Fax T.38 reinvite drops most of the SDP
Hallo, we have the following fax scenario: Asterisk(SIP provider) => Freeswitch => Auerswald COMmander 6000R PBX IPS 10.10.10.10 => 20.20.20.20 => 30.30.30.30 Fax is initiated by Asterisk with PCMA codec Auerswald connects with PCMA and then does a T.38 reinvite In the T.38 reinvite Auserwald PBX sends a m=audio 0 RTP/AVP 19 m=image 49376 udptl t38. Freeswitch then finally drops most of the SDP and answers with m=image 0 udptl t38. m=image 0 udptl t38. and Auerwald PBX hangs up Anybody has an idea what is causing this? Why is Freeswitch not forwarding the complete SDP message. Maybe the "m=audio 0" is causing the problem? Dialplan is just sip_copy_multipart=false and bridge In internal and external profile <param name="t38-passthru" value="true"/> is set. Freeswitch log shows in between: 2014-02-10 13:23:10.869112 [INFO] sofia.c:5543 Activating T38 Passthru ========= Here are the SDPs================== SDP from Reinvite Auerswald to Freeswitch v=0. o=- 5045970593938686503 4940450077875186463 IN IP4 30.30.30.30. s=-. c=IN IP4 30.30.30.30. t=0 0. m=audio 0 RTP/AVP 19. m=image 49376 udptl t38. a=T38FaxVersion:0. a=T38MaxBitRate:14400. a=T38FaxUdpEC:t38UDPRedundancy. a=T38FaxUdpEC:t38UDPFEC. a=T38FaxRateManagement:transferredTCF. a=T38FaxMaxDatagram:512. a=T38FaxMaxBuffer:1472. SDP from Invite Freeswich to Asterisk: v=0. o=FreeSWITCH 1392015640 1392015642 IN IP4 20.20.20.20. s=FreeSWITCH. c=IN IP4 20.20.20.20. t=0 0. m=image 19342 udptl t38. a=T38FaxVersion:0. a=T38MaxBitRate:14400. a=T38FaxRateManagement:transferredTCF. a=T38FaxMaxBuffer:1472. a=T38FaxMaxDatagram:512. a=T38FaxUdpEC:t38UDPFEC. SDP from Ok from Asterisk to Freeswitch: v=0. o=root 1238355194 1238355195 IN IP4 10.10.10.10. s=Asterisk PBX 11.0.1. c=IN IP4 10.10.10.10. t=0 0. m=image 4609 udptl t38. a=T38FaxVersion:0. a=T38MaxBitRate:14400. a=T38FaxRateManagement:transferredTCF. a=T38FaxMaxDatagram:702. a=T38FaxUdpEC:t38UDPFEC. SDP from 200 OK from Freeswitch to Auerswald: v=0. o=FreeSWITCH 1392020936 1392020938 IN IP4 20.20.20.20. s=FreeSWITCH. c=IN IP4 20.20.20.20. t=0 0. m=image 0 udptl t38. m=image 0 udptl t38. Auerswald sends a BYE with Reason: SIP;cause=488;text="Not Acceptable Here". -- With kind regards Peter Steinbach Telefaks Services GmbH mailto:lists (att) telefaks.de Internet: www.telefaks.de
Full pcap, and logs, http://jira.freeswitch.org -- Brian West brian@freeswitch.org FreeSWITCH Solutions, LLC PO BOX 2531 Brookfield, WI 53008-2531 Twitter: @FreeSWITCH , @briankwest http://www.freeswitchbook.com http://www.freeswitchcookbook.com T: +1.918.420.9001 | F: +1.918.420.9002 | M: +1.918.424.WEST iNUM: +883 5100 1420 9001 ISN: 410*543 Skype:briankwest PGP Key: http://www.bkw.org/key.txt (AB93356707C76CED) On Feb 10, 2014, at 4:00 PM, Peter Steinbach <lists@telefaks.de> wrote:
Anybody has an idea what is causing this? Why is Freeswitch not forwarding the complete SDP message. Maybe the "m=audio 0" is causing the problem?
Hello Brian, Here is the Jira link: http://jira.freeswitch.org/browse/FS-6212 Best regards Peter On 02/11/14 14:48, Brian West wrote:
Full pcap, and logs, http://jira.freeswitch.org
-- Brian West brian@freeswitch.org FreeSWITCH Solutions, LLC PO BOX 2531 Brookfield, WI 53008-2531 Twitter: @FreeSWITCH , @briankwest http://www.freeswitchbook.com http://www.freeswitchcookbook.com
T: +1.918.420.9001 | F: +1.918.420.9002 | M: +1.918.424.WEST iNUM: +883 5100 1420 9001 ISN: 410*543 Skype:briankwest PGP Key: http://www.bkw.org/key.txt (AB93356707C76CED)
On Feb 10, 2014, at 4:00 PM, Peter Steinbach <lists@telefaks.de> wrote:
Anybody has an idea what is causing this? Why is Freeswitch not forwarding the complete SDP message. Maybe the "m=audio 0" is causing the problem?
