asterisk users - Dec 2004 - can a TDM400P FXS drop voltage on hangup?

I thought I had posted this, but I didn't see it in the archives, so I guess
I hadn't.

 

I've got FXS lines going to a legacy IVR.  When I Dial into one of these
lines and then hang up, FXS plays the Congestion tone until the IVR drops
voltage.   I would like the IVR to hang up sooner.  I could do this by
either making the IVR recognize the standard Congestion tone, or changing
the Congestion tone to be one that the IVR already recognizes (by the way, I
was surprised to find that Zap tones are compiled in, not in
indications.conf - any thought of changing this (with backward
compatability, of course)?  I might be able to do this myself).

 

But if I could get the FXS to drop voltage instead of play Congestion (or a
second of Congestion in case a person is listening, and then drop voltage)
that would be even simpler.  But can I make that happen, and how?

 

thanks

  

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>But if I could get the FXS to drop voltage instead of play Congestion (or a
second of Congestion in case a person is listening, and then drop voltage)
that >would be even simpler.  But can I make that happen, and how?

 

I have the same setup at one of my sites,  I tried to make the FXS drop
voltage on a hangup , but I couldn't make it happen, seems like the talk
voltage is always there on the fxs port.  I ended up finding a setting in
the legacy pbx in the CO line setup for the disconnect supervision and set
it for not received, this seemed to help a lot. 

 

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