING_FOR_ACK:case I.STATUS_CONFIRMED:if(R.debug("terminating session"),l=t.reason_phrase||_.REASON_PHRASE[s]||"",s&&(s<200||s>=700))throw new TypeError("Invalid status_code: ".concat(s));if(s&&i.push("Reason: SIP ;cause=".concat(s,'; text="').concat(l,'"')),this._status===I.STATUS_WAITING_FOR_ACK&&"incoming"===this._direction&&this._request.server_transaction.state!==m.C.STATUS_TERMINATED){var u=this._dialog;this.receiveRequest=function(t){t.method===_.ACK&&(e.sendRequest(_.BYE,{extraHeaders:i,body:o}),u.terminate())},this._request.server_transaction.on("stateChanged",function(){e._request.server_transaction.state===m.C.STATUS_TERMINATED&&(e.sendRequest(_.BYE,{extraHeaders:i,body:o}),u.terminate())}),this._ended("local",null,r),this._dialog=u,this._ua.newDialog(u)}else this.sendRequest(_.BYE,{extraHeaders:i,body:o}),this._ended("local",null,r)}}},{key:"sendDTMF",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};R.debug("sendDTMF() | tones: %s",e);var n=0,r=t.duration||null,i=t.interToneGap||null,o=t.transportType||_.DTMF_TRANSPORT.INFO;if(void 0===e)throw new TypeError("Not enough arguments");if(this._status!==I.STATUS_CONFIRMED&&this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_1XX_RECEIVED)throw new p.InvalidStateError(this._status);if(o!==_.DTMF_TRANSPORT.INFO&&o!==_.DTMF_TRANSPORT.RFC2833)throw new TypeError("invalid transportType: ".concat(o));if("number"==typeof e&&(e=e.toString()),!e||"string"!=typeof e||!e.match(/^[0-9A-DR#*,]+$/i))throw new TypeError("Invalid tones: ".concat(e));if(r&&!v.isDecimal(r))throw new TypeError("Invalid tone duration: ".concat(r));if(r?r<S.C.MIN_DURATION?(R.debug('"duration" value is lower than the minimum allowed, setting it to '.concat(S.C.MIN_DURATION," milliseconds")),r=S.C.MIN_DURATION):r>S.C.MAX_DURATION?(R.debug('"duration" value is greater than the maximum allowed, setting it to '.concat(S.C.MAX_DURATION," milliseconds")),r=S.C.MAX_DURATION):r=Math.abs(r):r=S.C.DEFAULT_DURATION,t.duration=r,i&&!v.isDecimal(i))throw new TypeError("Invalid interToneGap: ".concat(i));if(i?i<S.C.MIN_INTER_TONE_GAP?(R.debug('"interToneGap" value is lower than the minimum allowed, setting it to '.concat(S.C.MIN_INTER_TONE_GAP," milliseconds")),i=S.C.MIN_INTER_TONE_GAP):i=Math.abs(i):i=S.C.DEFAULT_INTER_TONE_GAP,o!==_.DTMF_TRANSPORT.RFC2833)this._tones?this._tones+=e:(this._tones=e,function e(){var o=this;var s;if(this._status===I.STATUS_TERMINATED||!this._tones||n>=this._tones.length)return void(this._tones=null);var l=this._tones[n];n+=1;if(","===l)s=2e3;else{var u=new S(this);t.eventHandlers={onFailed:function(){o._tones=null}},u.send(l,t),s=r+i}setTimeout(e.bind(this),s)}.call(this));else{var s=this._getDTMFRTPSender();s&&(e=s.toneBuffer+e,s.insertDTMF(e,r,i))}}},{key:"sendInfo",value:function(e,t){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};if(R.debug("sendInfo()"),this._status!==I.STATUS_CONFIRMED&&this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_1XX_RECEIVED)throw new p.InvalidStateError(this._status);new C(this).send(e,t,n)}},{key:"mute",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{audio:!0,video:!1};R.debug("mute()");var t=!1,n=!1;!1===this._audioMuted&&e.audio&&(t=!0,this._audioMuted=!0,this._toggleMuteAudio(!0)),!1===this._videoMuted&&e.video&&(n=!0,this._videoMuted=!0,this._toggleMuteVideo(!0)),!0!==t&&!0!==n||this._onmute({audio:t,video:n})}},{key:"unmute",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{audio:!0,video:!0};R.debug("unmute()");var t=!1,n=!1;!0===this._audioMuted&&e.audio&&(t=!0,this._audioMuted=!1,!1===this._localHold&&this._toggleMuteAudio(!1)),!0===this._videoMuted&&e.video&&(n=!0,this._videoMuted=!1,!1===this._localHold&&this._toggleMuteVideo(!1)),!0!==t&&!0!==n||this._onunmute({audio:t,video:n})}},{key:"hold",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},n=arguments.length>1?arguments[1]:void 0;if(R.debug("hold()"),this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_CONFIRMED)return!1;if(!0===this._localHold)return!1;if(!this._isReadyToReOffer())return!1;this._localHold=!0,this._onhold("local");var r={succeeded:function(){n&&n()},failed:function(){e.terminate({cause:_.causes.WEBRTC_ERROR,status_code:500,reason_phrase:"Hold Failed"})}};return t.useUpdate?this._sendUpdate({sdpOffer:!0,eventHandlers:r,extraHeaders:t.extraHeaders}):this._sendReinvite({eventHandlers:r,extraHeaders:t.extraHeaders}),!0}},{key:"unhold",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},n=arguments.length>1?arguments[1]:void 0;if(R.debug("unhold()"),this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_CONFIRMED)return!1;if(!1===this._localHold)return!1;if(!this._isReadyToReOffer())return!1;this._localHold=!1,this._onunhold("local");var r={succeeded:function(){n&&n()},failed:function(){e.terminate({cause:_.causes.WEBRTC_ERROR,status_code:500,reason_phrase:"Unhold Failed"})}};return t.useUpdate?this._sendUpdate({sdpOffer:!0,eventHandlers:r,extraHeaders:t.extraHeaders}):this._sendReinvite({eventHandlers:r,extraHeaders:t.extraHeaders}),!0}},{key:"renegotiate",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},n=arguments.length>1?arguments[1]:void 0;R.debug("renegotiate()");var r=t.rtcOfferConstraints||null;if(this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_CONFIRMED)return!1;if(!this._isReadyToReOffer())return!1;var i={succeeded:function(){n&&n()},failed:function(){e.terminate({cause:_.causes.WEBRTC_ERROR,status_code:500,reason_phrase:"Media Renegotiation Failed"})}};return this._setLocalMediaStatus(),t.useUpdate?this._sendUpdate({sdpOffer:!0,eventHandlers:i,rtcOfferConstraints:r,extraHeaders:t.extraHeaders}):this._sendReinvite({eventHandlers:i,rtcOfferConstraints:r,extraHeaders:t.extraHeaders}),!0}},{key:"refer",value:function(e,t){var n=this;R.debug("refer()");var r=e;if(this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_CONFIRMED)return!1;if(!(e=this._ua.normalizeTarget(e)))throw new TypeError("Invalid target: ".concat(r));var i=new A(this);i.sendRefer(e,t);var o=i.id;return this._referSubscribers[o]=i,i.on("requestFailed",function(){delete n._referSubscribers[o]}),i.on("accepted",function(){delete n._referSubscribers[o]}),i.on("failed",function(){delete n._referSubscribers[o]}),i}},{key:"sendRequest",value:function(e,t){if(R.debug("sendRequest()"),this._dialog)return this._dialog.sendRequest(e,t);var n=Object.values(this._earlyDialogs);return n.length>0?n[0].sendRequest(e,t):void R.warn("No valid early dialog found to send request")}},{key:"receiveRequest",value:function(e){var t=this;if(R.debug("receiveRequest()"),e.method===_.CANCEL)this._status!==I.STATUS_WAITING_FOR_ANSWER&&this._status!==I.STATUS_ANSWERED||(this._status=I.STATUS_CANCELED,this._request.reply(487),this._failed("remote",e,_.causes.CANCELED));else switch(e.method){case _.ACK:if(this._status!==I.STATUS_WAITING_FOR_ACK)return;if(this._status=I.STATUS_CONFIRMED,clearTimeout(this._timers.ackTimer),clearTimeout(this._timers.invite2xxTimer),this._late_sdp){if(!e.body){this.terminate({cause:_.causes.MISSING_SDP,status_code:400});break}var n={originator:"remote",type:"answer",sdp:e.body};R.debug('emit "sdp"'),this.emit("sdp",n);var r=new RTCSessionDescription({type:"answer",sdp:n.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return t._connection.setRemoteDescription(r)}).then(function(){t._is_confirmed||t._confirmed("remote",e)}).catch(function(e){t.terminate({cause:_.causes.BAD_MEDIA_DESCRIPTION,status_code:488}),R.warn('emit "peerconnection:setremotedescriptionfailed" [error:%o]',e),t.emit("peerconnection:setremotedescriptionfailed",e)})}else this._is_confirmed||this._confirmed("remote",e);break;case _.BYE:this._status===I.STATUS_CONFIRMED||this._status===I.STATUS_WAITING_FOR_ACK?(e.reply(200),this._ended("remote",e,_.causes.BYE)):this._status===I.STATUS_INVITE_RECEIVED||this._status===I.STATUS_WAITING_FOR_ANSWER?(e.reply(200),this._request.reply(487,"BYE Received"),this._ended("remote",e,_.causes.BYE)):e.reply(403,"Wrong Status");break;case _.INVITE:this._status===I.STATUS_CONFIRMED?e.hasHeader("replaces")?this._receiveReplaces(e):this._receiveReinvite(e):e.reply(403,"Wrong Status");break;case _.INFO:if(this._status===I.STATUS_1XX_RECEIVED||this._status===I.STATUS_WAITING_FOR_ANSWER||this._status===I.STATUS_ANSWERED||this._status===I.STATUS_WAITING_FOR_ACK||this._status===I.STATUS_CONFIRMED){var i=e.hasHeader("Content-Type")?e.getHeader("Content-Type").toLowerCase():void 0;i&&i.match(/^application\/dtmf-relay/i)?new S(this).init_incoming(e):void 0!==i?new C(this).init_incoming(e):e.reply(415)}else e.reply(403,"Wrong Status");break;case _.UPDATE:this._status===I.STATUS_CONFIRMED?this._receiveUpdate(e):e.reply(403,"Wrong Status");break;case _.REFER:this._status===I.STATUS_CONFIRMED?this._receiveRefer(e):e.reply(403,"Wrong Status");break;case _.NOTIFY:this._status===I.STATUS_CONFIRMED?this._receiveNotify(e):e.reply(403,"Wrong Status");break;default:e.reply(501)}}},{key:"onTransportError",value:function(){R.warn("onTransportError()"),this._status!==I.STATUS_TERMINATED&&this.terminate({status_code:500,reason_phrase:_.causes.CONNECTION_ERROR,cause:_.causes.CONNECTION_ERROR})}},{key:"onRequestTimeout",value:function(){R.warn("onRequestTimeout()"),this._status!==I.STATUS_TERMINATED&&this.terminate({status_code:408,reason_phrase:_.causes.REQUEST_TIMEOUT,cause:_.causes.REQUEST_TIMEOUT})}},{key:"onDialogError",value:function(){R.warn("onDialogError()"),this._status!==I.STATUS_TERMINATED&&this.terminate({status_code:500,reason_phrase:_.causes.DIALOG_ERROR,cause:_.causes.DIALOG_ERROR})}},{key:"newDTMF",value:function(e){R.debug("newDTMF()"),this.emit("newDTMF",e)}},{key:"newInfo",value:function(e){R.debug("newInfo()"),this.emit("newInfo",e)}},{key:"_isReadyToReOffer",value:function(){return this._rtcReady?this._dialog?!0!==this._dialog.uac_pending_reply&&!0!==this._dialog.uas_pending_reply||(R.debug("_isReadyToReOffer() | there is another INVITE/UPDATE transaction in progress"),!1):(R.debug("_isReadyToReOffer() | session not established yet"),!1):(R.debug("_isReadyToReOffer() | internal WebRTC status not ready"),!1)}},{key:"_close",value:function(){if(R.debug("close()"),this._localMediaStream&&this._localMediaStreamLocallyGenerated&&(R.debug("close() | closing local MediaStream"),v.closeMediaStream(this._localMediaStream)),this._status!==I.STATUS_TERMINATED){if(this._status=I.STATUS_TERMINATED,this._connection)try{this._connection.close()}catch(e){R.warn("close() | error closing the RTCPeerConnection: %o",e)}for(var e in this._timers)Object.prototype.hasOwnProperty.call(this._timers,e)&&clearTimeout(this._timers[e]);for(var t in clearTimeout(this._sessionTimers.timer),this._dialog&&(this._dialog.terminate(),delete this._dialog),this._earlyDialogs)Object.prototype.hasOwnProperty.call(this._earlyDialogs,t)&&(this._earlyDialogs[t].terminate(),delete this._earlyDialogs[t]);for(var n in this._referSubscribers)Object.prototype.hasOwnProperty.call(this._referSubscribers,n)&&delete this._referSubscribers[n];this._ua.destroyRTCSession(this)}}},{key:"_setInvite2xxTimer",value:function(e,t){var n=g.T1;this._timers.invite2xxTimer=setTimeout(function r(){this._status===I.STATUS_WAITING_FOR_ACK&&(e.reply(200,null,["Contact: ".concat(this._contact)],t),n<g.T2&&(n*=2)>g.T2&&(n=g.T2),this._timers.invite2xxTimer=setTimeout(r.bind(this),n))}.bind(this),n)}},{key:"_setACKTimer",value:function(){var e=this;this._timers.ackTimer=setTimeout(function(){e._status===I.STATUS_WAITING_FOR_ACK&&(R.debug("no ACK received, terminating the session"),clearTimeout(e._timers.invite2xxTimer),e.sendRequest(_.BYE),e._ended("remote",null,_.causes.NO_ACK))},g.TIMER_H)}},{key:"_createRTCConnection",value:function(e,t){var n=this;this._connection=new RTCPeerConnection(e,t),this._connection.addEventListener("iceconnectionstatechange",function(){"failed"===n._connection.iceConnectionState&&n.terminate({cause:_.causes.RTP_TIMEOUT,status_code:408,reason_phrase:_.causes.RTP_TIMEOUT})}),R.debug('emit "peerconnection"'),this.emit("peerconnection",{peerconnection:this._connection})}},{key:"_createLocalDescription",value:function(e,t){var n=this;if(R.debug("createLocalDescription()"),"offer"!