How to configure sending DTMF codes for a long distance provider via ISDN?

Unanswered Question
Apr 17th, 2009


I've cisco 3825. I want to configure sending DTMF codes after call setup to long distance provider.

I solve this in fxo by dial-peer configuration:

dial-peer voice 107 pots

trunkgroup common

permission term

description From Common - test


destination-pattern 11005318751

prefix 11005318751,,,,,,,,,,42641980255

But this configuration doesn't work for isdn.

I think only tcl can solve my problem. I'm right?

I have this problem too.
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CHRIS CHARLEBOIS Fri, 04/17/2009 - 12:18

ISDN doesn't use DTMF for call setup which is why the configuration you have used for POTS doesn't work. The gateway collects all digits and send it out in a H.225 setup message, rather than playing it out over the voice channel.

As for how to do that... There maybe an option using a custom made TCL script/application, but it would definitely be a solution that was outside the box. I'm afraid I don't know TCL well enough be help you out there.


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