A collaboration engineer configures Global Dial Plan Replication for multiple Cisco UCM clusters. The local cluster acts as the hub cluster, and the remaining clusters act as spoke clusters. Which service must the engineer configure on the local cluster?
A. Location Conveyance on intercluster SIP trunks
B. Intercluster Lookup Service
C. Intra-Cluster Communication Signaling
D. Mobility Cross Cluster
It’s B.
Use global dial plan replication to create a global dial plan that spans across the Intercluster Lookup Service (ILS) network. When you enable Global Dial Plan Replication, you configure the dial plan component on one cluster, and ILS replicates that information throughout the ILS network.
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/11_0_1/sysConfig/CUCM_BK_C733E983_00_cucm-system-configuration-guide-1101/cucm_mp_c9dc8050_00_configure-global-dial-plan-replication.pdf