Hi Sean,

We have a few hundred of these and haven't discovered any issues with DTMF using:

<Mark_All_AVT_Packets>No</Mark_All_AVT_Packets>

<DTMF_Playback_Level>-16</DTMF_Playback_Level>
<DTMF_Playback_Length>.1</DTMF_Playback_Length>
<Inband_DTMF_Boost>12dB</Inband_DTMF_Boost>

Hopefully this helps.

BR,

Spencer

In you provisioning

On Apr 22, 2013, at 1:21 PM, Spencer Thomason wrote:

I had a similar issue with the Ciscos.  I just a warning.  Its fixed on master.

See http://jira.freeswitch.org/browse/FS-4923

On Apr 22, 2013, at 1:10 PM, Sean Devoy wrote:

HI,

I submitted a jira because people get yelled at for not sending a jira on ERRORs.

 

However, I really think this might be a Cisco SPA504G setup issue.

 

I get “[Err] switch_rtp.c:389 Failed DTMF payload check” when I dial OUT and hit an IVR where I have to enter DTMF numbers.  My latest was entering CC number,  the response I got was “You entered 4”, the first of 16 digits I typed!

 

Cisco has some parameters for DTMF and my are set thusly:

DTMF Playback Level: 0

DTMF Playback Length: .1 and

Inband DTMF Boost: 6dB.

 

Could those values be incorrect or hindering the process?

 

Thanks,

Sean

 

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