[asterisk-users] DTMF not working on incoming calls

[Dovid Bender]

Have you done a wireshark capture and then seen if the DTMF is coming in
from your provider? What does the SDP show?



On Thu, Dec 5, 2019 at 12:17 AM Carlos Chavez <cursor at telecomab.mx> wrote:

>     What is  the best way to debug DTMF on a PJSIP trunk?  I have cycled
> through all available options ('rfc4733','inband','info','auto','auto_info')
> but my IVR does not recognize any options from the remote end.  I have also
> tried changing codecs from g729 to alaw or ulaw with the same result.
> Outgoing calls do not seem to have this problem, just incoming.  This is
> with Asterisk 13.29.2 but the problem started with 13.21 before I decided
> to upgrade to the latest 13.x version.  Any pointers?
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