/mcpSpecify Alternate Routing for Emergency Calling Perform the following steps to configure calling search space and destination number. These parameters are used to restrict the routing of any call made from a registered off-premises device where the user has not set a location. If you do not configure these parameters, the calls are routed normally. Procedure Step 1 From Cisco Unified CM Administration, choose System > Service Parameters. Step 2 From the Server drop-down list, choose a server. Step 3 From the Service drop-down list, choose Cisco CallManager. The Service Parameter Configuration window appeares. Step 4 In the Clusterwide Parameters (Emergency Calling for Required Off-premise Location) section, specify Alternate Destination for Emergency Call. Step 5 Specify Alternate Calling Search Space for Emergency Call. Step 6 Click Save. Configure the Application Server You must configure the application server to enable the E911 Proxy to communicate with the Cisco Emergency Responder. E911 proxy is used to direct the users to the application server where they enter the location of the device. Procedure Step 1 From Cisco Unified CM Administration, choose System > Application Server. Step 2 Click Add New. The Application Server window appears. Step 3 From the Application Server Type drop-down list, select CER Location Management. Step 4 Click Next. Step 5 In the Name field, specify a name to identify the application server that you are configuring. Step 6 In the IP address field, specify the IP address of the server that you are configuring. Step 7 From the list of Available Application Users, select the application user and click the Down arrow. Step 8 In the End User URL field, enter a URL for the end users that are associated with this application server. Step 9 Click Save. Configure E911 Messages Use the following procedure to select and edit E911 messages for off-premises devices. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 67 Remote Worker Features Specify Alternate Routing for Emergency Calling