Which issue would cause an MGCP gateway to fail to register with Cisco Unified Communications
Manager?

A.
missing the configuration command isdn bind-13 ccm-manager under the ISDN interface

B.
mismatched domain name on the MGCP gateway and Cisco Unified Communications Manager
gateway configuration

C.
misconfigured route group in Cisco Unified Communications Manager

D.
incorrect MGCP IP address specified in the gateway configuration in Cisco Unified
Communications Manager

Explanation:
This problem is a domain name issue. If a domain name is configured
on the MGCP gateway, the domain name for the gateway configuration on Cisco CallManager
must be the same.
Linkhttp://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a00805a316c.s
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