McDewey

Step 2 Click Add New. Step 3 To enable SIP signaling encryption with TLS, perform the following: a) From the Device Security Mode drop-down list, select Encrypted. b) From the Incoming Transport Type and Outgoing Transport Type drop-down lists, choose TLS. c) For device authentication, in the X.509 Subject Name field, enter the subject name of the X.509 certificate. d) In the Incoming Port field, enter the port on which you want to receive TLS requests. The default for TLS is 5061. Step 4 To enable digest authentication, do the following a) Check the Enable Digest Authentication check box b) Enter a Nonce Validity Timer value to indicate the number of seconds that must pass before the system generates a new nonce. The default is 600 (10 minutes). c) To enable digest authentication for applications, check the Enable Application Level Authorization check box. Step 5 Complete the additional fields in the SIP Trunk Security Profile Configuration window.For more information on the fields and their configuration options, see Online Help. Step 6 Click Save. Note You must assign the profile to a trunk in the Trunk Configuration window so that the trunk can uses the settings. Configure Common Device Configuration A common device configuration comprises a set of optional set of user-specific feature attributes. If you are deploying IPv6, you can use this configuration to assign IPv6 preferences for SIP trunks or SCCP phones. Procedure Step 1 From Cisco Unified CM Administration, choose Device > Device Settings > Common Device Configuration. Step 2 Click Add New. Step 3 For SIP trunks, SIP Phones or SCCP phones, choose a value for the IP Addressing Mode drop-down list: • IPv4 Only—The device uses only an IPv4 address for media and signaling. • IPv6 Only—The device uses only an IPv6 address for media and signaling. • IPv4 and IPv6 (Default)—The device is a dual-stack device and uses whichever IP address type is available. If both IP address types are configured on the device, for signaling the device uses the IP Addressing Mode Preference for Signaling setting and for media the device uses the IP Addressing Mode Preference for Media enterprise parameter setting. Step 4 If you configure IPv6 in your previous step, then configure an IP addressing preference for the IP Addressing Mode for Signaling drop-down list: • IPv4—The dual stack device prefers IPv4 address for signaling. • IPv6—The dual stack device prefers IPv6 address for signaling. • Use System Default—The device uses the setting for the IP Addressing Mode Preference for Signaling enterprise parameter. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 790 Advanced Call Processing Configure Common Device Configuration