/mcpError Message %UC_CTI-4-kCtiQbeMessageTooLong: %[CTIConnectionType=String][InstanceNumber=Long] [QBEMessageLength=Long][AppID=String][ClusterID=String][NodeID=String]: Incoming QBE message exceeds input buffer size. Explanation An incoming QBE message exceeds the input buffer size and then gets dropped. Recommended Action The size of the QBE packet could exceed the suggested size when the JTAPI/TSP version is not compatible with the version of CTIManager. Contact the application vendor and verify that the application is compatible with the version of Cisco Unified Communications Manager (Unified CM). If the application vendor requests you to, install the JTAPI or TSP plugin (Cisco Unified CM Administration > Application > Plugins) and restart the application. Error Message %UC_CTI-4-kCtiNullTcpHandle: %[PDU_Number=Long][AppID=String][ClusterID=String] [NodeID=String]: TranslateCtiQbeInputMessage: NULL TCP HANDLE!!! (QBE packet is dropped). Explanation A null TCP handle is preventing the QBE packets to be reported to applications. Recommended Action This problem typically happens due to a network connectivity failure. Check for and resolve any connectivity issues in your network. Error Message %UC_CTI-3-kCtiEnvProcDevListRegTimeout: %[AppID=String][ClusterID=String] [NodeID=String]: Directory change notification request time out.. Explanation CTIManager registration request to EnvProcDevList timed out; CTIManager will send another registration request. Recommended Action Check and resolve network connectivity problems between Cisco Unified Communications Manager nodes. Error Message %UC_CTI-3-kCtiMYTCPSendError: %[AppID=String][ClusterID=String][NodeID=String]: MYTCP_Send: send error.. Explanation TCP socket connection has been broken. Recommended Action This problem occurs when an application is abruptly shut down or has lost network connectivity to CTIManager. Review your application and network connectivity and resolve any issues. Error Message %UC_CTI-2-kCtiSdlErrorvException: %[AppID=String][ClusterID=String][NodeID=String]: Failed to create an internal process that is required to service CTI applications.. Explanation An unexpected internal SDL error caused a failure in creating CTIManager Service SDL Process. Recommended Action An internal CTIManager error has occurred. Try Restarting the CTIManager service to resolve this problem, if it does resolve the problem restart the Unified CM Server. 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 25/343