Hi, i just noticed the following. I have a SEMS running as a SBC with the following config settings:
## RTP relay # enable RTP relaying (bridging): enable_rtprelay=yes # force symmetric RTP (start with passive mode): rtprelay_force_symmetric_rtp=yes # use symmetric RTP indication from P-MsgFlags flag 2 #rtprelay_msgflags_symmetric_rtp=yes I use latest SEMS 1.5 from git, without any changes. It works fine until i do a Re-INVITE (e.g. for T.38). The outgoing Re-INVITE contains suddenly two c= lines?!? This looks like a bug to me. Kind regards, Carsten Incoming Re-INVITE for T.38: INVITE sip:84.252.101.20:5060 SIP/2.0 Max-Forwards: 28 Via: SIP/2.0/UDP 84.252.101.17;branch=z9hG4bKb4c1.a6add533.0 Via: SIP/2.0/UDP 84.252.101.12;branch=z9hG4bKb4c1.e8e4e867.0 Via: SIP/2.0/UDP 109.239.50.67:5061;rport=5061;branch=z9hG4bKb4c1.e8fa5fe6.0 Via: SIP/2.0/UDP 109.239.50.66:5080;branch=z9hG4bKF8glJakk;rport=5080 From: sip:[email protected] ;tag=3A06855E-50ACBBA8000F05B6-28C25700 To: "+4989200011252" <sip:[email protected] >;tag=46E2A8C2-50ACBBA8000ED1E9-737F7700 CSeq: 14 INVITE Call-ID: 1B02101F-50ACBBA8000ED1EC-737F7700 Contact: <sip:[email protected]:5080> Supported: timer Session-Expires: 120 Min-SE: 90 Content-Type: application/sdp Content-Length: 571 v=0 o=- 12682033 12682038 IN IP4 87.234.1.225 s=call c=IN IP4 87.234.1.225 t=0 0 m=image 23634 udptl t38 a=sendrecv a=T38FaxVersion:0 a=T38MaxBitRate:14400 a=T38FaxRateManagement:transferredTCF a=T38FaxUdpEC:t38UDPRedundancy a=direction:both m=audio 23636 RTP/AVP 8 102 0 127 101 a=rtpmap:8 PCMA/8000 a=rtpmap:102 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:127 PCMU/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendrecv a=gpmd:102 vbd=yes a=gpmd:127 vbd=yes a=ptime:20 a=silenceSupp:off - - - - a=ecan:fb on - a=X-fax a=direction:both Outgoing Re-INVITE: INVITE sip:[email protected]:61025 SIP/2.0 Via: SIP/2.0/UDP 84.252.101.20;branch=z9hG4bKfZo1oa8u;rport From: <sip:[email protected] >;tag=27B7E6A1-50ACBBA8000ECFED-783EE700 To: "+4989200011252" <sip:[email protected]>;tag=92b7a18884 CSeq: 10 INVITE Call-ID: 5119d5fe762347de Contact: <sip:[email protected]:5060> Route: <sip:84.252.101.17;lr=on;ftag=92b7a18884;did=b3f.e62da602;ngv=NWU2YnxpNDk8ZDVjMDMzPzRCAnssZnMweGovPz1kLXk5Z1s->, <sip:84.252.101.12;lr=on;nat=yes> Supported: timer Session-Expires: 120 Min-SE: 90 Content-Type: application/sdp Content-Length: 595 v=0 o=- 12682033 12682034 IN IP4 87.234.1.225 s=call c=IN IP4 84.252.101.20 t=0 0 m=image 23634 udptl t38 c=IN IP4 87.234.1.225 a=sendrecv a=T38FaxVersion:0 a=T38MaxBitRate:14400 a=T38FaxRateManagement:transferredTCF a=T38FaxUdpEC:t38UDPRedundancy a=direction:both m=audio 35006 RTP/AVP 8 103 0 127 101 a=rtpmap:8 PCMA/8000 a=rtpmap:103 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:127 PCMU/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendrecv a=gpmd:103 vbd=yes a=gpmd:127 vbd=yes a=ptime:20 a=silenceSupp:off - - - - a=ecan:fb on - a=X-fax a=direction:both -- Carsten Bock CEO (Geschäftsführer) ng-voice GmbH Schomburgstr. 80 D-22767 Hamburg / Germany http://www.ng-voice.com mailto:[email protected] Office +49 40 34927219 Fax +49 40 34927220 Sitz der Gesellschaft: Hamburg Registergericht: Amtsgericht Hamburg, HRB 120189 Geschäftsführer: Carsten Bock Ust-ID: DE279344284 Hier finden Sie unsere handelsrechtlichen Pflichtangaben: http://www.ng-voice.com/imprint/
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