[Freeswitch-users] T.38/fax problem

[Michael Collins]

Can you get a pcap of this and open in wireshark? I think it might give you
a bigger picture of what's happening.
-MC

On Wed, Oct 17, 2012 at 7:02 AM, Marcin Gozdalik <gozdal at gmail.com> 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
>
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-- 
Michael S Collins
Twitter: @mercutioviz
http://www.FreeSWITCH.org
http://www.ClueCon.com
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