[asterisk-users] DTMF Issues

[Guido Hecken]

Not shure if it helps here, but we had nearly the same dtmf problem in an
asterisk 1.4 install with SNOM 320/360 phones.
After hours of fiddling arround, we used relaxdtmf=yes in sip.conf and the
problem went away.
 
Guido
 


  _____  

Von: Ian [mailto:asterisk at iancoetzee.za.net] 
Gesendet: Mittwoch, 30. April 2008 11:34
An: Asterisk Users Mailing List - Non-Commercial Discussion
Betreff: [asterisk-users] DTMF Issues


Hi all

I am getting the feeling you are going to be hearing alot more from me in
the near future.

I have yet another issue here. This time its with DTMF (again).

Ok the setup is as follows:

We have a few Grandstream BT 200 phones and a few X-Lite phones. When
dialing out to, say a bank, with the Grandstream the bank complains that it
is unable to detect our DTMF tones. However when I do the same with the
X-Lite it detects it correctly.

Now I am in the process of implementing authentication into the system. This
on the other hand detects Grandstream DTMF but not X-Lite DTMF.

The Grandstream phones have been set up to send their DTMF via sip info (I
set it up that way in order to use the *2 transfer feature). I have tried
Zoiper and when I set it up to also send DTMF via sip info, the asterisk
detects the DTMF correctly.

Can anyone tell me what I can do to enable the DTMF to work?

Thanks in advance.

Ian

-- 

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