[cisco-voip] 2821 MGCP Faxing Problem

[JASON BURWELL]

I am using T.38 protocol. I have compared the mgcp configs and they are
identical. To enable T.38 faxing on this gateway I used the below
commands which I have always used on other gateways.

no mgcp fax t38 inhibit
mgcp package-capability fxr-package

Is there another command I am missing?

Thanks
Jason


-----Original Message-----
From: Ryan Ratliff [mailto:rratliff at cisco.com] 
Sent: Tuesday, July 14, 2009 1:21 PM
To: JASON BURWELL
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] 2821 MGCP Faxing Problem

What fax protocol are you trying to use?  Try comparing the MGCP
configuration of the problem router versus the ones that work.

-Ryan

On Jul 14, 2009, at 11:14 AM, JASON BURWELL wrote:

I am having problems receiving faxes in on a particular MGCP 2821
gateway. The only difference I notice on the q931 debug is on the other
gateways where faxing works, the Transfer capability changes to
"Transfer Capability=3.1khz audio" when a fax call comes in. On non- fax
calls, the Transfer capability is always "Transfer Capability=Speech".

On the problem gateway, ALL calls fax and otherwise have "Transfer
Capability=Speech"

Any ideas on how to turn on detection so the gateway will switch to
Transfer Capability=3.1khz audio when a fax is detected?

Thanks!
Jason

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