/mcpProcedure Step 1 Required: Create an End User with the User ID same as the intended phone number. Step 2 Required: Configure the Digest Credentials field in the End User Configuration window for Third Party AS-SIP SIP endpoints. For more information on how to configure a new End User, see the “Provision End Users Manually” chapter in the System Configuration Guide for Cisco Unified Communications Manager Step 3 From Cisco Unified Communications Manager Administration, choose Device > Phone. Step 4 Perform either of the following steps: • To configure V.150 on an existing phone, click Find and select the phone. • To configure a new phone for V.150, click Add New. Step 5 From the Phone Type drop-down list, select one of the phone types that supports V.150, and click Next. Step 6 For third party SCCP endpoints registered as Cisco 7962, select SCCP from the Device Protocol drop-down list, and click Next. Step 7 From the Media Resource Group List drop-down menu, select V.150. Step 8 For third party AS-SIP SIP endpoints only, Configure the following fields: • From the Digest User drop-down select the end user for this phone. The end user will be used for digest authentication. • Leave the Media Termination Point Required check box unchecked. • Check the Early Offer support for voice and video calls check box. Step 9 Click Save. Step 10 Click Apply Config. Step 11 Click OK. Configure SIP Trunk Task Flow Use this procedure to configure SIP Trunk task flow. Procedure Purpose Command or Action Configure a SIP Profile with SIP Best Effort Early Offer support for the SIP trunk. Configure SIP Profile for V.150, on page 262 Step 1 Optional. Configure a clusterwide default setting for SIP V.150 SDP Offer Filtering. Set the Clusterwide V.150 Filter, on page 262 Step 2 Configure a V.150 Filter within a SIP Trunk Security Profile that you can assign to specific SIP trunks. Add V.150 Filter to SIP Trunk Security Profile, on page 263 Step 3 Security Guide for Cisco Unified Communications Manager, Release 15 and SUs 261 Advanced System Security Configure SIP Trunk Task Flow