I have a similar problem. In debug mode I see that the Cisco decodes the DTMFs but does not send them to the PSTN.
 
The only way I managed to make it working is setting the DTMF mode to be INFO on Freeswitch. This is problematic when you have both phones and the gateway on the same profile, and the phones use RFC-2833. The solution is to have a separate profile for the gateway.
 
                      Regards, __Yehavi:

2010/2/16 Tihomir Culjaga <tculjaga@gmail.com>
what DTMF method are you using ?

InBand as pure voice or by rfc2833?


if it is as pure voice than you will need this "<action application="start_dtmf" />" in FS dialplan receiving the call.

If you are using 2833, than you should check your FS config for DTMF method.

T.



On Thu, Feb 11, 2010 at 10:12 PM, maxim.tsvetov <maxim.tsvetov@gmail.com> wrote:

I already added "dtmf-relay rtp-nte" and this doesn't work.

Also I don't have "dtmf-interworking rtp-nte" command in Cisco.
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