/mcpError Message %UC_IPVMS-4-kDeviceMgrOpenReceiveFailedOutOfStreams: %[TraceName=String][CID=ULong] [PID=ULong][AppID=String][ClusterID=String][NodeID=String]: Open receive failure.. Explanation The open receive channel failed. This may indicate a missmatch of media resources between Cisco Unified Call Manager and the Cisco IP Voice Media Streaming App service. Recommended Action Check the performance monitor counters for resource availability on CUCM and on Cisco IP Voice Media Streaming App. Also, you might run the Platform CLI command "Show Media Streams" to identify possible media connection resource leaks. Possibly reset the media device or restart Cisco IP Voice Media Streaming App or restart the CUCM server. Error Message %UC_IPVMS-4-kDeviceMgrRegisterKeepAliveResponseError: %[TraceName=String][AppID=String] [ClusterID=String][NodeID=String]: Cisco Unified Communications Manager not responding.. Explanation The specified Cisco Unified Communications Manager is not responding to the keepalive messages. The connection with CUCM is being terminated and the media device will reregister with another Cisco Unified Call Manager if a secondary is configured. Otherwise, the media device will be unavailable until the device is able to reregister with CUCM. Recommended Action Cisco Unified Communications Manager may have gone down or is unable to respond. Check status of CUCM. The media device should automatically reregister. Error Message %UC_IPVMS-6-kDeviceMgrRegisterWithCallManager: %[TraceName=String][AppID=String] [ClusterID=String][NodeID=String]: Registered with Cisco Unified Communications Manager.. Explanation The software media device registered with the specified Cisco Unified Communications Manager. Recommended Action No action is required. Error Message %UC_IPVMS-4-kDeviceMgrRegisterWithCallManagerError: %[TraceName=String][AppID=String] [ClusterID=String][NodeID=String]: Connection error with Cisco Unified Communications Manager.. Explanation The media device was registered with the specified Cisco Unified Communications Manager and received a socket error or disconnect. This may occur normally when Cisco Unified Communications Manager is stopped. Recommended Action No action is required. The media device will reregister. Error Message %UC_IPVMS-4-kDeviceMgrSocketDrvNotifyEvtCreateFailed: %[DeviceName=String] [TraceName=String][Error=ULong][ErrorText=String][AppID=String][ClusterID=String] [NodeID=String]: Create driver notification event failure.. Explanation An error was returned when creating a signaling event for communication with the media streaming kernel driver. This may be due to memory or system resource shortage. Recommended Action Restart the Cisco IP Voice Media Streaming App service or restart the CUCM 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 42/343