[Freeswitch-users] DTMF in SIP and pstn

Michael Jerris mike at jerris.com
Mon Nov 2 18:32:00 MSK 2015

you can, but why not just inject dtmf without the sound file?

On Monday, November 2, 2015, Vishal Sharma <vishal.sharma at knowlarity.com>

> Hi,
> In pstn when I play a sound file which contains dtmf digits, FS produce
> dtmf digits which can be detected on other end. I use sangoma card.
> but when I play same file, on sip. no dtmf is generated or detected on
> other end.
> it simply play a beep sound ...
> Can I play a sound file and generate DTMF digits on SIP.
> Regards,
> Vishal Sharma
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