McDewey

• Device profile and user information must be synced in all the clusters. • Configure Extension Mobility. • Configure Roaming access to your Extension Mobility users. System Requirements for Extension Mobility Roaming Across Clusters The following system requirements exist for Cisco Unified Communications Manager: • Cisco Unified Communications Manager, Release 12.0(1)SU1 or higher. • Cisco Extension Mobility service must be running. • Intercluster Lookup Service must be running. Extension Mobility Roaming Across Clusters Login Login Terminology The following figure depicts the home cluster versus a roaming cluster in Extension Mobility Roaming across Cluster. Figure 7: Home Cluster vs. Roaming Cluster Home Cluster Home cluster is a cluster, where the user configuration such as User Device profile, Dial Plans reside here. Roaming Cluster Roaming cluster is a cluster, where users can do the Extension Mobility login to any Extension Mobility capable phone just like in their home cluster. Superuser A superuser is a user, who is associated to the Standard EM Roaming Across Clusters Super Users access control group. This user has a privilege to do the Extension Mobility login from a roaming cluster and can make or receive calls. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 454 Receiving Calls System Requirements for Extension Mobility Roaming Across Clusters