Does Cisco Unified Communications Manager support Calling Line Identification (CLID) with an analog port and an MGCP Gateway?
A. Cisco Unified Communications Manager 7.0 does not support CLID with an analog port and MGCP Gateway. You must use either an H323 or a SIP gateway. However, this is supported in Cisco Unified Communications Manager 8.0(1) and later. Refer to Cisco Unified Communications Manager Administration-Caller ID Support on MGCP FXO Gateways for more information.