[Asterisk-Users] x100p disconnect on "D" tone

[Henry Devito]

The zaptel driver has the 'D' Tone defined in the 'tones.h' file   I am 
trying to figure out what I can do with asterisk so it will recognize that 
and do a HangUp.
----- Original Message ----- 
From: Brian Leyton
To: 'asterisk-users at lists.digium.com'
Sent: Thursday, April 07, 2005 5:04 PM
Subject: [Asterisk-Users] x100p disconnect on "D" tone


I've seen this or similar questions in the archives, but haven't seen a 
solution yet.

I'm trying to use an FXO card to connect to a PBX (Toshiba DK-424). 
Currently I'm testing with an x100p, but eventually I'll be using TDM400s 
with FXO & FXS modules.  The Asterisk box is not detecting disconnect from 
the Toshiba, which is not surprising, since the Toshiba is not capable of 
providing disconnect supervision.  What the Toshiba can do, is provide an 
"A" tone upon connection, and a "D" tone upon disconnect.

I need to find a way for Asterisk to detect the DTMF "D" tone, and use that 
to determine that the PBX has disconnected.

Is there any way to do this?  Will this require modifying code, or is there 
some way to tell the Zaptel driver to look for the "D" tone?

Brian Leyton
IT Manager
Commercial Petroleum Equipment




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