[asterisk-r2] Bad DTMF detection...

[Juan Carlos Huerta]

I had the same problem with Maxcom, basically poor signal quality in
the link in one of the carrier's repeaters. From my point of view it
is not an Asterisk/OpenR2 issue. After a lot of testing the carrier
recognized the problem and change the link to ISDN/PRI

Some tips I found:

Check that the rack where is grounded
Try to use the zaptel/dahdi tools to "listen" the tones and compare
the results with another working installation
Ask to your carrier for quality tests to the last cable you use before your card

Hope this helps

Regards

Juan Carlos
~ Lo que no te mata te fortalece ~



On Tue, Jan 6, 2009 at 11:41 AM, Carlos Chavez <cursor at telecomabmex.com> wrote:
>        I have a customer who has a lot of problems with DTMF.  When you dial
> to his office it is very easy to get the wrong extension.  Most of the
> time the DTMF digits double up.  This has been happening for a while
> with Unicall and now also with OpenR2.  What is the best way to debug
> DTMF on MFC/R2?
>
>        I just upgraded to Asterisk 1.4.22 (from SVN at libopenr2.org), Zaptel
> 1.4.12.1, Libpri 1.4.7, Openr2 1.0.0-rc2 on a CentOS 5.2 server using an
> OpenVox D110PG card.
>
> --
> Telecomunicaciones Abiertas de México S.A. de C.V.
> Carlos Chávez Prats
> Director de Tecnología
> +52-55-91169161 ext 2001
>
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