Hi! I am admin of a few FreePBX systems and I believe that I know this quite well.
Now our German branch wants me to install a system that replaces a multichannel ISDN system. They call it ISDN-Primär-Multiplex-Anschluss, it is a PRI / PMX with 30 B channels and one D channel each. (They have 2 of these, so 60 calls at the same time.)
They want to keep the existing connections to the telecom provider in place for now, so I need the proper hardware card.
Does anybody know how the extensions are best handled?
Their number is for example
10203-0 for the reception
10203-xxx for the extensions (can be called through from outside)
I would be happy for ANY kind of answer!