McDewey

Figure 9: Call Flow When User Is in Roaming Cluster Let us assume Bob's home cluster is down and Bob is configured as superuser who can roam across the clusters. When Bob moves to Cluster 2 and does Extension Mobility Login, hosting phone gets re-registered with Bob's settings. Once the login is successful, all other clusters are updated with Bob's new location. Now when Kally dials Bob's DN 1000-01, Cluster 3 routes the call to Cluster 2 and Bob and Kally are connected. Similarly, Bob can call Kally by dialing DN 3000-001. • If a superuser did the Extension Mobility login to another cluster, user will automatically log out from the home cluster. If the cluster is down, it waits until the cluster is up to log out from the user's previous login. • Extension Mobility Roaming Across Clusters supports the multi login behavior. Hence, superuser can login from multiple devices within the same cluster but not across the clusters. Note Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 456 Receiving Calls Extension Mobility Roaming Across Clusters Login