==e&&"answer"!==e)throw new Error('createLocalDescription() | invalid type "'.concat(e,'"'));var r=this._connection;return this._rtcReady=!1,Promise.resolve().then(function(){return"offer"===e?r.createOffer(t).catch(function(e){return R.warn('emit "peerconnection:createofferfailed" [error:%o]',e),n.emit("peerconnection:createofferfailed",e),Promise.reject(e)}):r.createAnswer(t).catch(function(e){return R.warn('emit "peerconnection:createanswerfailed" [error:%o]',e),n.emit("peerconnection:createanswerfailed",e),Promise.reject(e)})}).then(function(e){return r.setLocalDescription(e).catch(function(e){return n._rtcReady=!0,R.warn('emit "peerconnection:setlocaldescriptionfailed" [error:%o]',e),n.emit("peerconnection:setlocaldescriptionfailed",e),Promise.reject(e)})}).then(function(){var i=t&&t.iceRestart;if("complete"===r.iceGatheringState&&!i||"gathering"===r.iceGatheringState&&n._iceReady){n._rtcReady=!0;var o={originator:"local",type:e,sdp:r.localDescription.sdp};return R.debug('emit "sdp"'),n.emit("sdp",o),Promise.resolve(o.sdp)}return new Promise(function(t){var i,o,s=!1;n._iceReady=!1;var l=function(){if(!s){r.removeEventListener("icecandidate",i),r.removeEventListener("icegatheringstatechange",o),s=!0,n._rtcReady=!0,n._iceReady=!0;var l={originator:"local",type:e,sdp:r.localDescription.sdp};R.debug('emit "sdp"'),n.emit("sdp",l),t(l.sdp)}};r.addEventListener("icecandidate",i=function(e){var t=e.candidate;t?n.emit("icecandidate",{candidate:t,ready:l}):l()}),r.addEventListener("icegatheringstatechange",o=function(){"complete"===r.iceGatheringState&&l()})})})}},{key:"_createDialog",value:function(e,t,n){var r="UAS"===t?e.to_tag:e.from_tag,i="UAS"===t?e.from_tag:e.to_tag,o=e.call_id+r+i,s=this._earlyDialogs[o];if(n)return!!s||((s=new T(this,e,t,T.C.STATUS_EARLY)).error?(R.debug(s.error),this._failed("remote",e,_.causes.INTERNAL_ERROR),!1):(this._earlyDialogs[o]=s,!0));if(this._from_tag=e.from_tag,this._to_tag=e.to_tag,s)return s.update(e,t),this._dialog=s,this._dialog._local_seqnum=e.cseq,delete this._earlyDialogs[o],!0;var l=new T(this,e,t);return l.error?(R.debug(l.error),this._failed("remote",e,_.causes.INTERNAL_ERROR),!1):(this._dialog=l,!0)}},{key:"_receiveReinvite",value:function(e){var t=this;R.debug("receiveReinvite()");var n=e.hasHeader("Content-Type")?e.getHeader("Content-Type").toLowerCase():void 0,r={request:e,callback:void 0,reject:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};i=!0;var n=t.status_code||403,r=t.reason_phrase||"",o=v.cloneArray(t.extraHeaders);if(this._status!==I.STATUS_CONFIRMED)return!1;if(n<300||n>=700)throw new TypeError("Invalid status_code: ".concat(n));e.reply(n,r,o)}.bind(this)},i=!1;if(this.emit("reinvite",r),!i){if(this._late_sdp=!1,!e.body)return this._late_sdp=!0,this._remoteHold&&(this._remoteHold=!1,this._onunhold("remote")),void(this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return t._createLocalDescription("offer",t._rtcOfferConstraints)}).then(function(e){o.call(t,e)}).catch(function(){e.reply(500)}));if("application/sdp"!==n)return R.debug("invalid Content-Type"),void e.reply(415);this._processInDialogSdpOffer(e).then(function(e){t._status!==I.STATUS_TERMINATED&&o.call(t,e)}).catch(function(e){R.warn(e)})}function o(t){var n=this,i=["Contact: ".concat(this._contact)];this._handleSessionTimersInIncomingRequest(e,i),this._late_sdp&&(t=this._mangleOffer(t)),e.reply(200,null,i,t,function(){n._status=I.STATUS_WAITING_FOR_ACK,n._setInvite2xxTimer(e,t),n._setACKTimer()}),"function"==typeof r.callback&&r.callback()}}},{key:"_receiveUpdate",value:function(e){var t=this;R.debug("receiveUpdate()");var n=e.hasHeader("Content-Type")?e.getHeader("Content-Type").toLowerCase():void 0,r={request:e,callback:void 0,reject:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};i=!0;var n=t.status_code||403,r=t.reason_phrase||"",o=v.cloneArray(t.extraHeaders);if(this._status!==I.STATUS_CONFIRMED)return!1;if(n<300||n>=700)throw new TypeError("Invalid status_code: ".concat(n));e.reply(n,r,o)}.bind(this)},i=!1;if(this.emit("update",r),!i)if(e.body){if("application/sdp"!==n)return R.debug("invalid Content-Type"),void e.reply(415);this._processInDialogSdpOffer(e).then(function(e){t._status!==I.STATUS_TERMINATED&&o.call(t,e)}).catch(function(e){R.warn(e)})}else o.call(this,null);function o(t){var n=["Contact: ".concat(this._contact)];this._handleSessionTimersInIncomingRequest(e,n),e.reply(200,null,n,t),"function"==typeof r.callback&&r.callback()}}},{key:"_processInDialogSdpOffer",value:function(e){var t=this;R.debug("_processInDialogSdpOffer()");var n,r=e.parseSDP(),o=!1,s=i(r.media);try{for(s.s();!(n=s.n()).done;){var l=n.value;if(-1!==O.indexOf(l.type)){var u=l.direction||r.direction||"sendrecv";if("sendonly"!==u&&"inactive"!==u){o=!1;break}o=!0}}}catch(e){s.e(e)}finally{s.f()}var a={originator:"remote",type:"offer",sdp:e.body};R.debug('emit "sdp"'),this.emit("sdp",a);var c=new RTCSessionDescription({type:"offer",sdp:a.sdp});return this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){if(t._status===I.STATUS_TERMINATED)throw new Error("terminated");return t._connection.setRemoteDescription(c).catch(function(n){throw e.reply(488),R.warn('emit "peerconnection:setremotedescriptionfailed" [error:%o]',n),t.emit("peerconnection:setremotedescriptionfailed",n),n})}).then(function(){if(t._status===I.STATUS_TERMINATED)throw new Error("terminated");!0===t._remoteHold&&!1===o?(t._remoteHold=!1,t._onunhold("remote")):!1===t._remoteHold&&!0===o&&(t._remoteHold=!0,t._onhold("remote"))}).then(function(){if(t._status===I.STATUS_TERMINATED)throw new Error("terminated");return t._createLocalDescription("answer",t._rtcAnswerConstraints).catch(function(t){throw e.reply(500),R.warn('emit "peerconnection:createtelocaldescriptionfailed" [error:%o]',t),t})}).catch(function(e){R.warn("_processInDialogSdpOffer() failed [error: %o]",e)}),this._connectionPromiseQueue}},{key:"_receiveRefer",value:function(e){var n=this;if(R.debug("receiveRefer()"),!e.refer_to)return R.debug("no Refer-To header field present in REFER"),void e.reply(400);if(e.refer_to.uri.scheme!==_.SIP)return R.debug("Refer-To header field points to a non-SIP URI scheme"),void e.reply(416);e.reply(202);var r=new E(this,e.cseq);R.debug('emit "refer"'),this.emit("refer",{request:e,accept:function(i,o){(function(n){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(n="function"==typeof n?n:null,this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_CONFIRMED)return!1;var o=new t(this._ua);if(o.on("progress",function(e){var t=e.response;r.notify(t.status_code,t.reason_phrase)}),o.on("accepted",function(e){var t=e.response;r.notify(t.status_code,t.reason_phrase)}),o.on("_failed",function(e){var t=e.message,n=e.cause;t?r.notify(t.status_code,t.reason_phrase):r.notify(487,n)}),e.refer_to.uri.hasHeader("replaces")){var s=decodeURIComponent(e.refer_to.uri.getHeader("replaces"));i.extraHeaders=v.cloneArray(i.extraHeaders),i.extraHeaders.push("Replaces: ".concat(s))}o.connect(e.refer_to.uri.toAor(),i,n)}).call(n,i,o)},reject:function(){(function(){r.notify(603)}).call(n)}})}},{key:"_receiveNotify",value:function(e){switch(R.debug("receiveNotify()"),e.event||e.reply(400),e.event.event){case"refer":var t,n;if(e.event.params&&e.event.params.id)t=e.event.params.id,n=this._referSubscribers[t];else{if(1!==Object.keys(this._referSubscribers).length)return void e.reply(400,"Missing event id parameter");n=this._referSubscribers[Object.keys(this._referSubscribers)[0]]}if(!n)return void e.reply(481,"Subscription does not exist");n.receiveNotify(e),e.reply(200);break;default:e.reply(489)}}},{key:"_receiveReplaces",value:function(e){var n=this;R.debug("receiveReplaces()"),this.emit("replaces",{request:e,accept:function(r){(function(n){var r=this;if(this._status!==I.STATUS_WAITING_FOR_ACK&&this._status!==I.STATUS_CONFIRMED)return!1;var i=new t(this._ua);i.on("confirmed",function(){r.terminate()}),i.init_incoming(e,n)}).call(n,r)},reject:function(){(function(){R.debug("Replaced INVITE rejected by the user"),e.reply(486)}).call(n)}})}},{key:"_sendInitialRequest",value:function(e,t,n){var r=this,i=new b(this._ua,this._request,{onRequestTimeout:function(){r.onRequestTimeout()},onTransportError:function(){r.onTransportError()},onAuthenticated:function(e){r._request=e},onReceiveResponse:function(e){r._receiveInviteResponse(e)}});Promise.resolve().then(function(){return n||(e.audio||e.video?(r._localMediaStreamLocallyGenerated=!0,navigator.mediaDevices.getUserMedia(e).catch(function(e){if(r._status===I.STATUS_TERMINATED)throw new Error("terminated");throw r._failed("local",null,_.causes.USER_DENIED_MEDIA_ACCESS),R.warn('emit "getusermediafailed" [error:%o]',e),r.emit("getusermediafailed",e),e})):void 0)}).then(function(e){if(r._status===I.STATUS_TERMINATED)throw new Error("terminated");return r._localMediaStream=e,e&&e.getTracks().forEach(function(t){r._connection.addTrack(t,e)}),r._connecting(r._request),r._createLocalDescription("offer",t).catch(function(e){throw r._failed("local",null,_.causes.WEBRTC_ERROR),e})}).then(function(e){if(r._is_canceled||r._status===I.STATUS_TERMINATED)throw new Error("terminated");r._request.body=e,r._status=I.STATUS_INVITE_SENT,R.debug('emit "sending" [request:%o]',r._request),r.emit("sending",{request:r._request}),i.send()}).catch(function(e){r._status!==I.STATUS_TERMINATED&&R.warn(e)})}},{key:"_getDTMFRTPSender",value:function(){var e=this._connection.getSenders().find(function(e){return e.track&&"audio"===e.track.kind});if(e&&e.dtmf)return e.dtmf;R.warn("sendDTMF() | no local audio track to send DTMF with")}},{key:"_receiveInviteResponse",value:function(e){var t=this;if(R.debug("receiveInviteResponse()"),this._dialog&&e.status_code>=200&&e.status_code<=299){if(this._dialog.id.call_id===e.call_id&&this._dialog.id.local_tag===e.from_tag&&this._dialog.id.remote_tag===e.to_tag)return void this.sendRequest(_.ACK);var n=new T(this,e,"UAC");return void 0!==n.error?void R.debug(n.error):(this.sendRequest(_.ACK),void this.sendRequest(_.BYE))}if(this._is_canceled)e.status_code>=100&&e.status_code<200?this._request.cancel(this._cancel_reason):e.status_code>=200&&e.status_code<299&&this._acceptAndTerminate(e);else if(this._status===I.STATUS_INVITE_SENT||this._status===I.STATUS_1XX_RECEIVED)switch(!0){case/^100$/.test(e.status_code):this._status=I.STATUS_1XX_RECEIVED;break;case/^1[0-9]{2}$/.test(e.status_code):if(!e.to_tag){R.debug("1xx response received without to tag");break}if(e.hasHeader("contact")&&!this._createDialog(e,"UAC",!0))break;if(this._status=I.STATUS_1XX_RECEIVED,!e.body){this._progress("remote",e);break}var r={originator:"remote",type:"answer",sdp:e.body};R.debug('emit "sdp"'),this.emit("sdp",r);var i=new RTCSessionDescription({type:"answer",sdp:r.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return t._connection.setRemoteDescription(i)}).then(function(){return t._progress("remote",e)}).catch(function(e){R.warn('emit "peerconnection:setremotedescriptionfailed" [error:%o]',e),t.emit("peerconnection:setremotedescriptionfailed",e)});break;case/^2[0-9]{2}$/.test(e.status_code):if(this._status=I.STATUS_CONFIRMED,!e.body){this._acceptAndTerminate(e,400,_.causes.MISSING_SDP),this._failed("remote",e,_.causes.BAD_MEDIA_DESCRIPTION);break}if(!this._createDialog(e,"UAC"))break;var o={originator:"remote",type:"answer",sdp:e.body};R.debug('emit "sdp"'),this.emit("sdp",o);var s=new RTCSessionDescription({type:"answer",sdp:o.