Which prerequisite must be met before applying the gateway commands to enable MGCP?

An engineer must configure an MGCP gateway and register it to Cisco Unified Communications Manager.

Which prerequisite must be met before applying the gateway commands to enable MGCP?
A . The MGCP gateway and the Cisco Unified CM must be able to communicate over 2427,2428, and 2727.
B . The MGCP gateway must have voice service VoIP configured.
C . Cisco Unified CM and the MGCP gateway must utilize the SIP OPTIONS ping feature to monitor status.
D . The MGCP gateway and the Cisco Unified CM must be able to communicate over ports 5060 and 5061.

View Answer

Answer: A