/mcpUnified CM Administration so that the value can be validated against the accepted range of values for this field. Recommended Action Check the CMI service parameter Voice Mail DN to confirm that a valid directory number has been configured. Error Message %UC_CMI-4-ThreadKillingError: %[ErrorInfo=String][AppID=String][ClusterID=String] [NodeID=String]: An error occurred when CMI tried to stop the CMI service. Explanation As a normal part of the process of stopping the CMI service, open threads are closed (killed). This alarm indicates that a timeout occurred which means that the shutdown process is taking longer than expected, causing the operating system to return an error. Recommended Action Try restarting the CMI service. If the problem persists, collect the system/application event logs and the performance (perfmon) logs and report to Cisco Technical Assistance Center (TAC). Error Message %UC_CMI-4-MemAllocFailed: %[MemAllocFailure=String][AppID=String][ClusterID=String] [NodeID=String]: CMI tried to allocate memory and failed. Explanation Cisco Unified Communications Manager tried to read the Cisco Messaging Interface service parameters but not enough memory was allocated for the task and so the information could not be read. Recommended Action Use the Real-Time Monitoring Tool to check performance counters related to system memory to learn whether any memory leaks or spikes in CPU are occurring. Correct any anomalous memory issues you find. If you do not find any issues with memory, collect the system/application event logs and the performance (perfmon) logs and report this alarm to the Cisco Technical Assistance Center (TAC). 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 4/343