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){if("stable"===t._connection.signalingState)return t._connection.createOffer(t._rtcOfferConstraints).then(function(e){return t._connection.setLocalDescription(e)}).catch(function(n){t._acceptAndTerminate(e,500,n.toString()),t._failed("local",e,_.causes.WEBRTC_ERROR)})}).then(function(){t._connection.setRemoteDescription(s).then(function(){t._handleSessionTimersInIncomingResponse(e),t._accepted("remote",e),t.sendRequest(_.ACK),t._confirmed("local",null)}).catch(function(n){t._acceptAndTerminate(e,488,"Not Acceptable Here"),t._failed("remote",e,_.causes.BAD_MEDIA_DESCRIPTION),R.warn('emit "peerconnection:setremotedescriptionfailed" [error:%o]',n),t.emit("peerconnection:setremotedescriptionfailed",n)})});break;default:var l=v.sipErrorCause(e.status_code);this._failed("remote",e,l)}}},{key:"_sendReinvite",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};R.debug("sendReinvite()");var n=v.cloneArray(t.extraHeaders),r=v.cloneObject(t.eventHandlers),i=t.rtcOfferConstraints||this._rtcOfferConstraints||null,o=!1;function s(e){r.failed&&r.failed(e)}n.push("Contact: ".concat(this._contact)),n.push("Content-Type: application/sdp"),this._sessionTimers.running&&n.push("Session-Expires: ".concat(this._sessionTimers.currentExpires,";refresher=").concat(this._sessionTimers.refresher?"uac":"uas")),this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return e._createLocalDescription("offer",i)}).then(function(t){var i={originator:"local",type:"offer",sdp:t=e._mangleOffer(t)};R.debug('emit "sdp"'),e.emit("sdp",i),e.sendRequest(_.INVITE,{extraHeaders:n,body:t,eventHandlers:{onSuccessResponse:function(t){(function(e){var t=this;if(this._status===I.STATUS_TERMINATED)return;if(this.sendRequest(_.ACK),o)return;if(this._handleSessionTimersInIncomingResponse(e),!e.body)return void s.call(this);if(!e.hasHeader("Content-Type")||"application/sdp"!==e.getHeader("Content-Type").toLowerCase())return void s.call(this);var n={originator:"remote",type:"answer",sdp:e.body};R.debug('emit "sdp"'),this.emit("sdp",n);var i=new RTCSessionDescription({type:"answer",sdp:n.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return t._connection.setRemoteDescription(i)}).then(function(){r.succeeded&&r.succeeded(e)}).catch(function(e){s.call(t),R.warn('emit "peerconnection:setremotedescriptionfailed" [error:%o]',e),t.emit("peerconnection:setremotedescriptionfailed",e)})}).call(e,t),o=!0},onErrorResponse:function(t){s.call(e,t)},onTransportError:function(){e.onTransportError()},onRequestTimeout:function(){e.onRequestTimeout()},onDialogError:function(){e.onDialogError()}}})}).catch(function(){s()})}},{key:"_sendUpdate",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};R.debug("sendUpdate()");var n=v.cloneArray(t.extraHeaders),r=v.cloneObject(t.eventHandlers),i=t.rtcOfferConstraints||this._rtcOfferConstraints||null,o=t.sdpOffer||!1,s=!1;function l(e){var t=this;if(this._status!==I.STATUS_TERMINATED&&!s)if(this._handleSessionTimersInIncomingResponse(e),o){if(!e.body)return void u.call(this);if(!e.hasHeader("Content-Type")||"application/sdp"!==e.getHeader("Content-Type").toLowerCase())return void u.call(this);var n={originator:"remote",type:"answer",sdp:e.body};R.debug('emit "sdp"'),this.emit("sdp",n);var i=new RTCSessionDescription({type:"answer",sdp:n.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return t._connection.setRemoteDescription(i)}).then(function(){r.succeeded&&r.succeeded(e)}).catch(function(e){u.call(t),R.warn('emit "peerconnection:setremotedescriptionfailed" [error:%o]',e),t.emit("peerconnection:setremotedescriptionfailed",e)})}else r.succeeded&&r.succeeded(e)}function u(e){r.failed&&r.failed(e)}n.push("Contact: ".concat(this._contact)),this._sessionTimers.running&&n.push("Session-Expires: ".concat(this._sessionTimers.currentExpires,";refresher=").concat(this._sessionTimers.refresher?"uac":"uas")),o?(n.push("Content-Type: application/sdp"),this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return e._createLocalDescription("offer",i)}).then(function(t){var r={originator:"local",type:"offer",sdp:t=e._mangleOffer(t)};R.debug('emit "sdp"'),e.emit("sdp",r),e.sendRequest(_.UPDATE,{extraHeaders:n,body:t,eventHandlers:{onSuccessResponse:function(t){l.call(e,t),s=!0},onErrorResponse:function(t){u.call(e,t)},onTransportError:function(){e.onTransportError()},onRequestTimeout:function(){e.onRequestTimeout()},onDialogError:function(){e.onDialogError()}}})}).catch(function(){u.call(e)})):this.sendRequest(_.UPDATE,{extraHeaders:n,eventHandlers:{onSuccessResponse:function(t){l.call(e,t)},onErrorResponse:function(t){u.call(e,t)},onTransportError:function(){e.onTransportError()},onRequestTimeout:function(){e.onRequestTimeout()},onDialogError:function(){e.onDialogError()}}})}},{key:"_acceptAndTerminate",value:function(e,t,n){R.debug("acceptAndTerminate()");var r=[];t&&(n=n||_.REASON_PHRASE[t]||"",r.push("Reason: SIP ;cause=".concat(t,'; text="').concat(n,'"'))),(this._dialog||this._createDialog(e,"UAC"))&&(this.sendRequest(_.ACK),this.sendRequest(_.BYE,{extraHeaders:r})),this._status=I.STATUS_TERMINATED}},{key:"_mangleOffer",value:function(e){if(!this._localHold&&!this._remoteHold)return e;if(e=h.parse(e),this._localHold&&!this._remoteHold){R.debug("mangleOffer() | me on hold, mangling offer");var t,n=i(e.media);try{for(n.s();!(t=n.n()).done;){var r=t.value;-1!==O.indexOf(r.type)&&(r.direction?"sendrecv"===r.direction?r.direction="sendonly":"recvonly"===r.direction&&(r.direction="inactive"):r.direction="sendonly")}}catch(e){n.e(e)}finally{n.f()}}else if(this._localHold&&this._remoteHold){R.debug("mangleOffer() | both on hold, mangling offer");var o,s=i(e.media);try{for(s.s();!(o=s.n()).done;){var l=o.value;-1!==O.indexOf(l.type)&&(l.direction="inactive")}}catch(e){s.e(e)}finally{s.f()}}else if(this._remoteHold){R.debug("mangleOffer() | remote on hold, mangling offer");var u,a=i(e.media);try{for(a.s();!(u=a.n()).done;){var c=u.value;-1!==O.indexOf(c.type)&&(c.direction?"sendrecv"===c.direction?c.direction="recvonly":"recvonly"===c.direction&&(c.direction="inactive"):c.direction="recvonly")}}catch(e){a.e(e)}finally{a.f()}}return h.write(e)}},{key:"_setLocalMediaStatus",value:function(){var e=!0,t=!0;(this._localHold||this._remoteHold)&&(e=!1,t=!1),this._audioMuted&&(e=!1),this._videoMuted&&(t=!1),this._toggleMuteAudio(!e),this._toggleMuteVideo(!t)}},{key:"_handleSessionTimersInIncomingRequest",value:function(e,t){var n;this._sessionTimers.enabled&&(e.session_expires&&e.session_expires>=_.MIN_SESSION_EXPIRES?(this._sessionTimers.currentExpires=e.session_expires,n=e.session_expires_refresher||"uas"):(this._sessionTimers.currentExpires=this._sessionTimers.defaultExpires,n="uas"),t.push("Session-Expires: ".concat(this._sessionTimers.currentExpires,";refresher=").concat(n)),this._sessionTimers.refresher="uas"===n,this._runSessionTimer())}},{key:"_handleSessionTimersInIncomingResponse",value:function(e){var t;this._sessionTimers.enabled&&(e.session_expires&&e.session_expires>=_.MIN_SESSION_EXPIRES?(this._sessionTimers.currentExpires=e.session_expires,t=e.session_expires_refresher||"uac"):(this._sessionTimers.currentExpires=this._sessionTimers.defaultExpires,t="uac"),this._sessionTimers.refresher="uac"===t,this._runSessionTimer())}},{key:"_runSessionTimer",value:function(){var e=this,t=this._sessionTimers.currentExpires;this._sessionTimers.running=!0,clearTimeout(this._sessionTimers.timer),this._sessionTimers.refresher?this._sessionTimers.timer=setTimeout(function(){e._status!==I.STATUS_TERMINATED&&e._isReadyToReOffer()&&(R.debug("runSessionTimer() | sending session refresh request"),e._sessionTimers.refreshMethod===_.UPDATE?e._sendUpdate():e._sendReinvite())},500*t):this._sessionTimers.timer=setTimeout(function(){e._status!==I.STATUS_TERMINATED&&(R.warn("runSessionTimer() | timer expired, terminating the session"),e.terminate({cause:_.causes.REQUEST_TIMEOUT,status_code:408,reason_phrase:"Session Timer Expired"}))},1100*t)}},{key:"_toggleMuteAudio",value:function(e){var t,n=i(this._connection.getSenders().filter(function(e){return e.track&&"audio"===e.track.kind}));try{for(n.s();!(t=n.n()).done;){t.value.track.enabled=!e}}catch(e){n.e(e)}finally{n.f()}}},{key:"_toggleMuteVideo",value:function(e){var t,n=i(this._connection.getSenders().filter(function(e){return e.track&&"video"===e.track.kind}));try{for(n.s();!(t=n.n()).done;){t.value.track.enabled=!e}}catch(e){n.e(e)}finally{n.f()}}},{key:"_newRTCSession",value:function(e,t){R.debug("newRTCSession()"),this._ua.newRTCSession(this,{originator:e,session:this,request:t})}},{key:"_connecting",value:function(e){R.debug("session connecting"),R.debug('emit "connecting"'),this.emit("connecting",{request:e})}},{key:"_progress",value:function(e,t){R.debug("session progress"),R.debug('emit "progress"'),this.emit("progress",{originator:e,response:t||null})}},{key:"_accepted",value:function(e,t){R.debug("session accepted"),this._start_time=new Date,R.debug('emit "accepted"'),this.emit("accepted",{originator:e,response:t||null})}},{key:"_confirmed",value:function(e,t){R.debug("session confirmed"),this._is_confirmed=!0,R.debug('emit "confirmed"'),this.emit("confirmed",{originator:e,ack:t||null})}},{key:"_ended",value:function(e,t,n){R.debug("session ended"),this._end_time=new 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i="Signal=".concat(this._tone,"\r\n");i+="Duration=".concat(this._duration),this._session.newDTMF({originator:"local",dtmf:this,request:this._request}),this._session.sendRequest(f.INFO,{extraHeaders:r,eventHandlers:{onSuccessResponse:function(e){t.emit("succeeded",{originator:"remote",response:e})},onErrorResponse:function(e){t.eventHandlers.onFailed&&t.eventHandlers.onFailed(),t.emit("failed",{originator:"remote",response:e})},onRequestTimeout:function(){t._session.onRequestTimeout()},onTransportError:function(){t._session.onTransportError()},onDialogError:function(){t._session.onDialogError()}},body:i})}},{key:"init_incoming",value:function(e){var t=/^(Signal\s*?=\s*?)([0-9A-D#*]{1})(\s)?.*/,n=/^(Duration\s?=\s?)([0-9]{1,4})(\s)?.*/;if(this._direction="incoming",this._request=e,e.reply(200),e.body){var 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c(this._ua,r,{onRequestTimeout:function(){e._registrationFailure(null,u.causes.REQUEST_TIMEOUT)},onTransportError:function(){e._registrationFailure(null,u.causes.CONNECTION_ERROR)},onAuthenticated:function(){e._cseq+=1},onReceiveResponse:function(t){if(t.cseq===e._cseq)switch(null!==e._registrationTimer&&(clearTimeout(e._registrationTimer),e._registrationTimer=null),!0){case/^1[0-9]{2}$/.test(t.status_code):break;case/^2[0-9]{2}$/.test(t.status_code):if(e._registering=!1,!t.hasHeader("Contact")){f.debug("no Contact header in response to REGISTER, response ignored");break}var n=t.headers.Contact.reduce(function(e,t){return e.concat(t.parsed)},[]),r=n.find(function(t){return e._sipInstance===t.getParam("+sip.instance")&&e._reg_id===parseInt(t.getParam("reg-id"))});if(r||(r=n.find(function(t){return t.uri.user===e._ua.contact.uri.user})),!r){f.debug("no Contact header pointing to us, response ignored");break}var i=r.getParam("expires");!i&&t.hasHeader("expires")&&(i=t.getHeader("expires")),i||(i=e._expires),(i=Number(i))<10&&(i=10);var o=i>64?1e3*i/2+Math.floor(1e3*(i/2-32)*Math.random()):1e3*i-5e3;e._registrationTimer=setTimeout(function(){e._registrationTimer=null,0===e._ua.listeners("registrationExpiring").length?e.register():e._ua.emit("registrationExpiring")},o),r.hasParam("temp-gruu")&&(e._ua.contact.temp_gruu=r.getParam("temp-gruu").replace(/"/g,"")),r.hasParam("pub-gruu")&&(e._ua.contact.pub_gruu=r.getParam("pub-gruu").replace(/"/g,"")),e._registered||(e._registered=!0,e._ua.registered({response:t}));break;case/^423$/.test(t.status_code):t.hasHeader("min-expires")?(e._expires=Number(t.getHeader("min-expires")),e._expires<10&&(e._expires=10),e._registering=!1,e.register()):(f.debug("423 response received for REGISTER without Min-Expires"),e._registrationFailure(t,u.causes.SIP_FAILURE_CODE));break;default:var s=l.sipErrorCause(t.status_code);e._registrationFailure(t,s)}}});this._registering=!0,i.send()}}},{key:"unregister",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};if(this._registered){this._registered=!1,null!