[Asterisk-Dev] Asterisk behind Siemens PBX via BRI interface

[GIBERT Frédéric]

In fact, if you have 2 PBX, you can interconnect them using QSIG for
example.
In this case, you can dial a prefix to dial the other PBX.
For example, you have phone 101 on PBX1 and phone 101 on PBX2.
You need to dial 1101 to reach the 101 on PBX1 and dial 2101 to dial 101
on PBX2.


With a fritz card, it's not so easy. As you cannot use QSIG, you need to
use bus S0 on the PBX and T0 on Fritz card. It's like male - female!

The problem is that you can assign a prefix to a T0 interface, but not
to a S0 Bus.

So, take this example.


PBX had such S0 Bus MSN Number: 50, 51, 52, 53. All this MSN number are
attributed to 2 B Channels.

And asterisk, you have defined prefix 1 to reach the PBX.



 From asterisk, you will dial 1XXXX to reach XXXX on the PBX.
 From the PBX, you will dial 50 to reach XXX1 on asterisk, 51 to reach
XXX2, etc...
But you won't be able to dial 50XXXX in order to reach XXXX on asterisk.
A MSN number is a virtual number on the PBX to reach a specified number
on asterisk.

Is that more clear?


-----Message d'origine-----
De : asterisk-dev-admin at lists.digium.com
[mailto:asterisk-dev-admin at lists.digium.com] De la part de Alexander
Noack
Envoyé : jeudi 29 avril 2004 19:23
À : asterisk-dev at lists.digium.com
Objet : RE: [Asterisk-Dev] Asterisk behind Siemens PBX via BRI interface

I apologize for being ignorant ...
Trying to understand what you want to do with the prefix (and what
follows thereafter).

> The problem is when you would call from HiCom to Asterisk.
> You will dial one of the MSN number in order to reach a
> phone on the asterisk. But in this way, you cannot manage
> prefix.

Is it that you want to hand off calls starting with a prefix to aterisk?
The only way I came up with, is to assign an MSN for each action you
want to perform on the asterisk.
Another Chance might be to just use one MSN to reach the asterisk (using
that as a prefix) and then let asterisk handle the rest ... maybe the
Siemens PBX has a function of sending additional callinfo in some
callerID field ...

How would it work if you'd interconnect two PBX using a BRI?
(I always had to assign MSNs for each function to be addressed)

Alex

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