[Freeswitch-users] Why I could not detect DTMF when using Originate command

Michael Collins msc at freeswitch.org
Wed May 30 21:15:22 MSD 2012


The originate creates one leg and connects it to another leg. In this
example:

{execute_on_answer=start_dtmf,ignore_early_media=true}sofia/gateway/trunk_1/0860216060
8888

Everything up to 8888 creates the A leg. The "8888" is the B leg.

-MC

On Wed, May 30, 2012 at 9:37 AM, Michael Lutz <mytemike72 at gmail.com> wrote:

> Hi Michael,
>
> Can you explain a bit more? If you would initiate an outbound call
> using an originate api call, there is only one leg? How would you
> specify to listen to the b-leg, other than this?
>
>
> It might explain some issues I have recognizing (valid) dtmf's...
>
> Regards,
> Mike.
>
>
> 2012/5/30 Michael Collins <msc at freeswitch.org>:
> > Make sure that the start_dtmf is on the correct leg. I suggested putting
> it
> > on the b leg, but this example sets it on the a leg. Try it either way to
> > make sure.
> > -MC
> >
> >
> > On Wed, May 30, 2012 at 5:08 AM, Michael Lutz <mytemike72 at gmail.com>
> wrote:
> >>
> >> If your outbound provider does not support RFC2833 (DTMF via SIP Info
> >> messages) you need to explicitly set the outbound leg to 'listen' for
> >> DTMF tones using the start_dtmf dialplan command.
> >> As you originate, there is no real dialplan, you can set it using the
> >> "execute_on_answer"in inside the originate command like:
> >>
> >> originate
> >>
> {execute_on_answer=start_dtmf,ignore_early_media=true}sofia/gateway/trunk_1/0860216060
> >> 8888
> >>
> >>
> >> Regards,
> >> Mike.
> >>
> >> 2012/5/29 Michael Collins <msc at freeswitch.org>:
> >> > You may need explicitly to listen for inband DTMFs.Try adding <action
> >> > application="start_dtmf"> to extension 8888 and retest.
> >> > -MC
> >> >
> >> >
> >> > On Thu, May 24, 2012 at 8:27 PM, Chaiyawut Sookplang
> >> > <chaiyawut.so at gmail.com> wrote:
> >> >>
> >> >> I want to make an automatic IVR call using originate command. I
> issued
> >> >> command
> >> >>
> >> >> "originate {ignore_early_media=true}sofia/gateway/trunk_1/0860216060
> >> >> 8888"
> >> >>
> >> >> and then I found that DTMF from the receiver side couldn't be
> >> >> detected. On the other hand, if I call to extension 8888, IVR and
> DTMF
> >> >> work fine.
> >> >
>
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