==this._registrationTimer&&(clearTimeout(this._registrationTimer),this._registrationTimer=null);var n=this._extraHeaders.slice();t.all?n.push("Contact: *".concat(this._extraContactParams)):n.push("Contact: ".concat(this._contact,";expires=0").concat(this._extraContactParams)),n.push("Expires: 0");var r=new a.OutgoingRequest(u.REGISTER,this._registrar,this._ua,{to_uri:this._to_uri,call_id:this._call_id,cseq:this._cseq+=1},n);new c(this._ua,r,{onRequestTimeout:function(){e._unregistered(null,u.causes.REQUEST_TIMEOUT)},onTransportError:function(){e._unregistered(null,u.causes.CONNECTION_ERROR)},onAuthenticated:function(){e._cseq+=1},onReceiveResponse:function(t){switch(!0){case/^1[0-9]{2}$/.test(t.status_code):break;case/^2[0-9]{2}$/.test(t.status_code):e._unregistered(t);break;default:var n=l.sipErrorCause(t.status_code);e._unregistered(t,n)}}}).send()}else f.debug("already unregistered")}},{key:"close",value:function(){this._registered&&this.unregister()}},{key:"onTransportClosed",value:function(){this._registering=!1,null!==this._registrationTimer&&(clearTimeout(this._registrationTimer),this._registrationTimer=null),this._registered&&(this._registered=!1,this._ua.unregistered({}))}},{key:"_registrationFailure",value:function(e,t){this._registering=!1,this._ua.registrationFailed({response:e||null,cause:t}),this._registered&&(this._registered=!1,this._ua.unregistered({response:e||null,cause:t}))}},{key:"_unregistered",value:function(e,t){this._registering=!1,this._registered=!1,this._ua.unregistered({response:e||null,cause:t||null})}}])&&i(e.prototype,t),n&&i(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e;var e,t,n}()},{"./Constants":2,"./Logger":9,"./RequestSender":20,"./SIPMessage":21,"./Utils":28}],20:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function i(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,o(r.key),r)}}function o(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var i=n.call(e,t||"default");if("object"!=r(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}var s=e("./Logger"),l=e("./Constants"),u=e("./DigestAuthentication"),a=e("./Transactions"),c=new s("RequestSender"),f={onRequestTimeout:function(){},onTransportError:function(){},onReceiveResponse:function(){},onAuthenticated:function(){}};t.exports=function(){return e=function e(t,n,r){for(var i in function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a 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a.NonInviteClientTransaction(this._ua,this._ua.transport,this._request,t)}this._ua._configuration.authorization_jwt&&this._request.setHeader("Authorization",this._ua._configuration.authorization_jwt),this.clientTransaction.send()}},{key:"_receiveResponse",value:function(e){var t,n,r=e.status_code;if(401!==r&&407!==r||null===this._ua.configuration.password&&null===this._ua.configuration.ha1)this._eventHandlers.onReceiveResponse(e);else{if(401===e.status_code?(t=e.parseHeader("www-authenticate"),n="authorization"):(t=e.parseHeader("proxy-authenticate"),n="proxy-authorization"),!t)return c.debug("".concat(e.status_code," with wrong or missing challenge, cannot authenticate")),void this._eventHandlers.onReceiveResponse(e);if(!this._challenged||!this._staled&&!0===t.stale){if(this._auth||(this._auth=new u({username:this._ua.configuration.authorization_user,password:this._ua.configuration.password,realm:this._ua.configuration.realm,ha1:this._ua.configuration.ha1})),!this._auth.authenticate(this._request,t))return void this._eventHandlers.onReceiveResponse(e);this._challenged=!0,this._ua.set("realm",this._auth.get("realm")),this._ua.set("ha1",this._auth.get("ha1")),t.stale&&(this._staled=!0),this._request=this._request.clone(),this._request.cseq+=1,this._request.setHeader("cseq","".concat(this._request.cseq," ").concat(this._method)),this._request.setHeader(n,this._auth.toString()),this._eventHandlers.onAuthenticated(this._request),this.send()}else this._eventHandlers.onReceiveResponse(e)}}}])&&i(e.prototype,t),n&&i(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e;var e,t,n}()},{"./Constants":2,"./DigestAuthentication":5,"./Logger":9,"./Transactions":24}],21:[function(e,t,n){"use strict";function r(e,t,n){return t=i(t),function(e,t){if(t&&("object"==l(t)||"function"==typeof t))return t;if(void 0!==t)throw new TypeError("Derived constructors may only return object or undefined");return function(e){if(void 0===e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return e}(e)}(e,function(){try{var e=!Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){}))}catch(e){}return function(){return!!e}()}()?Reflect.construct(t,n||[],i(e).constructor):t.apply(e,n))}function i(e){return(i=Object.setPrototypeOf?Object.getPrototypeOf.bind():function(e){return e.__proto__||Object.getPrototypeOf(e)})(e)}function o(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function");e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,writable:!0,configurable:!0}}),Object.defineProperty(e,"prototype",{writable:!1}),t&&s(e,t)}function s(e,t){return(s=Object.setPrototypeOf?Object.setPrototypeOf.bind():function(e,t){return e.__proto__=t,e})(e,t)}function l(e){return(l="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function u(e,t){var n="undefined"!=typeof Symbol&&e[Symbol.iterator]||e["@@iterator"];if(!n){if(Array.isArray(e)||(n=function(e,t){if(e){if("string"==typeof e)return a(e,t);var n={}.toString.call(e).slice(8,-1);return"Object"===n&&e.constructor&&(n=e.constructor.name),"Map"===n||"Set"===n?Array.from(e):"Arguments"===n||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)?a(e,t):void 0}}(e))||t&&e&&"number"==typeof e.length){n&&(e=n);var r=0,i=function(){};return{s:i,n:function(){return r>=e.length?{done:!0}:{done:!1,value:e[r++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,s=!0,l=!1;return{s:function(){n=n.call(e)},n:function(){var e=n.next();return s=e.done,e},e:function(e){l=!0,o=e},f:function(){try{s||null==n.return||n.return()}finally{if(l)throw o}}}}function a(e,t){(null==t||t>e.length)&&(t=e.length);for(var n=0,r=Array(t);n<t;n++)r[n]=e[n];return r}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function f(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,d(r.key),r)}}function h(e,t,n){return t&&f(e.prototype,t),n&&f(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e}function d(e){var t=function(e,t){if("object"!=l(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var r=n.call(e,t||"default");if("object"!=l(r))return r;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==l(t)?t:t+""}var _=e("sdp-transform"),p=e("./Logger"),m=e("./Constants"),v=e("./Utils"),g=e("./NameAddrHeader"),y=e("./Grammar"),T=new p("SIPMessage"),b=function(){function e(t,n,r,i,o,s){if(c(this,e),!t||!n||!r)return null;i=i||{},this.ua=r,this.headers={},this.method=t,this.ruri=n,this.body=s,this.extraHeaders=v.cloneArray(o),this.ua.configuration.extra_headers&&(this.extraHeaders=this.extraHeaders.concat(this.ua.configuration.extra_headers)),i.route_set?this.setHeader("route",i.route_set):r.configuration.use_preloaded_route&&this.setHeader("route","<".concat(r.transport.sip_uri,";lr>")),this.setHeader("via",""),this.setHeader("max-forwards",m.MAX_FORWARDS);var l=i.to_uri||n,u=i.to_tag?{tag:i.to_tag}:null,a=void 0!==i.to_display_name?i.to_display_name:null;this.to=new g(l,a,u),this.setHeader("to",this.to.toString());var f,h=i.from_uri||r.configuration.uri,d={tag:i.from_tag||v.newTag()};f=void 0!==i.from_display_name?i.from_display_name:r.configuration.display_name?r.configuration.display_name:null,this.from=new g(h,f,d),this.setHeader("from",this.from.toString());var _=i.call_id||r.configuration.jssip_id+v.createRandomToken(15);this.call_id=_,this.setHeader("call-id",_);var p=i.cseq||Math.floor(1e4*Math.random());this.cseq=p,this.setHeader("cseq","".concat(p," ").concat(t))}return h(e,[{key:"setHeader",value:function(e,t){for(var n=new RegExp("^\\s*".concat(e,"\\s*:"),"i"),r=0;r<this.extraHeaders.length;r++)n.test(this.extraHeaders[r])&&this.extraHeaders.splice(r,1);this.headers[v.headerize(e)]=Array.isArray(t)?t:[t]}},{key:"getHeader",value:function(e){var t=this.headers[v.headerize(e)];if(t){if(t[0])return t[0]}else{var n,r=new RegExp("^\\s*".concat(e,"\\s*:"),"i"),i=u(this.extraHeaders);try{for(i.s();!(n=i.n()).done;){var o=n.value;if(r.test(o))return o.substring(o.indexOf(":")+1).trim()}}catch(e){i.e(e)}finally{i.f()}}}},{key:"getHeaders",value:function(e){var t=this.headers[v.headerize(e)],n=[];if(t){var r,i=u(t);try{for(i.s();!(r=i.n()).done;){var o=r.value;n.push(o)}}catch(e){i.e(e)}finally{i.f()}return n}var s,l=new RegExp("^\\s*".concat(e,"\\s*:"),"i"),a=u(this.extraHeaders);try{for(a.s();!(s=a.n()).done;){var c=s.value;l.test(c)&&n.push(c.substring(c.indexOf(":")+1).trim())}}catch(e){a.e(e)}finally{a.f()}return n}},{key:"hasHeader",value:function(e){if(this.headers[v.headerize(e)])return!0;var t,n=new RegExp("^\\s*".concat(e,"\\s*:"),"i"),r=u(this.extraHeaders);try{for(r.s();!(t=r.n()).done;){var i=t.value;if(n.test(i))return!0}}catch(e){r.e(e)}finally{r.f()}return!1}},{key:"parseSDP",value:function(e){return!e&&this.sdp?this.sdp:(this.sdp=_.parse(this.body||""),this.sdp)}},{key:"toString",value:function(){var e="".concat(this.method," ").concat(this.ruri," SIP/2.0\r\n");for(var t in this.headers)if(Object.prototype.hasOwnProperty.call(this.headers,t)){var n,r=u(this.headers[t]);try{for(r.s();!(n=r.n()).done;){var i=n.value;e+="".concat(t,": ").concat(i,"\r\n")}}catch(e){r.e(e)}finally{r.f()}}var o,s=u(this.extraHeaders);try{for(s.s();!(o=s.n()).done;){var l=o.value;e+="".concat(l.trim(),"\r\n")}}catch(e){s.e(e)}finally{s.f()}var a=[];switch(this.method){case m.REGISTER:a.push("path","gruu");break;case m.INVITE:this.ua.configuration.session_timers&&a.push("timer"),(this.ua.contact.pub_gruu||this.ua.contact.temp_gruu)&&a.push("gruu"),a.push("ice","replaces");break;case m.UPDATE:this.ua.configuration.session_timers&&a.push("timer"),a.push("ice")}a.push("outbound");var c=this.ua.configuration.user_agent||m.USER_AGENT;if(e+="Allow: ".concat(m.ALLOWED_METHODS,"\r\n"),e+="Supported: ".concat(a,"\r\n"),e+="User-Agent: ".concat(c,"\r\n"),this.body){var f=v.str_utf8_length(this.body);e+="Content-Length: ".concat(f,"\r\n\r\n"),e+=this.body}else e+="Content-Length: 0\r\n\r\n";return e}},{key:"clone",value:function(){var t=new e(this.method,this.ruri,this.ua);return Object.keys(this.headers).forEach(function(e){t.headers[e]=this.headers[e].slice()},this),t.body=this.body,t.extraHeaders=v.cloneArray(this.extraHeaders),t.to=this.to,t.from=this.from,t.call_id=this.call_id,t.cseq=this.cseq,t}}])}(),S=function(e){function t(e,n,i,o,s){var l;return c(this,t),(l=r(this,t,[m.INVITE,e,n,i,o,s])).transaction=null,l}return o(t,b),h(t,[{key:"cancel",value:function(e){this.transaction.cancel(e)}},{key:"clone",value:function(){var e=new t(this.ruri,this.ua);return Object.keys(this.headers).forEach(function(t){e.headers[t]=this.headers[t].slice()},this),e.body=this.body,e.extraHeaders=v.cloneArray(this.extraHeaders),e.to=this.to,e.from=this.from,e.call_id=this.call_id,e.cseq=this.cseq,e.transaction=this.transaction,e}}])}(),C=function(){return h(function e(){c(this,e),this.data=null,this.headers=null,this.method=null,this.via=null,this.via_branch=null,this.call_id=null,this.cseq=null,this.from=null,this.from_tag=null,this.to=null,this.to_tag=null,this.body=null,this.sdp=null},[{key:"addHeader",value:function(e,t){var n={raw:t};e=v.headerize(e),this.headers[e]?this.headers[e].push(n):this.headers[e]=[n]}},{key:"getHeader",value:function(e){var t=this.headers[v.headerize(e)];if(t)return t[0]?t[0].raw:void 0}},{key:"getHeaders",value:function(e){var t=this.headers[v.headerize(e)],n=[];if(!t)return[];var r,i=u(t);try{for(i.s();!(r=i.n()).done;){var o=r.value;n.push(o.raw)}}catch(e){i.e(e)}finally{i.f()}return n}},{key:"hasHeader",value:function(e){return!!this.headers[v.headerize(e)]}},{key:"parseHeader",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(e=v.headerize(e),this.headers[e]){if(!