I am using MGCP gateway with the CUCM 7.0 with one PRI and four analog ports. analog ports are being used for backup purpose, which if PRI is down, analog line ONLY used for outbout call by IP phone. those analog lines have been shared with fax machine. I want for incoming call, all calls go the fax machine. if PRI is down, I need users only be able to make a call and still fax machines receive call. I used for method and none of was working. one is using calling search space in MGCP gateway and the other one is using reject translation profile in the gateway.
how can I accomplish this?