We are using CCM 5.1 and 1 2821 H.323 voice gateway with 2 4FXO cards. There are 8 telephone lines on those fxo cards. We want to seperate fxo ports for the calling number. I mean 16XX extensions will use voice port 1 2 3 4, and 17XX will use 5 6 7 8 for outgoing calls.
We cannot use MGCP cause cannot monitor caller id with mgcp gateway. Does anyone know how to do this? Any parameter or way of restrictions for calling number on router?