Welcome to doubango project!

3GPP IMS (IP Multimedia Subsystem) is the next generation network for delivering IP multimedia services. IMS is standardized by the 3rd Generation Partnership Project (3GPP). IMS services could be used over any type of network, such as 3GPP LTE, GPRS, Wireless LAN, CDMA2000 or fixed line.

doubango is a mature, open source, 3GPP IMS/LTE framework for both embedded and desktop systems. The framework is written in ANSI-C to ease portability and has been carefully designed to efficiently work on embedded systems with limited memory and low computing power and to be extremely portable. doubango supports both Voice and SMS over LTE as defined by the One Voice initiative.

Features

• Private extension headers for 3GPP
• UDP, TCP and TLS
• Proxy-CSCF discovery using DHCPv4/v6 or/and DNS NAPTR
• NAT Traversal (STUN, TURN and ICE)
• SIP SIMPLE (Presence Subscription/Publication and Pager Mode IM)
• MMTel (UNI)
• MMTel Supplementary Services (3GPP TS 24.173, 24.607, 24.608, 24.604, 24.611, 24.610, 24.606, 24.615 and 24.605)
• Ad-Hoc Multi Party Conference (3GPP TS 24.605)
• Communication Waiting(3GPP TS 24.615)
• Message Waiting Indication(3GPP TS 24.606 and RFC 3842)
• Originating/Terminating Identification Restriction(3GPP TS 24.607/608)
• Communication Diversion(3GPP TS 24.604)
• Communication Barring(3GPP TS 24.611)
• SDP (RFC 3264)
• Audio/Video (AMR, Speex, G.729, G.722, Opus, G.711, GSM, iLBC, VP8, H.264, H.263, Theora, MP4V-ES...)
• Full HD (1080p) video
• T.140: Text Over IP (http://en.wikipedia.org/wiki/Text_over_IP)
• ...and many other features

Projects

tinySAK (tiny Swiss Army Knife)

Prefix: tsk

Dependencies: None

Features:

• ANSI-C Object Programing
• Linked lists
• String utility functions
• Memory management
• Dynamic buffers
• Threading
• Runnable
• Mutexes
• Semaphores
• Conditional Variables
• Timers
• Time
• Final State Machine (FSM) manager
• Base64 encoder/decoder
• UUID generator
• CRC32 and CRC16
• URL encoder/decoder
• SHA-1, MD5, HMAC-MD5, HMAC-SHA-1

tinyNET (Networking)

Prefix: tnet

Dependencies:

• tinySAK

Features:

• IPv4/IPv6 Sockets (UDP, TCP, TLS and SCTP)
• DHCPv4/v6
• DNS (NAPTR, PTR, SRV, MX, A, AAAA, OPT, CNAME ...)
• ENUM
• NAT Traversal (STUN, TURN and ICE)

tinyHTTP (HTTP/HTTPS stack)

Prefix: thttp

Dependencies:

• tinySAK
• tinyNET

Features:

• Digest/Basic Authentication
• Pipelining
• CONNECT, DELETE, GET, HEAD, OPTIONS, PATCH, POST, PUT and TRACE

tinyXCAP (XML Configuration Access Protocol)

Prefix: txcap

Dependencies:

• tinySAK
• tinyNET
• tinyHTTP

Features:

• 3GPP 24.623, RFC 4825
• AUID manager
• URL generator

tinySMS (Binary SMS over IMS/LTE networks)

Prefix: tsms

Dependencies:

• tinySAK

Features:

• SM-TL (3GPP TS 23.040)
• SM-RL (3GPP TS 24.011)
• SMS over 3GPP IMS/LTE networks (3GPP TS 24.341)

tinySigComp (Signalling Compression)

Prefix: tcomp

Dependencies:

• tinySAK

Features:

