Is it possible to connect a cisco 801 router to a PBX? Can we use the ISDN interface of the PBX ? Is there a special configuration for the BRI or Dialer of the router?
I don't see any reason why it should not be connected to the PBX ISDN interface. Nothing special would be required, except the usual things like Switchtype, S/T or U interface matching and SPIDs if any to be checked out and configured accordingly.
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