[Asterisk-Users] Asterisk <--> PABX

[Peter Svensson]

On Thu, 31 Mar 2005 rudolfl at optusnet.com.au wrote:

> Company has an established call center, but want to use Asterisk for long distance
> inter-office calls and they want to use existing phone system.
> At the moment all I know is that they have Siemens PBX system. They will give me
> more details soon.
> Since I never tried that before, I want to get some information before I even talk
> to them.
> Did anyone try to connect to an office PBX? What interfaces PBX typically expose?
> What to look out for? 

Use a digital link if at all possible. Isdn is the preferred signalling, 
but RBS can be used if it is available. Stay away from analogue links 
since they will introduce two additional hybrids (2- to 4-wire 
conversions) and the signalling is still not very precise.

We have hooked up our Panasonic to Asterisk with an E1 PRI.

Peter