/mcpExternal Call Control Prerequisites This feature requires the Cisco Unified Routing Rules XML Interface, which directs your system on how to handle calls. For more information, see the Cisco Unified Routing Rules Interface Developers Guide (CURRI documentation) at https://developer.cisco.com. External Call Control Configuration Task Flow Procedure Purpose Command or Action Configure a calling search space for your system to use when the route server sends a Configure a Calling Search Space for External Call Control, on page 729 Step 1 divert obligation. A calling search space comprises an ordered list of route partitions that you assign to devices. Calling search spaces determine the partitions that calling devices search when they attempt to complete a call. Configure an external call control profile to provide the URIs for the adjunct route server, Configure an External Call Control Profile, on page 730 Step 2 a calling search space that is used for diverting calls, a timer that indicates how long your system waits for a response from the adjunct route server, and so on. For the translated patterns that you want to use with external call control, assign an external Assign a Profile to a Translation Pattern, on page 730 Step 3 call control profile to the pattern. When a call occurs that matches the translation pattern, your system immediately sends a call routing query to an adjunct route server, and the adjunct route server directs your system on how to handle the call. If the route server uses HTTPS, import the certificate for the route server into the trusted (Optional) Import the Route Server Certificate into the Trusted Store, on page 731 Step 4 store on your system node. You must perform this task on each node in the cluster that can send routing queries to the route server. If you use HTTPS for the primary or secondary web service URIs in the external call control profile, your system uses certificates to mutually authenticate through a TLS connection to the configured adjunct route servers. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 728 Advanced Call Processing External Call Control Prerequisites