/mcpError Message %UC_Proxy-3-CTIGWSystemError: %[CSTAError=String][InternalError=String][GeneralError=String] [AppID=String][ClusterID=String][NodeID=String]: Cisco CTI Gateway application system errors. Explanation Cisco CTI Gateway application system errors Recommended Action Use RTMT to check the Cisco SIP Proxy service trace log file for any detailed error messages Error Message %UC_Proxy-3-PWSSCBFindFailed: %[SCBFindFailure=String][AppID=String][ClusterID=String] [NodeID=String]: SCB find failure. Explanation A call to find_scb() returned NULL which indicates the SCB lookup failed Recommended Action Use RTMT to check the Cisco SIP Proxy service trace log file for any detailed error messages 5/24/26, 3:34 AM System Error Messages for Cisco Unified Communications Manager 15 - Cisco https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/err_msgs/15_x/ccmalarms15.html 144/343