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

Jeff Pyle jeff.pyle at fidelityvoice.com
Tue Dec 8 15:21:26 CET 2015

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:

o=FreeSWITCH 1449573019 1449573020 IN IP4
c=IN IP4
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.

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