(t>=this.headers[e].length)){var n=this.headers[e][t],r=n.raw;if(n.parsed)return n.parsed;var i=y.parse(r,e.replace(/-/g,"_"));return-1===i?(this.headers[e].splice(t,1),void T.debug('error parsing "'.concat(e,'" header field with value "').concat(r,'"'))):(n.parsed=i,i)}T.debug('not so many "'.concat(e,'" headers present'))}else T.debug('header "'.concat(e,'" not present'))}},{key:"s",value:function(e,t){return this.parseHeader(e,t)}},{key:"setHeader",value:function(e,t){var n={raw:t};this.headers[v.headerize(e)]=[n]}},{key:"parseSDP",value:function(e){return!e&&this.sdp?this.sdp:(this.sdp=_.parse(this.body||""),this.sdp)}},{key:"toString",value:function(){return this.data}}])}(),E=function(e){function t(e){var n;return c(this,t),(n=r(this,t)).ua=e,n.headers={},n.ruri=null,n.transport=null,n.server_transaction=null,n}return o(t,C),h(t,[{key:"reply",value:function(e,t,n,r,i,o){var s=[],l=this.getHeader("To");if(t=t||null,!(e=e||null)||e<100||e>699)throw new TypeError("Invalid status_code: ".concat(e));if(t&&"string"!=typeof t&&!(t instanceof String))throw new TypeError("Invalid reason_phrase: ".concat(t));t=t||m.REASON_PHRASE[e]||"",n=v.cloneArray(n),this.ua.configuration.extra_headers&&(n=n.concat(this.ua.configuration.extra_headers));var a="SIP/2.0 ".concat(e," ").concat(t,"\r\n");if(this.method===m.INVITE&&e>100&&e<=200){var c,f=u(this.getHeaders("record-route"));try{for(f.s();!(c=f.n()).done;){var h=c.value;a+="Record-Route: ".concat(h,"\r\n")}}catch(e){f.e(e)}finally{f.f()}}var d,_=u(this.getHeaders("via"));try{for(_.s();!(d=_.n()).done;){var p=d.value;a+="Via: ".concat(p,"\r\n")}}catch(e){_.e(e)}finally{_.f()}!this.to_tag&&e>100?l+=";tag=".concat(v.newTag()):this.to_tag&&!this.s("to").hasParam("tag")&&(l+=";tag=".concat(this.to_tag)),a+="To: ".concat(l,"\r\n"),a+="From: ".concat(this.getHeader("From"),"\r\n"),a+="Call-ID: ".concat(this.call_id,"\r\n"),a+="CSeq: ".concat(this.cseq," ").concat(this.method,"\r\n");var g,y=u(n);try{for(y.s();!(g=y.n()).done;){var T=g.value;a+="".concat(T.trim(),"\r\n")}}catch(e){y.e(e)}finally{y.f()}switch(this.method){case m.INVITE:this.ua.configuration.session_timers&&s.push("timer"),(this.ua.contact.pub_gruu||this.ua.contact.temp_gruu)&&s.push("gruu"),s.push("ice","replaces");break;case m.UPDATE:this.ua.configuration.session_timers&&s.push("timer"),r&&s.push("ice"),s.push("replaces")}if(s.push("outbound"),this.method===m.OPTIONS?(a+="Allow: ".concat(m.ALLOWED_METHODS,"\r\n"),a+="Accept: ".concat(m.ACCEPTED_BODY_TYPES,"\r\n")):405===e?a+="Allow: ".concat(m.ALLOWED_METHODS,"\r\n"):415===e&&(a+="Accept: ".concat(m.ACCEPTED_BODY_TYPES,"\r\n")),a+="Supported: ".concat(s,"\r\n"),r){var b=v.str_utf8_length(r);a+="Content-Type: application/sdp\r\n",a+="Content-Length: ".concat(b,"\r\n\r\n"),a+=r}else a+="Content-Length: ".concat(0,"\r\n\r\n");this.server_transaction.receiveResponse(e,a,i,o)}},{key:"reply_sl",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,n=this.getHeaders("via");if(!e||e<100||e>699)throw new TypeError("Invalid status_code: ".concat(e));if(t&&"string"!=typeof t&&!(t instanceof String))throw new TypeError("Invalid reason_phrase: ".concat(t));t=t||m.REASON_PHRASE[e]||"";var r,i="SIP/2.0 ".concat(e," ").concat(t,"\r\n"),o=u(n);try{for(o.s();!(r=o.n()).done;){var s=r.value;i+="Via: ".concat(s,"\r\n")}}catch(e){o.e(e)}finally{o.f()}var l=this.getHeader("To");if(!this.to_tag&&e>100?l+=";tag=".concat(v.newTag()):this.to_tag&&!this.s("to").hasParam("tag")&&(l+=";tag=".concat(this.to_tag)),i+="To: ".concat(l,"\r\n"),i+="From: ".concat(this.getHeader("From"),"\r\n"),i+="Call-ID: ".concat(this.call_id,"\r\n"),i+="CSeq: ".concat(this.cseq," ").concat(this.method,"\r\n"),this.ua.configuration.extra_headers){var a,c=u(this.ua.configuration.extra_headers);try{for(c.s();!(a=c.n()).done;){var f=a.value;i+="".concat(f.trim(),"\r\n")}}catch(e){c.e(e)}finally{c.f()}}i+="Content-Length: ".concat(0,"\r\n\r\n"),this.transport.send(i)}}])}(),A=function(e){function t(){var e;return c(this,t),(e=r(this,t)).headers={},e.status_code=null,e.reason_phrase=null,e}return o(t,C),h(t)}();t.exports={OutgoingRequest:b,InitialOutgoingInviteRequest:S,IncomingRequest:E,IncomingResponse:A}},{"./Constants":2,"./Grammar":7,"./Logger":9,"./NameAddrHeader":11,"./Utils":28,"sdp-transform":37}],22:[function(e,t,n){"use strict";var r=e("./Logger"),i=e("./Utils"),o=e("./Grammar"),s=new r("Socket");n.isSocket=function(e){if(Array.isArray(e))return!1;if(void 0===e)return s.warn("undefined JsSIP.Socket instance"),!1;try{if(!i.isString(e.url))throw s.warn("missing or invalid JsSIP.Socket url property"),new Error("Missing or invalid JsSIP.Socket url property");if(!i.isString(e.via_transport))throw s.warn("missing or invalid JsSIP.Socket via_transport property"),new Error("Missing or invalid JsSIP.Socket via_transport property");if(-1===o.parse(e.sip_uri,"SIP_URI"))throw s.warn("missing or invalid JsSIP.Socket sip_uri property"),new Error("missing or invalid JsSIP.Socket sip_uri property")}catch(e){return!1}try{["connect","disconnect","send"].forEach(function(t){if(!i.isFunction(e[t]))throw s.warn("missing or invalid JsSIP.Socket method: ".concat(t)),new Error("Missing or invalid JsSIP.Socket method: ".concat(t))})}catch(e){return!1}return!0}},{"./Grammar":7,"./Logger":9,"./Utils":28}],23:[function(e,t,n){"use strict";var r=500;t.exports={T1:r,T2:4e3,T4:5e3,TIMER_B:32e3,TIMER_D:0,TIMER_F:32e3,TIMER_H:32e3,TIMER_I:0,TIMER_J:0,TIMER_K:0,TIMER_L:32e3,TIMER_M:32e3,PROVISIONAL_RESPONSE_INTERVAL:6e4}},{}],24:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function i(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function o(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,l(r.key),r)}}function s(e,t,n){return t&&o(e.prototype,t),n&&o(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e}function l(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var i=n.call(e,t||"default");if("object"!=r(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}function u(e,t,n){return t=a(t),function(e,t){if(t&&("object"==r(t)||"function"==typeof t))return t;if(void 0!==t)throw new TypeError("Derived constructors may only return object or undefined");return function(e){if(void 0===e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return e}(e)}(e,function(){try{var e=!Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){}))}catch(e){}return function(){return!!e}()}()?Reflect.construct(t,n||[],a(e).constructor):t.apply(e,n))}function a(e){return(a=Object.setPrototypeOf?Object.getPrototypeOf.bind():function(e){return e.__proto__||Object.getPrototypeOf(e)})(e)}function c(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function");e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,writable:!0,configurable:!0}}),Object.defineProperty(e,"prototype",{writable:!1}),t&&f(e,t)}function f(e,t){return(f=Object.setPrototypeOf?Object.setPrototypeOf.bind():function(e,t){return e.__proto__=t,e})(e,t)}var h=e("events").EventEmitter,d=e("./Logger"),_=e("./Constants"),p=e("./SIPMessage"),m=e("./Timers"),v=new d("NonInviteClientTransaction"),g=new d("InviteClientTransaction"),y=new d("AckClientTransaction"),T=new d("NonInviteServerTransaction"),b=new d("InviteServerTransaction"),S={STATUS_TRYING:1,STATUS_PROCEEDING:2,STATUS_CALLING:3,STATUS_ACCEPTED:4,STATUS_COMPLETED:5,STATUS_TERMINATED:6,STATUS_CONFIRMED:7,NON_INVITE_CLIENT:"nict",NON_INVITE_SERVER:"nist",INVITE_CLIENT:"ict",INVITE_SERVER:"ist"},C=function(e){function t(e,n,r,o){var s;i(this,t),(s=u(this,t)).type=S.NON_INVITE_CLIENT,s.id="z9hG4bK".concat(Math.floor(1e7*Math.random())),s.ua=e,s.transport=n,s.request=r,s.eventHandlers=o;var l="SIP/2.0/".concat(n.via_transport);return l+=" ".concat(e.configuration.via_host,";branch=").concat(s.id),s.request.setHeader("via",l),s.ua.newTransaction(s),s}return c(t,h),s(t,[{key:"C",get:function(){return S}},{key:"stateChanged",value:function(e){this.state=e,this.emit("stateChanged")}},{key:"send",value:function(){var e=this;this.stateChanged(S.STATUS_TRYING),this.F=setTimeout(function(){e.timer_F()},m.TIMER_F),this.transport.send(this.request)||this.onTransportError()}},{key:"onTransportError",value:function(){v.debug("transport error occurred, deleting transaction ".concat(this.id)),clearTimeout(this.F),clearTimeout(this.K),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this),this.eventHandlers.onTransportError()}},{key:"timer_F",value:function(){v.debug("Timer F expired for transaction ".concat(this.id)),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this),this.eventHandlers.onRequestTimeout()}},{key:"timer_K",value:function(){this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"receiveResponse",value:function(e){var t=this,n=e.status_code;if(n<200)switch(this.state){case S.STATUS_TRYING:case S.STATUS_PROCEEDING:this.stateChanged(S.STATUS_PROCEEDING),this.eventHandlers.onReceiveResponse(e)}else switch(this.state){case S.STATUS_TRYING:case S.STATUS_PROCEEDING:this.stateChanged(S.STATUS_COMPLETED),clearTimeout(this.F),408===n?this.eventHandlers.onRequestTimeout():this.eventHandlers.onReceiveResponse(e),this.K=setTimeout(function(){t.timer_K()},m.TIMER_K);break;case S.STATUS_COMPLETED:}}}])}(),E=function(e){function t(e,n,r,o){var s;i(this,t),(s=u(this,t)).type=S.INVITE_CLIENT,s.id="z9hG4bK".concat(Math.floor(1e7*Math.random())),s.ua=e,s.transport=n,s.request=r,s.eventHandlers=o,r.transaction=s;var l="SIP/2.0/".concat(n.via_transport);return l+=" ".concat(e.configuration.via_host,";branch=").concat(s.id),s.request.setHeader("via",l),s.ua.newTransaction(s),s}return c(t,h),s(t,[{key:"C",get:function(){return S}},{key:"stateChanged",value:function(e){this.state=e,this.emit("stateChanged")}},{key:"send",value:function(){var e=this;this.stateChanged(S.STATUS_CALLING),this.B=setTimeout(function(){e.timer_B()},m.TIMER_B),this.transport.send(this.request)||this.onTransportError()}},{key:"onTransportError",value:function(){clearTimeout(this.B),clearTimeout(this.D),clearTimeout(this.M),this.state!==S.STATUS_ACCEPTED&&(g.debug("transport error occurred, deleting transaction ".concat(this.id)),this.eventHandlers.onTransportError()),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"timer_M",value:function(){g.debug("Timer M expired for transaction ".concat(this.id)),this.state===S.STATUS_ACCEPTED&&(clearTimeout(this.B),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this))}},{key:"timer_B",value:function(){g.debug("Timer B expired for transaction ".concat(this.id)),this.state===S.STATUS_CALLING&&(this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this),this.eventHandlers.onRequestTimeout())}},{key:"timer_D",value:function(){g.debug("Timer D expired for transaction ".concat(this.id)),clearTimeout(this.B),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"sendACK",value:function(e){var t=this,n=new p.OutgoingRequest(_.ACK,this.request.ruri,this.ua,{route_set:this.request.getHeaders("route"),call_id:this.request.getHeader("call-id"),cseq:this.request.cseq});n.setHeader("from",this.request.getHeader("from")),n.setHeader("via",this.request.getHeader("via")),n.setHeader("to",e.getHeader("to")),this.D=setTimeout(function(){t.timer_D()},m.TIMER_D),this.transport.send(n)}},{key:"cancel",value:function(e){if(this.state===S.STATUS_PROCEEDING){var t=new p.OutgoingRequest(_.CANCEL,this.request.ruri,this.ua,{route_set:this.request.getHeaders("route"),call_id:this.request.getHeader("call-id"),cseq:this.request.cseq});t.setHeader("from",this.request.getHeader("from")),t.setHeader("via",this.request.getHeader("via")),t.setHeader("to",this.request.getHeader("to")),e&&t.setHeader("reason",e),this.transport.send(t)}}},{key:"receiveResponse",value:function(e){var t=this,n=e.status_code;if(n>=100&&n<=199)switch(this.state){case S.STATUS_CALLING:this.stateChanged(S.STATUS_PROCEEDING),this.eventHandlers.onReceiveResponse(e);break;case S.STATUS_PROCEEDING:this.eventHandlers.onReceiveResponse(e)}else if(n>=200&&n<=299)switch(this.state){case S.STATUS_CALLING:case