Rod Bacon wrote:
I am wanting to front-end a legacy PBX with an asterisk box. I have done plenty of asterisk work over the last 6 months to PRI circuits, but not with a PBX being involved.

I know I can use asterisk and digium cards in this manner, but do I need separate cards for the PRI -> Asterisk side to the Asterisk -> PBX side, or will a 4-port PRI card do the job? (I already have a spare one of these).


Short -- yes, can be done.

We just did one install with two incoming E1s connected to ports 1 and 2 on a Sangoma A104, and ports 3 and 4 were outgoing to an Avaya PABX.

In other words, can I use SPAN 1 as a timing source, then provide timing to the PBX connected to SPAN 2 of the same card?


That should do it. You'd just need to configure zaptel.conf properly. There's an example somewhere on the Wiki about integrating Asterisk with legacy systems.

Cheers,
Flynn

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