Well every dtmf will have end rtp event with final duration and then tone will be played to endpoint, and in between you will receive more rtp event with increasing duration.

I'm not sure if you can ignore it of you negotiated rfc2833 type. Maybe there is some channel var that you can set on the fly

On Jul 7, 2017 18:23, "Mark Melling" <mark.melling@savageminds.com> wrote:

Hi,

If Freeswitch receives rfc2833 DTMFs, given that these DTMFs are out-of-band, does Freeswitch generate a tone to indicate to the user that a key has been pressed?

Assuming it does, is there a way to prevent the tone from being generated, i.e. so the user doesn't hear anything when a key is pressed?

Thanks

Mark

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