Hi guys! I've encountered a problem with refresher INVITE message. In short it breaks established call, causing media transport to close, but the session itself is OK. Here is an example: I've got an application calling into the conference server. This server accepts the call and establishes the connection. This client can hear the sound coming from server form about a minute, after that the sound suddenly breaks and neither he hear anything nor he can be heard by other participants of conference. Below is a short piece of sip trace: INVITE sip:1.conference.dw at xx.xxx.x.xx:5080;transport=TCP SIP/2.0 .. SIP/2.0 100 Trying .. SIP/2.0 407 Proxy Authentication Required .. ACK sip:1.conference.dw at xx.xxx.x.xx:5080;transport=TCP SIP/2.0 .. SIP/2.0 100 Trying .. SIP/2.0 183 Session Progress .. This is the answer from server with refresher lines in SDP SIP/2.0 200 OK .. *Session-Expires: 120;refresher=uas Min-SE: 120* .. ACK sip:1.conference.dw at xx.xxx.x.xx:5080;transport=tcp SIP/2.0 .. *Finally, the next INVITE message from server causes media stream to close* Processing incoming message: Request msg INVITE/cseq=121095711 (rdata07810910) RX 978 bytes Request msg INVITE/cseq=121095711 (rdata07810910) from tcp xx.xxx.x.x:5080: INVITE sip:1001 at 87.184.52.45:64935;transport=tcp SIP/2.0 ... Session-Expires: 120;refresher=uac Min-SE: 120 .. ... m=audio 27322 RTP/AVP 103 101 a=rtpmap:103 speex/16000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=silenceSupp:off - - - - a=ptime:20 dlg0783D1AC Received Request msg INVITE/cseq=121095711 (rdata07810910) tsx07845D7C Transaction created for Request msg INVITE/cseq=121095711 (rdata07810910) tsx07845D7C Incoming Request msg INVITE/cseq=121095711 (rdata07810910) in state Null tsx07845D7C State changed from Null to Trying, event=RX_MSG dlg0783D1AC Transaction tsx07845D7C state changed to Trying inv0783D1AC Got SDP offer in Request msg INVITE/cseq=121095711 (rdata07810910) Call 0: received updated media offer endpoint Response msg 200/INVITE/cseq=121095711 (tdta07846520) created inv0783D1AC SDP negotiation done, status=0 Call 0: remote NAT type is 0 (Unknown) strm0784C834 JB summary: size=2 prefetch=3 delay (min/max/avg/dev)=20/260/55/50 ms burst (min/max/avg/dev)=1/12/2/0 frames lost=35 discard=0 empty=852 Media session for call 0 is destroyed pjmedia_rtp_session_init: ses=0784D580, default_pt=103, ssrc=0xd291c26 pjmedia_rtp_session_init: ses=0784D9F4, default_pt=103, ssrc=0xd291c26 Stream strm0784C394 created Encoder stream started strm0784C394 Decoder stream started Media updates, stream #0: speex (sendrecv) inv0783D1AC Sending Response msg 200/INVITE/cseq=121095711 (tdta07846520) dlg0783D1AC Sending Response msg 200/INVITE/cseq=121095711 (tdta07846520) tsx07845D7C Sending Response msg 200/INVITE/cseq=121095711 (tdta07846520) in state Trying TX 801 bytes Response msg 200/INVITE/cseq=121095711 (tdta07846520) to tcp 74.208.167.44:5080: SIP/2.0 200 OK ... Any help regarding how to resolve this problem will be appretiated! Cheers, Robert. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20091002/bcb284d5/attachment.html>
