[asterisk-users] wrond DTMF detection on Zap channel

nik600 nik600 at gmail.com
Wed Oct 21 03:11:22 CDT 2009


After a lot of debugging i have reproduced the error and the behaviour
look me very strage:

i've tried to change dtmfthereresold, vpmdtmfsupport and other kernel
module settings without noting any significative change.

But what i've notice (recording all the IVR calls and then listening
the registration of the call) is that DTMF tones are not recognized by
the system when the DTMF tone is clearly listenable in the audio
recording!!

Riassuming:

good quality in voice and very low quality in  the audio DTMF
detected: the DTMF tone is recognized, is logged in che console (i've
enabled dtmf log in full and console) and correctly detected by the
AGI script

good quality in voice and good quality in the audio DTMF detected: the
DTMF tone is NOT recognized anything is logged in the console and the
AGI script goes in timeout

I've also upgraded asterisk to

asterisk-1.4.26.2
dahdi-linux-complete-2.2.0.2
libpri-1.4.10.1

Any idea?


On Tue, Oct 13, 2009 at 11:51 PM, nik600 <nik600 at gmail.com> wrote:
> for disabling the hardware DTMF you intend to recompile zaptel with
> vpmdtmfsupport=0?
>
> Thanks
>
> On Fri, Oct 9, 2009 at 6:54 PM, C F <shmaltz at gmail.com> wrote:
>> are you using chan_local?



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nik600
http://www.kumbe.it



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