/mcpTable 18: Recording Media Source Selection Selected Media Source Gateway in call path? Media Type Preferred Media Source Gateway Yes Unsecure (RTP) Gateway Phone No Phone Yes Secure (sRTP) Phone No Phone Yes Unsecure (RTP) Phone Phone No Phone Yes Secure (sRTP) Phone No Alternate Recording Media Source if the First Choice is Unavailable If the recording media source that Unified Communications Manager selects is unavailable, Unified Communications Manager attempts to use an alternate source. The following table shows the logic Unified Communications Manager uses to select an alternate source for recording media. Table 19: Alternate Recording Media Source if First Choice is Unavailable Phone Preferred Gateway Preferred Selected Media Source Phone First gateway in call path First attempt First gateway in call path Last gateway in call path Second attempt Last gateway in call path Phone Third attempt Recording Prerequisites • Cisco Unified IP Phone support—To view a list of the Cisco Unified IP Phone that support recording, log in to Cisco Unified Reporting and run the Unified CM Phone Feature List report, selecting Record as the feature. For a detailed procedure, see Generate a Phone Feature List, on page 5. • Gateway support—For details on which gateways support recording, see https://developer.cisco.com/ web/sip/wiki/-/wiki/Main/Unified+CM+Recording+Gateway+Requirements. • If you are configuring multiple-stream recording, deploy and configure a CUBE Media Proxy. For details, see the section CUBE Media Proxy in the Cisco Unified Border Element Configuration Guide. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 132 Monitoring and Recording Recording Prerequisites