v=0
o=- 20518 0 IN IP4 0.0.0.0
s=-
t=0 0
a=group:BUNDLE audio video
a=group:LS audio video
a=ice-options:trickle
m=audio 54609 UDP/TLS/RTP/SAVPF 109
c=IN IP4 203.0.113.141
a=mid:audio
a=msid:ma ta 
a=sendrecv
a=rtpmap:109 opus/48000/2
a=maxptime:120
a=ice-ufrag:074c6550
a=ice-pwd:a28a397a4c3f31747d1ee3474af08a068
a=fingerprint:sha-256 19:E2:1C:3B:4B:9F:81:E6:B8:5C:F4:A5:A8:D8:73:04:BB:05:2F:70:9F:04:A9:0E:05:E9:26:33:E8:70:88:A2
a=setup:actpass
a=tls-id:89J2LRATQ3ULA24G9AHWVR31VJWSLB68
a=rtcp-mux
a=rtcp:54610 IN IP4 203.0.113.141
a=rtcp-rsize
a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
a=extmap:2 urn:ietf:params:rtp-hdrext:sdes:mid
a=candidate:0 1 UDP 2122194687 192.0.2.4 61665 typ host
a=candidate:1 1 UDP 1685987071 203.0.113.141 54609 typ srflx raddr 192.0.2.4 rport 61665
a=candidate:0 2 UDP 2122194687 192.0.2.4 61666 typ host
a=candidate:1 2 UDP 1685987071 203.0.113.141 54610 typ srflx raddr 192.0.2.4 rport 61666
m=video 62537 UDP/TLS/RTP/SAVPF 120
c=IN IP4 203.0.113.141
a=mid:video
a=msid:ma tb 
a=sendrecv
a=rtpmap:120 VP8/90000
a=ice-ufrag:6550074c
a=ice-pwd:74af08a068a28a397a4c3f31747d1ee34
a=fingerprint:sha-256 19:E2:1C:3B:4B:9F:81:E6:B8:5C:F4:A5:A8:D8:73:04:BB:05:2F:70:9F:04:A9:0E:05:E9:26:33:E8:70:88:A2
a=setup:actpass
a=tls-id:UKA29UQLTF69OJW4WNPNUO2Y0GF1FJOZ
a=rtcp-mux
a=rtcp:62538 IN IP4 203.0.113.141
a=rtcp-rsize
a=rtcp-fb:120 nack
a=rtcp-fb:120 nack pli
a=rtcp-fb:120 ccm fir
a=extmap:2 urn:ietf:params:rtp-hdrext:sdes:mid
a=candidate:0 1 UDP 2122194687 192.0.2.4 61886 typ host
a=candidate:1 1 UDP 1685987071 203.0.113.141 62537 typ srflx raddr 192.0.2.4 rport 61886
a=candidate:0 2 UDP 2122194687 192.0.2.4 61888 typ host
a=candidate:1 2 UDP 1685987071 203.0.113.141 62538 typ srflx raddr 192.0.2.4 rport 61888