• Stream and Dgram compression/decompression (RFC 3320, 3485, 4077, 4464, 4465, 4896, 5049, 5112 and 1951)
• SIP/SDP and Presence dictionaries
• Deflate Compressor
• UDVM

tinyIPSec (IPSec)

Prefix: tipsec

Dependencies:

• tinySAK

Features:

• Mode: Transport and Tunnel
• Protocol: AH, ESP or both
• IP Protocol: UDP and TCP
• Algorithm: HMAC-MD5-96 and HMAC-SHA-1-96
• Encryption Algorithm: NULL, DES-EDE3-CBC and AES

tinySDP (Session Description Protocol)

Prefix: tsdp

Dependencies:

• tinySAK

Features:

• SDP Offer Answer (RFC 3262)

tinyMSRP (Message Session Relay Protocol)

Prefix: tmsrp

Dependencies:

• tinySDP

Features:

• Large Message IM (RFC 4975 and OMA SIMPLE IM)
• File Transfer (RFC 5547)
• Image Sharing (GSMA IR.79)

tinyMEDIA (Audio, Video, File Transfer ...)

Prefix: tmedia

Dependencies:

• tinySAK
• tinyNET
• tinySDP

Features:

• Plugins
• Codecs

tinyROHC (Robust Header Compression)

Prefix: trohc

Dependencies: None

Features:

tinyRTP (Real-time Transport Protocol)

Prefix: trtp

Dependencies:

• tinySAK
• tinyNET
• tinyMEDIA

Features:

• (S)RTP and (S)RTCP
• (S)AVP, (S)AVP(F) and UDP/TLS/RTP/(S)AVP(F) profiles
• DTLS-SRTP(RFC 5763 and 5764)

tinySIP (Session Initiation Protocol)

Prefix: tsip

Dependencies:

• tinySAK
• tinyNET
• tinySDP
• tinyMEDIA
• tinyHTTP
• tinyIPSec

Features:

• SIP (RFC 3261, 3GPP TS 24.229 Rel-9)
• IMS-AKA (RFC 3310, 3GPP TS 33.203, 35.205, 35.206, 35.207, 35.208 and 35.909)
• IPv4/IPv6 dual stack
• UDP, TCP, TLS and SCTP transports
• Service-Route Discovery (RFC 3608)
• Proxy-CSCF discovery using DHCPv4/v6 or/and DNS
• NAPTR+SRV
• SigComp
• IPSec
• Security Agreement (RFC 3329)
• NAT Traversal (STUN, TURN and ICE)
• Preconditions (RFC 3312, 4032 and 5027)
• SMS over IP (3GPP TS 23.038, 24.040, 24.011, 24.341 and 24.451)
• ENUM (RFC 3761)
• The tel URI for Telephone Numbers (RFC 3966)
• SIP SIMPLE (Presence subsciption/publication, Pager Mode IM, ...)
• MMTel (UNI)
• SDP Offer-Answer (SOA)
• Session Timers
• File transfer (RFC 5547) and Image Sharing(GSMA IR.79)
• Large Message IM (OMA SIMPLE IM)

Proof Of Concept

Client-side components

• Boghe
  • SIP Video Client for Windows Phone 8 and Surface Pro
  • IMS/RCS Client for Windows XP, Vista, 7 and 8
• IMSDroid
  • SIP/IMS Client for Android
• iDoubs
  • SIP/IMS VideoPhone for iOS (iPhone, iPad and iPod Touch) and MAC OS X

Server-side components

• webrtc2sip
  • Smart SIP and Media Gateway to connect WebRTC endpoints to any SIP-legacy network
• telepresence
  • the open source SIP TelePresence system with a porwerfull MCU
• Flash2IMS
  • Adobe® Flash® to SIP/IMS Gateway.

See also:

• webrtc4all
• sipML5
• click2dial

Building

cmake -S . -B out --graphviz=out/dep.dot dot -Tpng -o out/dep.png out/dep.dot
cmake --build out/ -j 16
cd out/
ctest -V

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