[reSIProcate] reCon default SDP issues (fmtp, DTMF, ptime)
a=fmtp:105 0-15
- should we include anything else in the default, e.g. 0-16?
https://github.com/resiprocate/resiprocate/blob/master/resip/recon/ConversationManager.cxx#L621
a=ptime:20
https://tools.ietf.org/html/rfc4566#section-6
- code comment suggests it is troublesome
https://github.com/resiprocate/resiprocate/blob/master/resip/recon/ConversationManager.cxx#L645
- should we just leave it out by default, will it cause problems for
anybody if I remove it?
a=rtpmap:105 TELEPHONE-EVENT/8000
- uppercase TELEPHONE-EVENT is valid but appears to cause issues with
Polycom
https://community.polycom.com/t5/VoIP-SIP-Phones/VVX-and-Soundpoint-not-sending-DTMF-when-telephone-event-not/m-p/101622/highlight/false