[Asterisk-Users] DTMF Not working for only one number

[Alan Ferrency]

Do you mean, only one originating caller has problems with DTMF, but
other callers do not?

What kind of phone/service are they calling from?

We have had problems specifically with Skype/Skypeout customers not
working correctly with DTMF. I have heard of others who have problems
with certain cell phones calling their Asterisk box, and failing to do
DTMF correctly.

Alan Ferrency
pair Networks, Inc.
alan at pair.com


On Thu, 13 Apr 2006, Aaron Daniel wrote:

> Anyone have any ideas why DTMF would not work on only one number?  Looking
> through the logs, anytime a button is pressed, this is what shows up:
>
> 2006-04-13 11:39:18 DEBUG[22441] chan_zap.c: Exception on 9, channel 1
> 2006-04-13 11:39:18 DEBUG[22441] chan_zap.c: Got event Dial Complete(9) on
> channel 1 (index 0)
> 2006-04-13 11:39:18 DEBUG[22441] chan_zap.c: Echo cancellation already on
>
> We don't have any problems with any other numbers, and the DTMF works on
> phones that are on our meridian system (which we currently pass through)
> so I know it's somewhere in our T1 lines or gateway... don't really know
> where to go from there.  I did turn vpmdtmfsupport off and that didn't
> help at all.
>
> --
> Aaron Daniel
> Computer Systems Technician
> Sam Houston State University
> amdtech at shsu.edu
> (936) 294-4198
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