[Freeswitch-users] Fax Issues with Cisco SPA112 and T.38

Brian Foster bdfoster at endigotech.com
Thu May 10 22:03:06 MSD 2012

1. Debug tells all. We need the siptrace as well.

2. VPS's are usually bad at sending/receiving faxes even if the media is
just being routed through it.

3. You could also look at session timers. Are other calls working?

The only real way to know is if we have number 1 in our possession,
otherwise we just start guessing.


On Thu, May 10, 2012 at 1:30 PM, Chris Ferreira <chris at gonumina.com> wrote:

> Hello All,
> I have a FreeSWITCH install running on CentOS 5.6 on a Linode VPS. I am
> trying to get my SPA112 (Version 1.1 Firmware) to send faxes (and
> eventually receive) successfully. I have the ATA registered as an extension
> and it's primary outgoing route is through Flowroute. I have T.38 enabled
> on the ATA and I have diabled ECM on the analog fax machine. All of the
> CDR's in Flowroute show that the test faxes are all ending their calls at
> 39 seconds.
> I can post screen shots of the ATA config or provide any other config info.
> Is there something I am missing, or should this setup work?
> I have poked around for a while for info, but unlike the PAP2T there is
> little info on these SPA112's. This is my first post asking for help as I
> usually try to resolve things on my own. But for this, I will defer
> to everyone's experience.
> Thanks,
> -Chris
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Brian D. Foster
Endigo Computer LLC
Email: bdfoster at endigotech.com
Phone: 317-800-7876
Indianapolis, Indiana, USA

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