/mcpStep 6 Perform security-related configuration tasks on the gateway. For more information, see Media and Signaling Authentication and Encryption Feature for Cisco IOS MGCP Gateways. Set Up SIP Trunk Security Profile To add, update, or copy a SIP trunk security profile, perform the following procedure: Procedure Step 1 From Cisco Unified Communications Manager Administration, choose System > Security Profile > SIP Trunk Security Profile. Step 2 Perform one of the following tasks: a) To add a new profile, click Add New in the Find window. (You can also display a profile and then click Add New.) The configuration window displays the default settings for each field. b) To copy an existing security profile, locate the appropriate profile and click the Copy icon for that record in the Copy column. (You can also display a profile and then click Copy.) The configuration window displays the configured settings. c) To update an existing profile, locate and display the appropriate security profile as described in Find SIP Trunk Security Profile. The configuration window displays the current settings. Step 3 Enter the appropriate settings as described in SIP Trunk Security Profile Settings. Step 4 Click Save. After you create the security profile, apply it to the trunk. If you configured digest authentication for SIP trunks, you must configure the digest credentials in the SIP Realm window for the trunk and Application User window for applications that are connected through the SIP trunk, if you have not already done so. If you enabled application-level authorization for applications that are connected through the SIP trunk, you must configure the methods that are allowed for the application in the Application User window, if you have not already done so. SIP Trunk Security Profile Settings The following table describes the settings for the SIP Trunk Security Profile. Security Guide for Cisco Unified Communications Manager, Release 15 and SUs 186 Basic System Security Set Up SIP Trunk Security Profile