Enable recording for Exotel masked calls

[mahalakshme]

Ticket: https://avni.freshdesk.com/a/tickets/3264

AC:

Since the Exotel API has changed without backward compatibility being provided(v1 version of API call we are using has changed) in callMasking method set the Record parameter to true.

To test:

Test using Exotel credentials available in Keeweb.

Reference:

https://developer.exotel.com/api/make-a-call-api#call-customer

[ashusvnath]

@mahalakshme : Should "Record" be set to true for all calls or will it be part of request parameter ?

[vinayvenu]

@mahalakshme This is temporarily ok to go. We need a followup where we make this value configurable in the exotel configuration.

[ashusvnath]

@vinayvenu : I verified that the Record parameter accepts the sting 'true' by manually invoking API using postman.

[mahalakshme]

@ashusvnath commit needs to be also put in 5.1 branch for 5.1.3 release

[ashusvnath]

@mahalakshme Done

[himeshr]

Using Exotel GET Bulk CallDetails APIs, we verified that the recordingUrl is available for the calls made with this fix.