/mcpTrunk Configuration Tasks Procedure Purpose Command or Action Configure SIP trunk security profiles with any security settings that you want to apply to your Configure SIP Trunk Security Profile, on page 789 Step 1 SIP trunks. For example, you can configure digest authentication, device security mode, and TLS encryption for SIP signaling. If you don't configure SIP trunk security profiles, by default, Cisco Unified Communications Manager applies a nonsecure sip trunk security profile. Set up a Common Device Configuration for the trunk. For dual-stack trunks, configure the IP addressing preference. Configure Common Device Configuration, on page 790 Step 2 Configure the SIP trunks in your network. In the Trunk Configuration window, configure Configure SIP Trunks, on page 791 Step 3 the SIP settings for your trunks. Assign a SIP profile, SIP trunk security profile, and a Common Device Configuration to your SIP trunk. In addition, assign any SIP normalization or transparency scripts that your trunk connection requires. For example, if your SIP trunk connects to a Cisco TelePresence VCS, you must assign the vcs-interop script to the SIP trunk. To configure the presentation name and number on SIP Trunk page. Configure Presentation Information on SIP Trunks, on page 792 Step 4 Configure SIP Trunk Security Profile Configure a SIP Trunk Security Profile with security settings such as digest authentication or TLS signaling encryption. When you assign the profile to a SIP trunk, the trunk takes on the settings of the security profile. If you don't assign a SIP trunk security profile to your SIP trunks, Cisco Unified Communications Manager assigns a nonsecure profile by default. Note Procedure Step 1 From Cisco Unified CM Administration, choose System > Security > SIP Trunk Security Profile. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 789 Advanced Call Processing Trunk Configuration Tasks