/mcp[ClusterID=String][NodeID=String]: Unknown exception.. Explanation An unknown exception occurred while trying to read MTP configuration information. Recommended Action Device will not start; fix problem and restart service. Error Message %UC_IPVMS-4-kRequestedCFBStreamsFailed: %[Requested=ULong][Allocated=ULong] [AppID=String][ClusterID=String][NodeID=String]: CFB requested streams failure.. Explanation The resources for the number of requested full-duplex streams was not available. Recommended Action Verify the Cisco IP Voice Media Streaming App service parameter for number of CFB calls. Restart the server to reset the stream resources. Error Message %UC_IPVMS-4-kRequestedMOHStreamsFailed: %[Requested=ULong][Allocated=ULong] [AppID=String][ClusterID=String][NodeID=String]: MOH requested streams failure.. Explanation The resources for the number of requested streams was not available. Recommended Action Verify the number of calls configuration setting for Music-on-Hold device. Restart the server to reset the resources. Error Message %UC_IPVMS-4-kRequestedMTPStreamsFailed: %[Requested=ULong][Allocated=ULong] [AppID=String][ClusterID=String][NodeID=String]: MTP requested streams failure.. Explanation The resources for the number of requested full-duplex Media Termination Point streams was not available. Recommended Action Verify the Cisco IP Voice Media Streaming App service parameter setting for number of MTP calls is correct. Restart the server to reset the available resources. Error Message %UC_IPVMS-4-MOHDeviceRecoveryCreateFailed: %[Error=ULong][ErrorText=String][AppID=String] [ClusterID=String][NodeID=String]: MOH device recovery create failure.. Explanation An error was encountered restarting the Music-on-Hold device. This may be caused by a shortage of memory resources. Recommended Action Check the status of the Music-on-Hold device. If the MOH device is not registered and available, Restart the Cisco IP Voice Media Streaming App service or restart the 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 56/343