Does Asterisk support upgrading the media when a Re-Invite comes in? The flow is as follows:
- INVITE comes in from a trunk with Audio only in the SDP
- After the call is ANSWERED, the remote side sends a Re-INVITE with Audio & Video in the SDP.
Looking at the Wireshark, it seems like Asterisk responded to the RE-INVITE.
Following is the SDP that was in the RE-INVITE
v=0 o=inbcf 1936544892 2 IN IP4 172.25.52.69 s=inbcf_1971237465 c=IN IP4 172.25.52.69 t=0 0 m=audio 20076 RTP/AVP 0 a=rtpmap:0 PCMU/8000 m=video 20078 RTP/AVP 96 a=rtpmap:96 H264/90000 a=fmtp:96 profile-level-id=42801f
Following is the OK which Asterisk responded with
v=0 o=root 342471461 342471462 IN IP4 172.25.54.153 s=Asterisk PBX 17.8.1 c=IN IP4 172.25.54.153 t=0 0 m=audio 15504 RTP/AVP 0 a=rtpmap:0 PCMU/8000 a=maxptime:150 a=sendrecv m=video 0 RTP/AVP 96
Looks like there was a similar issue reported which seem to have been resolve. However, I’m experiencing the same behavior.