[Freeswitch-users] T.38/fax problem

[Marcin Gozdalik]

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 at 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 at freeswitch.org
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-- 
Marcin Gozdalik
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