[Asterisk-Users] Debugging zaphfc + PBX integration

[Rob Scott]

If you your board into an ISDN wall socket and it works then you are
acting as a terminal so you are in terminal mode.

Now, how are you connecting to the PBX?
If you are connecting to an ISDN extension on the PBX, then still you
have to match the kind of connection, whether it is point-2-point or
point-2-multipoint.
Then it should work.

If you are connecting it to an external line on the PBX, then it will
have to be in station mode and also you have to work out p2p or p2mp and
also have an ISDN crossover cable (not an ethernet crossover cable).

So a lot for you to work out.

I have successfully got a zpahfc card working on an extension of our PBX
and also a PRI card working on an external PRI line of the PBX, so it
should work for you in the end.