[OpenSIPS-Users] How to view bitrate, sampling rate and frame size during a SIP call?

[Jeff Pyle]

OpenSIPS doesn't handle media so it has no knowledge of these things.  You
could glean some of this information by inspecting the offer and answer
SDPs as they pass through.  For example, here is an answer SDP that passed
through reply_route attached to a 200 OK:

v=0.
o=FreeSWITCH 1449573019 1449573020 IN IP4 192.168.5.5.
s=FreeSWITCH.
c=IN IP4 192.168.5.5.
t=0 0.
m=audio 11158 RTP/AVP 9 101.
a=rtpmap:9 G722/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=ptime:20.