S.STATUS_PROCEEDING:this.stateChanged(S.STATUS_ACCEPTED),this.M=setTimeout(function(){t.timer_M()},m.TIMER_M),this.eventHandlers.onReceiveResponse(e);break;case S.STATUS_ACCEPTED:this.eventHandlers.onReceiveResponse(e)}else if(n>=300&&n<=699)switch(this.state){case S.STATUS_CALLING:case S.STATUS_PROCEEDING:this.stateChanged(S.STATUS_COMPLETED),this.sendACK(e),this.eventHandlers.onReceiveResponse(e);break;case S.STATUS_COMPLETED:this.sendACK(e)}}}])}(),A=function(e){function t(e,n,r,o){var s;i(this,t),(s=u(this,t)).id="z9hG4bK".concat(Math.floor(1e7*Math.random())),s.transport=n,s.request=r,s.eventHandlers=o;var l="SIP/2.0/".concat(n.via_transport);return l+=" ".concat(e.configuration.via_host,";branch=").concat(s.id),s.request.setHeader("via",l),s}return c(t,h),s(t,[{key:"C",get:function(){return S}},{key:"send",value:function(){this.transport.send(this.request)||this.onTransportError()}},{key:"onTransportError",value:function(){y.debug("transport error occurred for transaction ".concat(this.id)),this.eventHandlers.onTransportError()}}])}(),w=function(e){function t(e,n,r){var o;return i(this,t),(o=u(this,t)).type=S.NON_INVITE_SERVER,o.id=r.via_branch,o.ua=e,o.transport=n,o.request=r,o.last_response="",r.server_transaction=o,o.state=S.STATUS_TRYING,e.newTransaction(o),o}return c(t,h),s(t,[{key:"C",get:function(){return S}},{key:"stateChanged",value:function(e){this.state=e,this.emit("stateChanged")}},{key:"timer_J",value:function(){T.debug("Timer J expired for transaction ".concat(this.id)),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"onTransportError",value:function(){this.transportError||(this.transportError=!0,T.debug("transport error occurred, deleting transaction ".concat(this.id)),clearTimeout(this.J),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this))}},{key:"receiveResponse",value:function(e,t,n,r){var i=this;if(100===e)switch(this.state){case S.STATUS_TRYING:this.stateChanged(S.STATUS_PROCEEDING),this.transport.send(t)||this.onTransportError();break;case S.STATUS_PROCEEDING:this.last_response=t,this.transport.send(t)?n&&n():(this.onTransportError(),r&&r())}else if(e>=200&&e<=699)switch(this.state){case S.STATUS_TRYING:case S.STATUS_PROCEEDING:this.stateChanged(S.STATUS_COMPLETED),this.last_response=t,this.J=setTimeout(function(){i.timer_J()},m.TIMER_J),this.transport.send(t)?n&&n():(this.onTransportError(),r&&r());break;case S.STATUS_COMPLETED:}}}])}(),R=function(e){function t(e,n,r){var o;return i(this,t),(o=u(this,t)).type=S.INVITE_SERVER,o.id=r.via_branch,o.ua=e,o.transport=n,o.request=r,o.last_response="",r.server_transaction=o,o.state=S.STATUS_PROCEEDING,e.newTransaction(o),o.resendProvisionalTimer=null,r.reply(100),o}return c(t,h),s(t,[{key:"C",get:function(){return S}},{key:"stateChanged",value:function(e){this.state=e,this.emit("stateChanged")}},{key:"timer_H",value:function(){b.debug("Timer H expired for transaction ".concat(this.id)),this.state===S.STATUS_COMPLETED&&b.debug("ACK not received, dialog will be terminated"),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"timer_I",value:function(){this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"timer_L",value:function(){b.debug("Timer L expired for transaction ".concat(this.id)),this.state===S.STATUS_ACCEPTED&&(this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this))}},{key:"onTransportError",value:function(){this.transportError||(this.transportError=!0,b.debug("transport error occurred, deleting transaction ".concat(this.id)),null!==this.resendProvisionalTimer&&(clearInterval(this.resendProvisionalTimer),this.resendProvisionalTimer=null),clearTimeout(this.L),clearTimeout(this.H),clearTimeout(this.I),this.stateChanged(S.STATUS_TERMINATED),this.ua.destroyTransaction(this))}},{key:"resend_provisional",value:function(){this.transport.send(this.last_response)||this.onTransportError()}},{key:"receiveResponse",value:function(e,t,n,r){var i=this;if(e>=100&&e<=199)switch(this.state){case S.STATUS_PROCEEDING:this.transport.send(t)||this.onTransportError(),this.last_response=t}if(e>100&&e<=199&&this.state===S.STATUS_PROCEEDING)null===this.resendProvisionalTimer&&(this.resendProvisionalTimer=setInterval(function(){i.resend_provisional()},m.PROVISIONAL_RESPONSE_INTERVAL));else if(e>=200&&e<=299)switch(this.state){case S.STATUS_PROCEEDING:this.stateChanged(S.STATUS_ACCEPTED),this.last_response=t,this.L=setTimeout(function(){i.timer_L()},m.TIMER_L),null!==this.resendProvisionalTimer&&(clearInterval(this.resendProvisionalTimer),this.resendProvisionalTimer=null);case S.STATUS_ACCEPTED:this.transport.send(t)?n&&n():(this.onTransportError(),r&&r())}else if(e>=300&&e<=699)switch(this.state){case S.STATUS_PROCEEDING:null!==this.resendProvisionalTimer&&(clearInterval(this.resendProvisionalTimer),this.resendProvisionalTimer=null),this.transport.send(t)?(this.stateChanged(S.STATUS_COMPLETED),this.H=setTimeout(function(){i.timer_H()},m.TIMER_H),n&&n()):(this.onTransportError(),r&&r())}}}])}();t.exports={C:S,NonInviteClientTransaction:C,InviteClientTransaction:E,AckClientTransaction:A,NonInviteServerTransaction:w,InviteServerTransaction:R,checkTransaction:function(e,t){var n,r=e._transactions;switch(t.method){case _.INVITE:if(n=r.ist[t.via_branch]){switch(n.state){case S.STATUS_PROCEEDING:n.transport.send(n.last_response);break;case S.STATUS_ACCEPTED:}return!0}break;case _.ACK:if(!(n=r.ist[t.via_branch]))return!1;if(n.state===S.STATUS_ACCEPTED)return!1;if(n.state===S.STATUS_COMPLETED)return n.state=S.STATUS_CONFIRMED,n.I=setTimeout(function(){n.timer_I()},m.TIMER_I),!0;break;case _.CANCEL:return(n=r.ist[t.via_branch])?(t.reply_sl(200),n.state!==S.STATUS_PROCEEDING):(t.reply_sl(481),!0);default:if(n=r.nist[t.via_branch]){switch(n.state){case S.STATUS_TRYING:break;case S.STATUS_PROCEEDING:case S.STATUS_COMPLETED:n.transport.send(n.last_response)}return!0}}}}},{"./Constants":2,"./Logger":9,"./SIPMessage":21,"./Timers":23,events:31}],25:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function i(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,o(r.key),r)}}function o(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var i=n.call(e,t||"default");if("object"!=r(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}var s=e("./Logger"),l=e("./Socket"),u=e("./Constants"),a=new s("Transport"),c={STATUS_CONNECTED:0,STATUS_CONNECTING:1,STATUS_DISCONNECTED:2,SOCKET_STATUS_READY:0,SOCKET_STATUS_ERROR:1,recovery_options:{min_interval:u.CONNECTION_RECOVERY_MIN_INTERVAL,max_interval:u.CONNECTION_RECOVERY_MAX_INTERVAL}};t.exports=function(){return e=function e(t){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:c.recovery_options;!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),a.debug("new()"),this.status=c.STATUS_DISCONNECTED,this.socket=null,this.sockets=[],this.recovery_options=n,this.recover_attempts=0,this.recovery_timer=null,this.close_requested=!1;try{this.textDecoder=new TextDecoder("utf8")}catch(e){a.warn("cannot use TextDecoder: ".concat(e))}if(void 0===t)throw new TypeError("Invalid argument. undefined 'sockets' argument");t instanceof Array||(t=[t]),t.forEach(function(e){if(!l.isSocket(e.socket))throw new TypeError("Invalid argument. invalid 'JsSIP.Socket' instance");if(e.weight&&!Number(e.weight))throw new TypeError("Invalid argument. 'weight' attribute is not a number");this.sockets.push({socket:e.socket,weight:e.weight||0,status:c.SOCKET_STATUS_READY})},this),this._getSocket()},(t=[{key:"via_transport",get:function(){return this.socket.via_transport}},{key:"url",get:function(){return this.socket.url}},{key:"sip_uri",get:function(){return this.socket.sip_uri}},{key:"connect",value:function(){a.debug("connect()"),this.isConnected()?a.debug("Transport is already connected"):this.isConnecting()?a.debug("Transport is connecting"):(this.close_requested=!1,this.status=c.STATUS_CONNECTING,this.onconnecting({socket:this.socket,attempts:this.recover_attempts}),this.close_requested||(this.socket.onconnect=this._onConnect.bind(this),this.socket.ondisconnect=this._onDisconnect.bind(this),this.socket.ondata=this._onData.bind(this),this.socket.connect()))}},{key:"disconnect",value:function(){a.debug("close()"),this.close_requested=!0,this.recover_attempts=0,this.status=c.STATUS_DISCONNECTED,null!==this.recovery_timer&&(clearTimeout(this.recovery_timer),this.recovery_timer=null),this.socket.onconnect=function(){},this.socket.ondisconnect=function(){},this.socket.ondata=function(){},this.socket.disconnect(),this.ondisconnect({socket:this.socket,error:!1})}},{key:"send",value:function(e){if(a.debug("send()"),!this.isConnected())return a.warn("unable to send message, transport is not connected"),!1;var t=e.toString();return a.debug("sending message:\n\n".concat(t,"\n")),this.socket.send(t)}},{key:"isConnected",value:function(){return this.status===c.STATUS_CONNECTED}},{key:"isConnecting",value:function(){return this.status===c.STATUS_CONNECTING}},{key:"_reconnect",value:function(){var e=this;this.recover_attempts+=1;var t=Math.floor(Math.random()*Math.pow(2,this.recover_attempts)+1);t<this.recovery_options.min_interval?t=this.recovery_options.min_interval:t>this.recovery_options.max_interval&&(t=this.recovery_options.max_interval),a.debug("reconnection attempt: ".concat(this.recover_attempts,". next connection attempt in ").concat(t," seconds")),this.recovery_timer=setTimeout(function(){e.close_requested||e.isConnected()||e.isConnecting()||(e._getSocket(),e.connect())},1e3*t)}},{key:"_getSocket",value:function(){var e=[];if(this.sockets.forEach(function(t){t.status!==c.SOCKET_STATUS_ERROR&&(0===e.length?e.push(t):t.weight>e[0].weight?e=[t]:t.weight===e[0].weight&&e.push(t))}),0===e.length)return this.sockets.forEach(function(e){e.status=c.SOCKET_STATUS_READY}),void this._getSocket();var t=Math.floor(Math.random()*e.length);this.socket=e[t].socket}},{key:"_onConnect",value:function(){this.recover_attempts=0,this.status=c.STATUS_CONNECTED,null!==this.recovery_timer&&(clearTimeout(this.recovery_timer),this.recovery_timer=null),this.onconnect({socket:this})}},{key:"_onDisconnect",value:function(e,t,n){this.status=c.STATUS_DISCONNECTED,this.ondisconnect({socket:this.socket,error:e,code:t,reason:n}),this.close_requested||(this.sockets.forEach(function(e){this.socket===e.socket&&(e.status=c.SOCKET_STATUS_ERROR)},this),this._reconnect(e))}},{key:"_onData",value:function(e){if("\r\n\r\n"!==e)if("\r\n"!==e){if("string"!=typeof e){try{e=this.textDecoder?this.textDecoder.decode(e):String.fromCharCode.apply(null,new Uint8Array(e))}catch(e){return void a.debug("received binary message failed to be converted into string, message discarded")}a.debug("received binary message:\n\n".concat(e,"\n"))}else a.debug("received text message:\n\n".concat(e,"\n"));this.ondata({transport:this,message:e})}else a.debug("received message with CRLF Keep Alive response");else{a.debug("received message with double-CRLF Keep Alive request");try{this.socket.send("\r\n")}catch(e){a.warn("error sending Keep Alive response: ".concat(e))}}}}])&&i(e.prototype,t),n&&i(e,n),Object.defineProperty(e,"prototype",{writable:!1}),e;var e,t,n}()},{"./Constants":2,"./Logger":9,"./Socket":22}],26:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function i(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,o(r.key),r)}}function o(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var i=n.call(e,t||"default");if("object"!=r(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}function s(e,t,n){return t=l(t),function(e,t){if(t&&("object"==r(t)||"function"==typeof t))return t;if(void 0!==t)throw new TypeError("Derived constructors may only return object or undefined");return function(e){if(void 0===e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return e}(e)}(e,function(){try{var e=!Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){}))}catch(e){}return function(){return!!e}()}()?Reflect.construct(t,n||[],l(e).constructor):t.apply(e,n))}function l(e){return(l=Object.setPrototypeOf?Object.getPrototypeOf.bind():function(e){return e.