TCL Script Call Setup

Unanswered Question
Mar 29th, 2010
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I have to find out further information about call setup and control when using a tcl script to play customized ring backs.

When I use a tcl script (application - service) on a voice gateway, and I call the getway, at which time is the script active and

takes control in the ISDN q931 / H323 stack ?

1) at the Q931 Call Alerting ?

2) or after creating a logical h.245 channel ? because the audio have to be streamed to the caller ?

Can I debug this ? How can I see when the script / audio for ringback goes active ?

thx a lot



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paolo bevilacqua Tue, 03/30/2010 - 10:36
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TCL/IVR developement and debugging is not easy.

However, you can use "debug voice application script".


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