FreeSWITCH is fairly old (2012-05-30), though I haven't seen many fax-related changes lately. I'd love to try git HEAD but it's fairly hard given tat new Debian packages complately change filesystem structure. The Cisco uses User-Agent Cisco-SIPGateway/IOS-12.x, no idea what model it is. Hope there is any way to debug this without upgrading to git HEAD. 2012/10/18 Brian West <brian@freeswitch.org>
You forgot some of the most critical parts of the info needed. Its a Cisco, but What model? What firmware? What rev of freeswitch?
On Oct 17, 2012, at 9:02 AM, Marcin Gozdalik wrote:
Hi
I'm trying to send a fax from FreeSWITCH using T.38 (via Cisco SIP gateway) to a remote fax. It fails with some cryptic messages:
2012-10-17 15:51:30.467990 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 T4A expired in phase T30_PHASE_D_RX, state 27. An HDLC frame lasted too long. 2012-10-17 15:51:30.467990 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Status changing to 'The HDLC carrier did not stop in a timely manne r' 2012-10-17 15:51:30.467990 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Disconnecting 2012-10-17 15:51:30.467990 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Changing from phase T30_PHASE_D_RX to T30_PHASE_E
I do have full SIP/RTP dump of such a call if it is of any interest. It seems to be a peculiar interoperability issue, as this setup is used as a email2fax/fax2email gateway and it works quite well.
Could anybody recommend any steps I could try to debug/fix the issue?
Best regards
-- Marcin Gozdalik
-- Brian West brian@freeswitch.org FreeSWITCH Solutions, LLC PO BOX PO BOX 2531 Brookfield, WI 53008-2531
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