v=0
o=Mozilla-SIPUA-35.0a1 27987 0 IN IP4 0.0.0.0
s=SIP Call
t=0 0
a=ice-ufrag:8a39d2ae
a=ice-pwd:601d53aba51a318351b3ecf5ee00048f
a=fingerprint:sha-256 30:FF:8E:2B:AC:9D:ED:70:18:10:67:C8:AE:9E:68:F3:86:53:51:B0:AC:31:B7:BE:6D:CF:A4:2E:D3:6E:B4:28
m=audio 9 RTP/SAVPF 109 9 0 8 101
c=IN IP4 0.0.0.0
a=rtpmap:109 opus/48000/2
a=ptime:20
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv
a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
a=extmap:2/sendonly some_extension
a=extmap:3 some_other_extension some_params some more params
a=setup:actpass
a=rtcp-mux
m=video 9 RTP/SAVPF 120 126 97
c=IN IP4 0.0.0.0
a=rtpmap:120 VP8/90000
a=rtpmap:126 H264/90000
a=rtpmap:97 H264/90000
a=sendrecv
a=rtcp-fb:120 ack rpsi
a=rtcp-fb:120 ack app foo
a=rtcp-fb:120 ack foo
a=rtcp-fb:120 nack
a=rtcp-fb:120 nack sli
a=rtcp-fb:120 nack pli
a=rtcp-fb:120 nack rpsi
a=rtcp-fb:120 nack app foo
a=rtcp-fb:120 nack foo
a=rtcp-fb:120 ccm fir
a=rtcp-fb:120 ccm tmmbr
a=rtcp-fb:120 ccm tstr
a=rtcp-fb:120 ccm vbcm
a=rtcp-fb:120 ccm foo
a=rtcp-fb:120 trr-int 10
a=rtcp-fb:120 goog-remb
a=rtcp-fb:120 foo
a=rtcp-fb:126 nack
a=rtcp-fb:126 nack pli
a=rtcp-fb:126 ccm fir
a=rtcp-fb:97 nack
a=rtcp-fb:97 nack pli
a=rtcp-fb:97 ccm fir
a=rtcp-fb:* ccm tmmbr
a=setup:actpass
a=rtcp-mux
m=application 9 DTLS/SCTP 5000
c=IN IP4 0.0.0.0
a=sctpmap:5000 webrtc-datachannel 16
a=setup:actpass