/mcpTo add additional search criteria, click +. When you add criteria, the system searches for a record that matches all criteria that you specify. To remove criteria, click – to remove the last added criterion or click Clear Filter to remove all added search criteria. Step 3 Click Find. All matching records display. You can change the number of items that display on each page by choosing a different value from the Rows per Page drop-down list. Step 4 From the list of records that display, click the link for the record that you want to view. Note To reverse the sort order, click the up or down arrow, if available, in the list header. The window displays the record that you choose. SIP Trunk Security Profile Interactions and Restrictions The following table contains feature interactions and restrictions for SIP Trunk Security Profiles. Table 27: SIP Trunk Security Profile Interactions and Restrictions Interactions and Restrictions Feature You cannot deploy a secure SIP trunk while running with a 90-day evaluation period. To deploy a secure SIP trunk, your system must have registered to a Smart Software Manager account with the Allow export-controlled functionality product registration token selected. 90-day Evaluation License Digest Authentication for SIP Phones Overview Digest authentication allows Unified Communications Manager to challenge request messages for phones that are running SIP. This includes all request messages with the exception of keepalives. Unified Communications Manager authenticates through digest credentials the end user, as configured in the End User Configuration window, to validate the credentials that the phone offers. If the phone supports Extension Mobility, Unified Communications Manager uses the digest credentials for the Extension Mobility end user, as configured in the End User Configuration window, when the Extension Mobility user logs in. Digest Authentication for SIP Phones Prerequisite If you enable digest authentication for a device, the device requires a unique digest user ID and password to register. You must configure SIP digest credentials in the Unified Communications Manager database for a phone user or an application user. Make sure that you do the following: Security Guide for Cisco Unified Communications Manager, Release 15 and SUs 153 Basic System Security SIP Trunk Security Profile Interactions and Restrictions