__proto__||Object.getPrototypeOf(e)})(e)}function u(e,t){return(u=Object.setPrototypeOf?Object.setPrototypeOf.bind():function(e,t){return e.__proto__=t,e})(e,t)}var a=e("events").EventEmitter,c=e("./Logger"),f=e("./Constants"),h=e("./Registrator"),d=e("./RTCSession"),_=e("./Message"),p=e("./Options"),m=e("./Transactions"),v=e("./Transport"),g=e("./Utils"),y=e("./Exceptions"),T=e("./URI"),b=e("./Parser"),S=e("./SIPMessage"),C=e("./sanityCheck"),E=e("./Config"),A=new c("UA"),w={STATUS_INIT:0,STATUS_READY:1,STATUS_USER_CLOSED:2,STATUS_NOT_READY:3,CONFIGURATION_ERROR:1,NETWORK_ERROR:2};t.exports=function(e){function t(e){var n;if(function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t),A.debug("new() [configuration:%o]",e),(n=s(this,t))._cache={credentials:{}},n._configuration=Object.assign({},E.settings),n._dynConfiguration={},n._dialogs={},n._applicants={},n._sessions={},n._transport=null,n._contact=null,n._status=w.STATUS_INIT,n._error=null,n._transactions={nist:{},nict:{},ist:{},ict:{}},n._data={},n._closeTimer=null,void 0===e)throw new TypeError("Not enough arguments");try{n._loadConfig(e)}catch(e){throw n._status=w.STATUS_NOT_READY,n._error=w.CONFIGURATION_ERROR,e}return n._registrator=new h(n),n}return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function");e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,writable:!0,configurable:!0}}),Object.defineProperty(e,"prototype",{writable:!1}),t&&u(e,t)}(t,a),n=t,o=[{key:"C",get:function(){return w}}],(r=[{key:"C",get:function(){return w}},{key:"status",get:function(){return this._status}},{key:"contact",get:function(){return this._contact}},{key:"configuration",get:function(){return this._configuration}},{key:"transport",get:function(){return this._transport}},{key:"start",value:function(){A.debug("start()"),this._status===w.STATUS_INIT?this._transport.connect():this._status===w.STATUS_USER_CLOSED?(A.debug("restarting UA"),null!==this._closeTimer&&(clearTimeout(this._closeTimer),this._closeTimer=null,this._transport.disconnect()),this._status=w.STATUS_INIT,this._transport.connect()):this._status===w.STATUS_READY?A.debug("UA is in READY status, not restarted"):A.debug("ERROR: connection is down, Auto-Recovery system is trying to reconnect"),this._dynConfiguration.register=this._configuration.register}},{key:"register",value:function(){A.debug("register()"),this._dynConfiguration.register=!0,this._registrator.register()}},{key:"unregister",value:function(e){A.debug("unregister()"),this._dynConfiguration.register=!1,this._registrator.unregister(e)}},{key:"registrator",value:function(){return this._registrator}},{key:"isRegistered",value:function(){return this._registrator.registered}},{key:"isConnected",value:function(){return this._transport.isConnected()}},{key:"call",value:function(e,t){A.debug("call()");var n=new d(this);return n.connect(e,t),n}},{key:"sendMessage",value:function(e,t,n){A.debug("sendMessage()");var r=new _(this);return r.send(e,t,n),r}},{key:"sendOptions",value:function(e,t,n){A.debug("sendOptions()");var r=new p(this);return r.send(e,t,n),r}},{key:"terminateSessions",value:function(e){for(var t in A.debug("terminateSessions()"),this._sessions)this._sessions[t].isEnded()||this._sessions[t].terminate(e)}},{key:"stop",value:function(){var e=this;if(A.debug("stop()"),this._dynConfiguration={},this._status!==w.STATUS_USER_CLOSED){this._registrator.close();var t=Object.keys(this._sessions).length;for(var n in this._sessions)if(Object.prototype.hasOwnProperty.call(this._sessions,n)){A.debug("closing session ".concat(n));try{this._sessions[n].terminate()}catch(e){}}for(var r in this._applicants)if(Object.prototype.hasOwnProperty.call(this._applicants,r))try{this._applicants[r].close()}catch(e){}this._status=w.STATUS_USER_CLOSED,0===Object.keys(this._transactions.nict).length+Object.keys(this._transactions.nist).length+Object.keys(this._transactions.ict).length+Object.keys(this._transactions.ist).length&&0===t?this._transport.disconnect():this._closeTimer=setTimeout(function(){e._closeTimer=null,e._transport.disconnect()},2e3)}else A.debug("UA already closed")}},{key:"normalizeTarget",value:function(e){return g.normalizeTarget(e,this._configuration.hostport_params)}},{key:"get",value:function(e){switch(e){case"authorization_user":return this._configuration.authorization_user;case"realm":return this._configuration.realm;case"ha1":return this._configuration.ha1;case"authorization_jwt":return this._configuration.authorization_jwt;default:return void A.warn('get() | cannot get "%s" parameter in runtime',e)}}},{key:"set",value:function(e,t){switch(e){case"authorization_user":this._configuration.authorization_user=String(t);break;case"password":this._configuration.password=String(t);break;case"realm":this._configuration.realm=String(t);break;case"ha1":this._configuration.ha1=String(t),this._configuration.password=null;break;case"authorization_jwt":this._configuration.authorization_jwt=String(t);break;case"display_name":this._configuration.display_name=t;break;case"extra_headers":this._configuration.extra_headers=t;break;default:return A.warn('set() | cannot set "%s" parameter in runtime',e),!1}return!0}},{key:"newTransaction",value:function(e){this._transactions[e.type][e.id]=e,this.emit("newTransaction",{transaction:e})}},{key:"destroyTransaction",value:function(e){delete this._transactions[e.type][e.id],this.emit("transactionDestroyed",{transaction:e})}},{key:"newDialog",value:function(e){this._dialogs[e.id]=e}},{key:"destroyDialog",value:function(e){delete this._dialogs[e.id]}},{key:"newMessage",value:function(e,t){this._applicants[e]=e,this.emit("newMessage",t)}},{key:"newOptions",value:function(e,t){this._applicants[e]=e,this.emit("newOptions",t)}},{key:"destroyMessage",value:function(e){delete this._applicants[e]}},{key:"newRTCSession",value:function(e,t){this._sessions[e.id]=e,this.emit("newRTCSession",t)}},{key:"destroyRTCSession",value:function(e){delete this._sessions[e.id]}},{key:"registered",value:function(e){this.emit("registered",e)}},{key:"unregistered",value:function(e){this.emit("unregistered",e)}},{key:"registrationFailed",value:function(e){this.emit("registrationFailed",e)}},{key:"receiveRequest",value:function(e){var t=e.method;if(e.ruri.user!==this._configuration.uri.user&&e.ruri.user!==this._contact.uri.user)return A.debug("Request-URI does not point to us"),void(e.method!==f.ACK&&e.reply_sl(404));if(e.ruri.scheme!==f.SIPS){if(!m.checkTransaction(this,e)){if(t===f.INVITE?new m.InviteServerTransaction(this,this._transport,e):t!==f.ACK&&t!==f.CANCEL&&new m.NonInviteServerTransaction(this,this._transport,e),t===f.OPTIONS){if(0===this.listeners("newOptions").length)return void e.reply(200);new p(this).init_incoming(e)}else if(t===f.MESSAGE){if(0===this.listeners("newMessage").length)return void e.reply(405);new _(this).init_incoming(e)}else if(t===f.INVITE&&!e.to_tag&&0===this.listeners("newRTCSession").length)return void e.reply(405);var n,r;if(e.to_tag)(n=this._findDialog(e.call_id,e.from_tag,e.to_tag))?n.receiveRequest(e):t===f.NOTIFY?(r=this._findSession(e))?r.receiveRequest(e):(A.debug("received NOTIFY request for a non existent subscription"),e.reply(481,"Subscription does not exist")):t!==f.ACK&&e.reply(481);else switch(t){case f.INVITE:if(window.RTCPeerConnection)if(e.hasHeader("replaces")){var i=e.replaces;(n=this._findDialog(i.call_id,i.from_tag,i.to_tag))?(r=n.owner).isEnded()?e.reply(603):r.receiveRequest(e):e.reply(481)}else(r=new d(this)).init_incoming(e);else A.warn("INVITE received but WebRTC is not supported"),e.reply(488);break;case f.BYE:e.reply(481);break;case f.CANCEL:(r=this._findSession(e))?r.receiveRequest(e):A.debug("received CANCEL request for a non existent session");break;case f.ACK:break;case f.NOTIFY:this.emit("sipEvent",{event:e.event,request:e}),e.reply(200);break;default:e.reply(405)}}}else e.reply_sl(416)}},{key:"_findSession",value:function(e){var t=e.call_id,n=e.from_tag,r=e.to_tag,i=t+n,o=this._sessions[i],s=t+r,l=this._sessions[s];return o||(l||null)}},{key:"_findDialog",value:function(e,t,n){var r=e+t+n,i=this._dialogs[r];return i||(r=e+n+t,(i=this._dialogs[r])||null)}},{key:"_loadConfig",value:function(e){try{E.load(this._configuration,e)}catch(e){throw e}0===this._configuration.display_name&&(this._configuration.display_name="0"),this._configuration.instance_id||(this._configuration.instance_id=g.newUUID()),this._configuration.jssip_id=g.createRandomToken(5);var t=this._configuration.uri.clone();t.user=null,this._configuration.hostport_params=t.toString().replace(/^sip:/i,"");try{this._transport=new v(this._configuration.sockets,{max_interval:this._configuration.connection_recovery_max_interval,min_interval:this._configuration.connection_recovery_min_interval}),this._transport.onconnecting=function(e){this.emit("connecting",e)}.bind(this),this._transport.onconnect=function(e){if(this._status===w.STATUS_USER_CLOSED)return;this._status=w.STATUS_READY,this._error=null,this.emit("connected",e),this._dynConfiguration.register&&this._registrator.register()}.bind(this),this._transport.ondisconnect=function(e){for(var t=0,n=["nict","ict","nist","ist"];t<n.length;t++){var r=n[t];for(var i in this._transactions[r])Object.prototype.hasOwnProperty.call(this._transactions[r],i)&&this._transactions[r][i].onTransportError()}this.emit("disconnected",e),this._registrator.onTransportClosed(),this._status!==w.STATUS_USER_CLOSED&&(this._status=w.STATUS_NOT_READY,this._error=w.NETWORK_ERROR)}.bind(this),this._transport.ondata=function(e){var t=e.transport,n=e.message;if(!(n=b.parseMessage(n,this)))return;if(this._status===w.STATUS_USER_CLOSED&&n instanceof S.IncomingRequest)return;if(!C(n,this,t))return;if(n instanceof S.IncomingRequest)n.transport=t,this.receiveRequest(n);else if(n instanceof S.IncomingResponse){var r;switch(n.method){case f.INVITE:(r=this._transactions.ict[n.via_branch])&&r.receiveResponse(n);break;case f.ACK:break;default:(r=this._transactions.nict[n.via_branch])&&r.receiveResponse(n)}}}.bind(this)}catch(e){throw A.warn(e),new y.ConfigurationError("sockets",this._configuration.sockets)}if(delete this._configuration.sockets,this._configuration.authorization_user||(this._configuration.authorization_user=this._configuration.uri.user),!this._configuration.registrar_server){var n=this._configuration.uri.clone();n.user=null,n.clearParams(),n.clearHeaders(),this._configuration.registrar_server=n}this._configuration.no_answer_timeout*=1e3,this._configuration.contact_uri?this._configuration.via_host=this._configuration.contact_uri.host:this._configuration.contact_uri=new T("sip",g.createRandomToken(8),this._configuration.via_host,null,{transport:"ws"}),this._contact={pub_gruu:null,temp_gruu:null,uri:this._configuration.contact_uri,toString:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=e.anonymous||null,n=e.outbound||null,r="<";return r+=t?this.temp_gruu||"sip:anonymous@anonymous.invalid;transport=ws":this.pub_gruu||this.uri.toString(),!n||(t?this.temp_gruu:this.pub_gruu)||(r+=";ob"),r+=">"}};var r=["authorization_user","password","realm","ha1","authorization_jwt","display_name","register","extra_headers"];for(var i in this._configuration)Object.prototype.hasOwnProperty.call(this._configuration,i)&&(-1!==r.indexOf(i)?Object.defineProperty(this._configuration,i,{writable:!0,configurable:!1}):Object.defineProperty(this._configuration,i,{writable:!1,configurable:!1}));for(var o in A.debug("configuration parameters after validation:"),this._configuration)if(Object.prototype.hasOwnProperty.call(E.settings,o))switch(o){case"uri":case"registrar_server":A.debug("- ".concat(o,": ").concat(this._configuration[o]));break;case"password":case"ha1":case"authorization_jwt":A.debug("- ".concat(o,": NOT SHOWN"));break;default:A.debug("- ".concat(o,": ").concat(JSON.stringify(this._configuration[o])))}}}])&&i(n.prototype,r),o&&i(n,o),Object.defineProperty(n,"prototype",{writable:!1}),n;var n,r,o}()},{"./Config":1,"./Constants":2,"./Exceptions":6,"./Logger":9,"./Message":10,"./Options":12,"./Parser":13,"./RTCSession":14,"./Registrator":19,"./SIPMessage":21,"./Transactions":24,"./Transport":25,"./URI":27,"./Utils":28,"./sanityCheck":30,events:31}],27:[function(e,t,n){"use strict";function r(e){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function i(e,t){var n="undefined"!