ICE Gathering Fails

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Murugan Pandian

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Apr 26, 2022, 2:48:04 AM4/26/22

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ICE Gathering fail on chrome 100.0.4896.127 (MAc)

Issue: When we try to make calls we are getting an Incompatible SDP error

Platform: JsSIP 03.9, Chrome 100.0.4896,Mac 64bit

Desc: When we try to make calls on firefox, safari works fine, but when we try to make the call from chrome we face this issue, When we check SDP we find we never get the SRFLX address from the STUN server. We understand it from WebRTC stack, If we check WebRTC Trickle ICE still same issue

v=0
o=- 4961026931914371034 2 IN IP4 127.0.0.1
s=-
t=0 0
a=group:BUNDLE 0
a=extmap-allow-mixed
a=msid-semantic: WMS gamS6CIkLeIh7cPEyexDHyHNt65JLAZzw0dl
m=audio 9 UDP/TLS/RTP/SAVPF 111 63 103 104 9 0 8 106 105 13 110 112 113 126
c=IN IP4 0.0.0.0
a=rtcp:9 IN IP4 0.0.0.0
a=ice-ufrag:qcpZ
a=ice-pwd:fmzUtJGWKKhgKlTf3HrnocWu
a=ice-options:trickle
a=fingerprint:sha-256 75:8B:77:EA:B6:31:6C:00:82:C6:41:EF:2E:CD:0B:BA:40:AC:9D:E7:41:4D:D2:D7:7B:1D:A4:38:02:1F:E4:40
a=setup:actpass
a=mid:0
a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
a=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
a=extmap:3 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01
a=extmap:4 urn:ietf:params:rtp-hdrext:sdes:mid
a=sendrecv
a=msid:gamS6CIkLeIh7cPEyexDHyHNt65JLAZzw0dl b9457697-0952-487d-9631-2bcf1e55f750
a=rtcp-mux
a=rtpmap:111 opus/48000/2
a=rtcp-fb:111 transport-cc
a=fmtp:111 minptime=10;useinbandfec=1
a=rtpmap:63 red/48000/2
a=fmtp:63 111/111
a=rtpmap:103 ISAC/16000
a=rtpmap:104 ISAC/32000
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:106 CN/32000
a=rtpmap:105 CN/16000
a=rtpmap:13 CN/8000
a=rtpmap:110 telephone-event/48000
a=rtpmap:112 telephone-event/32000
a=rtpmap:113 telephone-event/16000
a=rtpmap:126 telephone-event/8000
a=ssrc:1251643391 cname:7oHFFDWIUoc6bW+R
a=ssrc:1251643391 msid:gamS6CIkLeIh7cPEyexDHyHNt65JLAZzw0dl b9457697-0952-487d-9631-2bcf1e55f750
a=ssrc:1251643391 mslabel:gamS6CIkLeIh7cPEyexDHyHNt65JLAZzw0dl
a=ssrc:1251643391 label:b9457697-0952-487d-9631-2bcf1e55f750

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