[cisco-voip] 2821 MGCP Faxing Problem

[Ryan Ratliff]

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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