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SIP/2.0 488 Invalid incoming Gateway SDP: Invalid media RRS feed

  • Question

  • Hi, I have a Sonus SBC SweLite and SfB Server 2015, which failing for calls coming from 4g VOLTE devices, however the invite is offering 0 and 8 in the invite but SfB isn't selecting this codec and providing a "SIP/2.0 488 Invalid incoming Gateway SDP: Invalid media" response. If 4g is disabled the call is correctly coded through. Below are the 2 invites being offered, I'm unsure why isn't selecting G.711 A law or U law as they are offered in both instances.

    Failed call invite options:

    v=0
    o=BroadWorks 835554296 1 IN IP4 X.X.X.X
    s=-
    c=IN IP4 X.X.X.X
    t=0 0
    a=media-release:hngl5rp9pujvivh05pvu6ibgr8bpv8a8756s748uuvmg
    X.X.X.X:59060 <==> <135>[2017-07-12 18:02:49,641] 2617 0034
    6g8c5ql0000070
    a=media-release-con-addr:d6v1k1hv6ivh1081o9j0
    m=audio 18676 RTP/AVP 116 107 9 118 96 111 110 8 0 18
    b=AS:128
    b=RS:612
    b=RR:1837
    a=rtpmap:116 AMR-WB/16000/1
    a=fmtp:116 mode-set=0,1,2; mode-change-capability=2; max-red=220
    a=rtpmap:107 AMR-WB/16000/1
    a=fmtp:107 octet-align=1; mode-set=0,1,2; mode-change-capability=2; max-red=220
    a=rtpmap:9 G722/8000
    a=rtpmap:118 AMR/8000/1
    a=fmtp:118 mode-set=7; mode-change-capability=2; max-red=220
    a=rtpmap:96 AMR/8000/1
    a=fmtp:96 octet-align=1; mode-set=7; mode-change-capability=2; max-red=220
    a=rtpmap:111 telephone-event/16000
    a=fmtp:111 0-15
    a=rtpmap:110 telephone-event/8000
    a=fmtp:110 0-15
    a=sendrecv
    a=ptime:20
    a=maxptime:40
    a=rtpmap:8 PCMA/8000
    a=rtpmap:0 PCMU/8000
    a=rtpmap:18 G729/8000
    a=rtpmap:18 G729/8000
    a=fmtp:18 annexb=no

    Accepted call Invite options:

    o=BroadWorks 835570239 1 IN IP4 X.X.X.X
    s=-
    c=IN IP4 X.X.X.X
    t=0 0
    a=sendrecv
    a=media-release:hngl5rp9pujvivh05pvu6ibgr8bpvo8
    X.X.X.X:59060 <==> <135>[2017-07-12 18:04:00,561] 5013 0006
    g756s748auvmg62o6u72662sr96v3hd1v2l1hkn2-6
    a=media-release-con-addr:d6v1k1hv6ivh1081o9j0
    m=audio 19304 RTP/AVP 8 0 18 96 97
    c=IN IP4 X.X.X.X
    b=RR:3000
    b=RS:1000
    a=rtpmap:8 PCMA/8000
    a=rtpmap:0 PCMU/8000
    a=rtpmap:18 G729/8000
    a=fmtp:18 annexb=no
    a=rtpmap:96 AMR/8000
    a=fmtp:96 mode-set=7;max-red=0
    a=rtpmap:97 telephone-event/8000
    a=fmtp:97 0-15
    a=maxptime:40

    Thoughts?

    Saturday, July 15, 2017 1:45 AM

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