=typeof Symbol&&e[Symbol.iterator]||e["@@iterator"];if(!n){if(Array.isArray(e)||(n=function(e,t){if(e){if("string"==typeof e)return o(e,t);var n={}.toString.call(e).slice(8,-1);return"Object"===n&&e.constructor&&(n=e.constructor.name),"Map"===n||"Set"===n?Array.from(e):"Arguments"===n||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)?o(e,t):void 0}}(e))||t&&e&&"number"==typeof e.length){n&&(e=n);var r=0,i=function(){};return{s:i,n:function(){return r>=e.length?{done:!0}:{done:!1,value:e[r++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var s,l=!0,u=!1;return{s:function(){n=n.call(e)},n:function(){var e=n.next();return l=e.done,e},e:function(e){u=!0,s=e},f:function(){try{l||null==n.return||n.return()}finally{if(u)throw s}}}}function o(e,t){(null==t||t>e.length)&&(t=e.length);for(var n=0,r=Array(t);n<t;n++)r[n]=e[n];return r}function s(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,l(r.key),r)}}function l(e){var t=function(e,t){if("object"!=r(e)||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var i=n.call(e,t||"default");if("object"!=r(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==r(t)?t:t+""}var u=e("./Constants"),a=e("./Utils"),c=e("./Grammar");t.exports=function(){function e(t,n,r,i){var o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:{},s=arguments.length>5&&void 0!==arguments[5]?arguments[5]:{};if(function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),!r)throw new TypeError('missing or invalid "host" parameter');for(var l in this._parameters={},this._headers={},this._scheme=t||u.SIP,this._user=n,this._host=r,this._port=i,o)Object.prototype.hasOwnProperty.call(o,l)&&this.setParam(l,o[l]);for(var a in s)Object.prototype.hasOwnProperty.call(s,a)&&this.setHeader(a,s[a])}return t=e,r=[{key:"parse",value:function(e){return-1!==(e=c.parse(e,"SIP_URI"))?e:void 0}}],(n=[{key:"scheme",get:function(){return this._scheme},set:function(e){this._scheme=e.toLowerCase()}},{key:"user",get:function(){return this._user},set:function(e){this._user=e}},{key:"host",get:function(){return this._host},set:function(e){this._host=e.toLowerCase()}},{key:"port",get:function(){return this._port},set:function(e){this._port=0===e?e:parseInt(e,10)||null}},{key:"setParam",value:function(e,t){e&&(this._parameters[e.toLowerCase()]=null==t?null:t.toString())}},{key:"getParam",value:function(e){if(e)return this._parameters[e.toLowerCase()]}},{key:"hasParam",value:function(e){if(e)return!!this._parameters.hasOwnProperty(e.toLowerCase())}},{key:"deleteParam",value:function(e){if(e=e.toLowerCase(),this._parameters.hasOwnProperty(e)){var t=this._parameters[e];return delete this._parameters[e],t}}},{key:"clearParams",value:function(){this._parameters={}}},{key:"setHeader",value:function(e,t){this._headers[a.headerize(e)]=Array.isArray(t)?t:[t]}},{key:"getHeader",value:function(e){if(e)return this._headers[a.headerize(e)]}},{key:"hasHeader",value:function(e){if(e)return!!this._headers.hasOwnProperty(a.headerize(e))}},{key:"deleteHeader",value:function(e){if(e=a.headerize(e),this._headers.hasOwnProperty(e)){var t=this._headers[e];return delete this._headers[e],t}}},{key:"clearHeaders",value:function(){this._headers={}}},{key:"clone",value:function(){return new e(this._scheme,this._user,this._host,this._port,JSON.parse(JSON.stringify(this._parameters)),JSON.parse(JSON.stringify(this._headers)))}},{key:"toString",value:function(){var e=[],t="".concat(this._scheme,":");for(var n in this._user&&(t+="".concat(a.escapeUser(this._user),"@")),t+=this._host,(this._port||0===this._port)&&(t+=":".concat(this._port)),this._parameters)Object.prototype.hasOwnProperty.call(this._parameters,n)&&(t+=";".concat(n),null!==this._parameters[n]&&(t+="=".concat(this._parameters[n])));for(var r in this._headers)if(Object.prototype.hasOwnProperty.call(this._headers,r)){var 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%s"},{name:"bundleOnly",reg:/^(bundle-only)/},{name:"label",reg:/^label:(.+)/,format:"label:%s"},{name:"sctpPort",reg:/^sctp-port:(\d+)$/,format:"sctp-port:%s"},{name:"maxMessageSize",reg:/^max-message-size:(\d+)$/,format:"max-message-size:%s"},{push:"tsRefClocks",reg:/^ts-refclk:([^\s=]*)(?:=(\S*))?/,names:["clksrc","clksrcExt"],format:function(e){return"ts-refclk:%s"+(null!=e.clksrcExt?"=%s":"")}},{name:"mediaClk",reg:/^mediaclk:(?:id=(\S*))? *([^\s=]*)(?:=(\S*))?(?: *rate=(\d+)\/(\d+))?/,names:["id","mediaClockName","mediaClockValue","rateNumerator","rateDenominator"],format:function(e){var t="mediaclk:";return t+=null!=e.id?"id=%s %s":"%v%s",t+=null!=e.mediaClockValue?"=%s":"",t+=null!=e.rateNumerator?" rate=%s":"",t+=null!=e.rateDenominator?"/%s":""}},{name:"keywords",reg:/^keywds:(.+)$/,format:"keywds:%s"},{name:"content",reg:/^content:(.+)/,format:"content:%s"},{name:"bfcpFloorCtrl",reg:/^floorctrl:(c-only|s-only|c-s)/,format:"floorctrl:%s"},{name:"bfcpConfId",reg:/^confid:(\d+)/,format:"confid:%s"},{name:"bfcpUserId",reg:/^userid:(\d+)/,format:"userid:%s"},{name:"bfcpFloorId",reg:/^floorid:(.+) (?:m-stream|mstrm):(.+)/,names:["id","mStream"],format:"floorid:%s mstrm:%s"},{push:"invalid",names:["value"]}]};Object.keys(r).forEach(function(e){r[e].forEach(function(e){e.reg||(e.reg=/(.*)/),e.format||(e.format="%s")})})},{}],37:[function(e,t,n){var r=e("./parser"),i=e("./writer"),o=e("./grammar");n.grammar=o,n.write=i,n.parse=r.parse,n.parseParams=r.parseParams,n.parseFmtpConfig=r.parseFmtpConfig,n.parsePayloads=r.parsePayloads,n.parseRemoteCandidates=r.parseRemoteCandidates,n.parseImageAttributes=r.parseImageAttributes,n.parseSimulcastStreamList=r.parseSimulcastStreamList},{"./grammar":36,"./parser":38,"./writer":39}],38:[function(e,t,n){var r=function(e){return String(Number(e))===e?Number(e):e},i=function(e,t,n){var i=e.name&&e.names;e.push&&!t[e.push]?t[e.push]=[]:i&&!t[e.name]&&(t[e.name]={});var o=e.push?{}:i?t[e.name]:t;!function(e,t,n,i){if(i&&!n)t[i]=r(e[1]);else for(var o=0;o<n.length;o+=1)null!=e[o+1]&&(t[n[o]]=r(e[o+1]))}(n.match(e.reg),o,e.names,e.name),e.push&&t[e.push].push(o)},o=e("./grammar"),s=RegExp.prototype.test.bind(/^([a-z])=(.*)/);n.parse=function(e){var t={},n=[],r=t;return e.split(/(\r\n|\r|\n)/).filter(s).forEach(function(e){var t=e[0],s=e.slice(2);"m"===t&&(n.push({rtp:[],fmtp:[]}),r=n[n.length-1]);for(var l=0;l<(o[t]||[]).length;l+=1){var u=o[t][l];if(u.reg.test(s))return i(u,r,s)}}),t.media=n,t};var l=function(e,t){var n=t.split(/=(.+)/,2);return 2===n.length?e[n[0]]=r(n[1]):1===n.length&&t.length>1&&(e[n[0]]=void 0),e};n.parseParams=function(e){return e.split(/;\s?/).reduce(l,{})},n.parseFmtpConfig=n.parseParams,n.parsePayloads=function(e){return e.toString().split(" ").map(Number)},n.parseRemoteCandidates=function(e){for(var t=[],n=e.split(" ").map(r),i=0;i<n.length;i+=3)t.push({component:n[i],ip:n[i+1],port:n[i+2]});return t},n.parseImageAttributes=function(e){return e.split(" ").map(function(e){return e.substring(1,e.length-1).split(",").reduce(l,{})})},n.parseSimulcastStreamList=function(e){return e.split(";").map(function(e){return e.split(",").map(function(e){var t,n=!1;return"~"!==e[0]?t=r(e):(t=r(e.substring(1,e.length)),n=!0),{scid:t,paused:n}})})}},{"./grammar":36}],39:[function(e,t,n){var r=e("./grammar"),i=/%[sdv%]/g,o=function(e,t,n){var r=[e+"="+(t.format instanceof Function?t.format(t.push?n:n[t.name]):t.format)];if(t.names)for(var o=0;o<t.names.length;o+=1){var s=t.names[o];t.name?r.push(n[t.name][s]):r.push(n[t.names[o]])}else r.push(n[t.name]);return function(e){var t=1,n=arguments,r=n.length;return e.replace(i,function(e){if(t>=r)return e;var i=n[t];switch(t+=1,e){case"%%":return"%";case"%s":return String(i);case"%d":return Number(i);case"%v":return""}})}.apply(null,r)},s=["v","o","s","i","u","e","p","c","b","t","r","z","a"],l=["i","c","b","a"];t.exports=function(e,t){t=t||{},null==e.version&&(e.version=0),null==e.name&&(e.name=" "),e.media.forEach(function(e){null==e.payloads&&(e.payloads="")});var n=t.outerOrder||s,i=t.innerOrder||l,u=[];return n.forEach(function(t){r[t].forEach(function(n){n.name in e&&null!=e[n.name]?u.push(o(t,n,e)):n.push in e&&null!=e[n.push]&&e[n.push].forEach(function(e){u.push(o(t,n,e))})})}),e.media.forEach(function(e){u.push(o("m",r.m[0],e)),i.forEach(function(t){r[t].forEach(function(n){n.name in e&&null!=e[n.name]?u.push(o(t,n,e)):n.push in e&&null!=e[n.push]&&e[n.push].forEach(function(e){u.push(o(t,n,e))})})})}),u.join("\r\n")+"\r\n"}},{"./grammar":36}],40:[function(e,t,n){t.exports={name:"jssip",title:"JsSIP",description:"the Javascript SIP library",version:"3.10.1",homepage:"https://jssip.net",contributors:["José Luis Millán <jmillan@aliax.net> (https://github.com/jmillan)","Iñaki Baz Castillo <ibc@aliax.net> (https://inakibaz.me)"],types:"lib/JsSIP.d.ts",main:"lib-es5/JsSIP.js",keywords:["sip","websocket","webrtc","node","browser","library"],license:"MIT",repository:{type:"git",url:"https://github.com/versatica/JsSIP.git"},bugs:{url:"https://github.com/versatica/JsSIP/issues"},dependencies:{"@types/events":"^3.0.0","@types/debug":"^4.1.7",debug:"^4.3.1",events:"^3.3.0","sdp-transform":"^2.14.1"},devDependencies:{"@babel/core":"^7.19.6","@babel/preset-env":"^7.19.4","ansi-colors":"^3.2.4",browserify:"^16.5.1",eslint:"^5.16.0","fancy-log":"^1.3.3",gulp:"^4.0.2","gulp-babel":"^8.0.0","gulp-eslint":"^5.0.0","gulp-expect-file":"^1.0.2","gulp-header":"^2.0.9","gulp-nodeunit-runner":"^0.2.2","gulp-plumber":"^1.2.1","gulp-rename":"^1.4.0","gulp-uglify-es":"^1.0.4",pegjs:"^0.7.0","vinyl-buffer":"^1.0.1","vinyl-source-stream":"^2.0.0"},scripts:{lint:"node npm-scripts.js lint",test:"node npm-scripts.js test",prepublish:"node npm-scripts.js prepublish",release:"node npm-scripts.js release"}}},{}]},{},[8])(8)});
\ No newline at end of file
diff --git a/lib/RTCSession.js b/lib/RTCSession.js
index 7a1dfd63f..51d3beb0d 100644
--- a/lib/RTCSession.js
+++ b/lib/RTCSession.js
@@ -1420,7 +1420,23 @@ module.exports = class RTCSession extends EventEmitter
   {
     logger.debug('sendRequest()');
 
-    return this._dialog.sendRequest(method, options);
+    if (this._dialog)
+    {
+      return this._dialog.sendRequest(method, options);
+    }
+    else
+    {
+      const dialogsArray = Object.values(this._earlyDialogs);
+
+      if (dialogsArray.length > 0)
+      {
+        return dialogsArray[0].sendRequest(method, options);
+      }
+
+      logger.warn('No valid early dialog found to send request');
+
+      return;
+    }
   }
 
   /**
@@ -2060,6 +2076,10 @@ module.exports = class RTCSession extends EventEmitter
       {
         early_dialog.update(message, type);
         this._dialog = early_dialog;
+        // When an early dialog is promoted to a confirmed dialog (e.g., after calling an IVR menu),
+        // the local CSeq must be synchronized
+        // with the value from the 200 OK response to keep the dialog sequence in sync.
+        this._dialog._local_seqnum = message.cseq;
         delete this._earlyDialogs[id];
 
         return true;
diff --git a/lib/RTCSession/DTMF.js b/lib/RTCSession/DTMF.js
index e86bb93ca..b296bae25 100644
--- a/lib/RTCSession/DTMF.js
+++ b/lib/RTCSession/DTMF.js
@@ -47,8 +47,11 @@ module.exports = class DTMF extends EventEmitter
     this._direction = 'outgoing';
 
     // Check RTCSession Status.
-    if (this._session.status !== this._session.C.STATUS_CONFIRMED &&
-      this._session.status !== this._session.C.STATUS_WAITING_FOR_ACK)
+    if (
+      this._session.status !== this._session.C.STATUS_CONFIRMED &&
+      this._session.status !== this._session.C.STATUS_WAITING_FOR_ACK &&
+      this._session.status !== this._session.C.STATUS_1XX_RECEIVED
+    )
     {
       throw new Exceptions.InvalidStateError(this._session.status);
     }