/mcpError Message %UC_IPVMS-4-kDeviceMgrSocketNotifyEventCreateFailed: %[DeviceName=String] [TraceName=String][Error=ULong][ErrorText=String][AppID=String][ClusterID=String] [NodeID=String]: Creation socket event failure.. Explanation An error was reported when creating a notification event for a socket interface. This may be due to a resource shortage. The media device will remain unavailable. Recommended Action Restart the Cisco IP Voice Media Streaming App service and monitor for reoccurance or restart the CUCM server. Error Message %UC_IPVMS-4-kDeviceMgrStartTransmissionOutOfStreams: %[TraceName=String][CID=ULong] [PID=ULong][AppID=String][ClusterID=String][NodeID=String]: Start transmission failure.. Explanation An error was encountered while starting an RTP transmission audio stream. This may indicate a missmatch of resources between Cisco Unified Communications Manager and Cisco IP Voice Media Streaming App service. Recommended Action Check the performance counters for the media resources on CUCM and Cisco IP Voice Media Streaming App to determine if there is a resource leak. You should also use the platform CLI command "Show Media Streams" to check for orphaned media RTP connections. Error Message %UC_IPVMS-6-kDeviceMgrThreadWaitFailed: %[TraceName=String][Error=Int][ErrorText=String] [AppID=String][ClusterID=String][NodeID=String]: Wait call failure in device manager thread.. Explanation An error was reported during a system request to wait on an event, the media device will be restarted. Recommended Action No action is required. Error Message %UC_IPVMS-4-kDeviceMgrThreadxFailed: %[DeviceName=String][TraceName=String][Error=Int] [ErrorText=String][AppID=String][ClusterID=String][NodeID=String]: Creation of thread failure.. Explanation An error was reported when starting a process for the specified media device. This may be due to a system resource shortage. Recommended Action Restart the Cisco IP Voice Media Streaming App service or restart the CUCM server to recover from this error. 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 43/343