[Freeswitch-users] Inband DTMF Problem

[Anthony Minessale]

is the send dtmf inband as well?
did you try doing a pause after send dtmf to give it time to deliver it?
I still don't quite get what you are saying because i don't recognize the
functions in your example.

for good measure i added 2 new commands to FS

the flush_dtmf application you can execute before playing the file

and the uuid_flush_dtmf api command you can send to an arbitrary uuid
maybe try those


On Wed, Nov 5, 2008 at 9:59 AM, Klaus Teller <klaus.teller at gmx.net> wrote:

> HI,
>
> I'm attaching the console log and event-socket traffic. In the latter case,
> i gathered only the last few Digits (including the spurious one).
>
> I also have the wireshark trace that i can send you off the list if you
> wish.
>
> We ran the same IVR (VoiceXML App) with a platform that supports RFC2833 i
> didn't have this problem. With this platform we unfortunately don't have
> this feature available.
>
>
> Klaus.
>
> -------- Original-Nachricht --------
> > Datum: Wed, 5 Nov 2008 09:14:02 -0600
> > Von: "Anthony Minessale" <anthony.minessale at gmail.com>
> > An: freeswitch-users at lists.freeswitch.org
> > Betreff: Re: [Freeswitch-users] Inband DTMF Problem
>
> > gather a console log at debug level and a trace of the event_socket
> > traffic.
> >
> >
> > On Wed, Nov 5, 2008 at 9:08 AM, Klaus Teller <klaus.teller at gmx.net>
> wrote:
> >
> > > Hi Folks,
> > >
> > > It's me again with a DTMF issue. Here is what's going on. I have a
> > remote
> > > IVR and i'm writing some code to communicate with it, exercise it, and
> > test
> > > it. The remote IVR is playing DTMF as inband.
> > >
> > > Right now, Freeswitch can detect all DTMF digits from the IVR. The
> > > interaction between my code and the IVR is essentially  a combination
> of
> > >  playing files and sending and reading DTMFs.
> > >
> > > The issue: whenever my code plays a file or send a DTMF digit, the
> > > following attempt to read DTMF fails. By failing i mean that there will
> > be a
> > > spurious DTMF detected by Freeswitch that was not sent by the IVR.
> > >
> > > That is, if i have something like:
> > >
> > > sendDTMF("3"); getDigits("38373", "#");  // # is the termination
> > character
> > >
> > > After executing the sendDTMF, getDigits fails because it immediately
> > > detects a pound. Yet this pound is not sent by the IVR. I can check
> this
> > by
> > > having wireshark running both on the IVR's computer and on Freeswitch's
> > > computer.
> > >
> > > Any idea what may be causing this problem? Is there some sort of Echo
> > going
> > > on or something like that?
> > >
> > > Thanks,
> > > Klaus.
> > >
> > >
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> > Anthony Minessale II
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-- 
Anthony Minessale II

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