[Asterisk-Users] asterisk acts as media gateway for existing pabx ?

[Jean-Christophe Heger]

Yes you can. I have done this for a while.

First of all, you need an ISDN card that supports the NT mode. HFC ones
work great with ZapHFC drivers (mode 0 = TE, mode 1 = NT).
The cable between both systems MUST have 2 100 Ohm resistances.
Depending on your PBX, you might need to power up the line or not (100V).

A full explenation is available here:
http://home.foni.net/~jolly1/download/PBX4Linux-2.5.html

Jean-Christophe

Jean-Louis curty a écrit :

>Hi, 
>
>I'd like to realize the following setup  traditional phones --> pbx
>(non ip )  --> asterisk --- ISDN network
>
>
>is it possible to set up an asterisk server in such way that it acts
>as gateway between a traditionnal pbx and an isdn network ( I'm in
>France ). this to let people continue with their existing pbx + phones
>and enjoy voip features ?
>
>outgoing calls:
>if yes,do I need isdn card dedicated to incoming calls from pbx to
>asterisk and dedicated card from pbx to outside
>
>and what about the setup for incoming calls... the call comes in
>asterisk server.. how to dispatch the call back to the pbx if it's an
>extension still connected to the pbx ?
>
>I hope it's clear enough ....
>
>thanks 
>jean-louis
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