Hi Drew,
 
When you say that the problem goes away if you don't use start_dtmf, do you mean that you get one tone recognised per tone or none?  If the former, then you've got DTMF being signalled out of band as well; in that case, why do you need inband detection?
 
--Dave
----- Original Message -----
From: Drew Ozier
To: freeswitch-users@lists.freeswitch.org
Sent: Tuesday, May 26, 2009 9:36 PM
Subject: [Freeswitch-users] Double-dtmf detection in IVR when a call isrouted through FreeSWITCH

I've got a configuration where I receive inbound calls and dial out to a pre-determined 800-number based on the DNIS of the call. I set <action application="start_dtmf"/> and have everything set up so that DTMF only comes to me via inband. When I'm providing DTMF data to the IVR, it will recognize a single keypress as a double-tap. My FreeSWITCH logs only contain one DTMF entry, but when I listen to the receiving end of the call, I can hear a hiccup in the DTMF tone that is getting played. When I do not use 'start_dtmf', this problem goes away. I need inband DTMF detection, but I can't have it messing up the audio stream. Any thoughts?

-Drew Ozier

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