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com
Official FreeSWITCH Sites http://www.freeswitch.org http://wiki.freeswitch.org http://www.cluecon.com
FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
-- With kind regards Peter Steinbach Telefaks Services GmbH mailto:lists (att) telefaks.de Internet: www.telefaks.de
Could you kindly attach a pcap to that also? -- Brian West brian@freeswitch.org FreeSWITCH Solutions, LLC PO BOX 2531 Brookfield, WI 53008-2531 Twitter: @FreeSWITCH , @briankwest http://www.freeswitchbook.com http://www.freeswitchcookbook.com T: +1.918.420.9001 | F: +1.918.420.9002 | M: +1.918.424.WEST iNUM: +883 5100 1420 9001 ISN: 410*543 Skype:briankwest PGP Key: http://www.bkw.org/key.txt (AB93356707C76CED) On Feb 11, 2014, at 9:43 AM, Peter Steinbach <lists@telefaks.de> wrote:
Hello Brian,
Here is the Jira link: http://jira.freeswitch.org/browse/FS-6212
Best regards Peter
Hello Brian, I had made that ngrep message, when we had that issue, so I attached it. For a pcap message I will have to involve a couple of people to gain access to the system again and retest that scenario. In addition, people are sometimes sensible to hand out unanonymized data to a publicly available server. Is there anything specific you would like to read in the pcap dump? Best regards Peter On 02/11/14 16:53, Brian West wrote:
Could you kindly attach a pcap to that also? -- Brian West brian@freeswitch.org FreeSWITCH Solutions, LLC PO BOX 2531 Brookfield, WI 53008-2531 Twitter: @FreeSWITCH , @briankwest http://www.freeswitchbook.com http://www.freeswitchcookbook.com
T: +1.918.420.9001 | F: +1.918.420.9002 | M: +1.918.424.WEST iNUM: +883 5100 1420 9001 ISN: 410*543 Skype:briankwest PGP Key: http://www.bkw.org/key.txt (AB93356707C76CED)
On Feb 11, 2014, at 9:43 AM, Peter Steinbach <lists@telefaks.de> wrote:
Hello Brian,
Here is the Jira link: http://jira.freeswitch.org/browse/FS-6212
Best regards Peter
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com
Official FreeSWITCH Sites http://www.freeswitch.org http://wiki.freeswitch.org http://www.cluecon.com
FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
-- With kind regards Peter Steinbach Telefaks Services GmbH mailto:lists (att) telefaks.de Internet: www.telefaks.de
I’ll review it again shortly and see. I might need a sofia loglevel all 9 in there too. But we’ll see. -- Brian West brian@freeswitch.org FreeSWITCH Solutions, LLC PO BOX 2531 Brookfield, WI 53008-2531 Twitter: @FreeSWITCH , @briankwest http://www.freeswitchbook.com http://www.freeswitchcookbook.com T: +1.918.420.9001 | F: +1.918.420.9002 | M: +1.918.424.WEST iNUM: +883 5100 1420 9001 ISN: 410*543 Skype:briankwest PGP Key: http://www.bkw.org/key.txt (AB93356707C76CED) On Feb 11, 2014, at 10:21 AM, Peter Steinbach <lists@telefaks.de> wrote:
Hello Brian,
I had made that ngrep message, when we had that issue, so I attached it. For a pcap message I will have to involve a couple of people to gain access to the system again and retest that scenario. In addition, people are sometimes sensible to hand out unanonymized data to a publicly available server. Is there anything specific you would like to read in the pcap dump?
Best regards Peter
On 02/11/14 16:53, Brian West wrote:
Could you kindly attach a pcap to that also? -- Brian West
brian@freeswitch.org
FreeSWITCH Solutions, LLC PO BOX 2531 Brookfield, WI 53008-2531 Twitter: @FreeSWITCH , @briankwest
http://www.freeswitchbook.com http://www.freeswitchcookbook.com
T: +1.918.420.9001 | F: +1.918.420.9002 | M: +1.918.424.WEST iNUM: +883 5100 1420 9001 ISN: 410*543 Skype:briankwest PGP Key: http://www.bkw.org/key.txt (AB93356707C76CED)
participants (2)
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Brian West
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Peter Steinbach