/mcpPurpose Command or Action Create a device profile to map settings onto a real device when a user logs in to Extension Mobility cross cluster. Configure a Device Profile for Extension Mobility Cross Cluster, on page 425 Step 3 Enable Extension Mobility Cross Cluster for a User, on page 431 Step 4 Enable Extension Mobility on devices and subscribe to the service if you have not set up an enterprise subscription for all devices. Subscribe Devices to Extension Mobility, on page 432 Step 5 Activate Services for Extension Mobility Cross Cluster Procedure Step 1 From Cisco Unified Serviceability, choose Tools > Service Activation. Step 2 From the Server drop-down list, choose the requried node. Step 3 Activate the following services: a) Cisco CallManager b) Cisco Tftp c) Cisco Extension Mobility d) ILS Service Note You must choose publisher node to activate the ILS services. Step 4 Click Save. Step 5 Click OK. Configure the Extension Mobility Phone Service Create the Extension Mobility phone service to which you can subscribe your users. Procedure Step 1 From Cisco Unified CM Administration, choose Device > Device Settings > Phone Services. Step 2 Click Add New. Step 3 In the Service Name field, enter a name for the service. For example, enter a name such as Extension Mobility or EM. For Java MIDlet services, the service name must exactly match the name that is defined in the Java Application Descriptor (JAD) file. Step 4 In the Service URL field, enter the service URL in the following format: Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 424 Receiving Calls Activate Services for Extension Mobility Cross Cluster