/mcpProcedure Step 1 From Cisco Unified CM Administration, choose Call Routing > Class of Control > Calling Search Space. Step 2 Click Add New. Step 3 In the Name field, enter a name. Ensure that each calling search space name is unique to the system. The name can include up to 50 alphanumeric characters and can contain any combination of spaces, periods (.), hyphens (-), and underscore characters (_). Step 4 In the Description field, enter a description. The description can include up to 50 characters in any language, but it cannot include double-quotes ("), percentage sign (%), ampersand (&), back-slash (), or angle brackets (<>). Step 5 From the Available Partitions drop-down list, perform one of the following steps: • For a single partition, select that partition. • For multiple partitions, hold down the Control (CTRL) key, then select the appropriate partitions. Step 6 Select the down arrow between the boxes to move the partitions to the Selected Partitions field. Step 7 (Optional) Change the priority of selected partitions by using the arrow keys to the right of the Selected Partitions box. Step 8 Click Save. Configure a Route Pattern for Multilevel Precedence and Preemption Configure route patterns to route or block both internal and external calls. Procedure Step 1 From Cisco Unified CM Administration, choose Call Routing > Route/Hunt > Route Pattern. Step 2 Perform one of the following tasks: • To modify the settings for an existing route pattern, enter search criteria, click Find, and then choose an existing route pattern from the resulting list. • To add a new route pattern, click Add New. Step 3 Configure the fields on the Route Pattern Configuration window. See the Related Topics section for more information about the fields and their configuration options. Step 4 Click Save. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 833 QoS Management Configure a Route Pattern for Multilevel Precedence and Preemption