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
--
www.vddi.co.za <http://www.vddi.co.za/>
I Coetzee
IT Tegnikus
Telefoon        :       012 664 2300
Selfoon         :       079 522 6519
Faks    :       012 644 2902
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Skype   :       vddb_igcoetzee

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