[asterisk-users] SDP a=ice-ufrag & a=ice-pwd UNSUPPORTED OR FAILED

[Jonas Kellens]

Hello list


when trying to set up webRTC communications with sipjs client package 
(tried 0.7.0, 0.10.0 and 0.19.0), I see in the asterisk debug log-file 
the following :


DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
c=IN IP4 99.88.77.66... OK.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=rtcp:9 IN IP4 0.0.0.0... UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=candidate:4275385644 1 udp 2122260223 192.168.0.18 57987 typ host 
generation 0 network-id 1... UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=candidate:3686672562 1 udp 2122194687 172.21.64.1 57988 typ host 
generation 0 network-id 2... UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=candidate:4292167434 1 udp 1686052607 99.88.77.66 57987 typ srflx 
raddr 192.168.0.18 rport 57987 generation 0 network-id 1... UNSUPPORTED 
OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=candidate:8380856 1 tcp 1518280447 192.168.0.18 9 typ host tcptype 
active generation 0 network-id 1... UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=candidate:622132262 1 tcp 1518214911 172.21.64.1 9 typ host tcptype 
active generation 0 network-id 2... UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=ice-ufrag:zBkv... UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=ice-pwd:8LVdZW/AEq7hp898bLtsI/5W... UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=ice-options:trickle... UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=fingerprint:sha-256 
92:6B:C7:79:41:B1:42:78:2B:3A:75:8B:0B:D0:C7:4C:7C:4E:4F:2D:03:A2:DA:D9:BB:CE:B2:39:5D:20:A0:EF... 
OK.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=setup:actpass... OK.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=mid:0... UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level... UNSUPPORTED OR 
FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time... 
UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=extmap:3 
http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01... 
UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=extmap:4 urn:ietf:params:rtp-hdrext:sdes:mid... UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=sendrecv... OK.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=msid:4f4db37d-65ff-4f57-8c1c-b404f976c3fb 
cc4a3d72-3e9d-4926-b57c-056b6e7a6d6c... UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=rtcp-mux... OK.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=rtpmap:111 opus/48000/2... OK.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=rtcp-fb:111 transport-cc... UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=fmtp:111 minptime=10;useinbandfec=1... OK.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=rtpmap:63 red/48000/2... UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=fmtp:63 111/111... UNSUPPORTED OR FAILED.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=rtpmap:9 G722/8000... OK.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=rtpmap:0 PCMU/8000... OK.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=rtpmap:8 PCMA/8000... OK.
DEBUG[30891][C-00000000] chan_sip.c: Processing media-level (audio) SDP 
a=rtpmap:13 CN/8000... OK


in sip.conf I have :

icesupport = yes


in rtp.conf I have :

icesupport=true

stunaddr=stun.ekiga.net


sip peer has everything set for webrtc :


   Realtime peer: Yes, cached
   Prim.Transp. : WS
   Allowed.Trsp : WSS
   Codecs       : (alaw|g729|gsm)
   Useragent    : SIP.js/0.10.0
   Reg. Contact : sip:u79mer6v at 1u7hp86jdg67.invalid;transport=ws
   RTP Engine   : asterisk
   Encryption   : Yes
   RTCP Mux     : Yes

avpf = yes

force_avp =yes

icesupport = yes

dtlsenable = yes

dtlsverify = fingerprint

dtlssetup = actpass

dtlsfingerprint = sha-256


Why is there "UNSUPPORTED OR FAILED" in the log when processing 
"a=ice-ufrag" and "ice-pwd" ?? Asterisk gives no "a=ice-ufrag" and 
"ice-pwd" in its "SIP/2.0 200 OK" response to the INVITE and thus sipjs 
aborts the SIP call with a 488-"Not Acceptable Here".


I read about libuuid-devel and uuid-devel are necessary, but I have 
these installed !


What am I missing here ?!




Kind regards.


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