/mcp12 Protocol used by the device is not supported 13 Device is restricted for control by any application 14 Unable to communicate with database to retrieve device information 15 Device is resetting 16 Unable to register the device as specified media type is not supported 17 Unsuppported device configuration 18 Device is being reset 19 IPAddress mode does not match what is configured in Unified CM Error Message %UC_CTI-4-CtiDeviceOpenFailure: %[CTIconnectionId=Long][DeviceName=String][Reason=Enum] [AppID=String][ClusterID=String][NodeID=String]: Device Open failed. Explanation Application is unable to open the device Recommended Action Check the reason code and take appropriate action to resolve the issue Reason Code - Enum Definitions Enum Definitions - Reason Value Definition 0x8CCC0013 (2362179603) Device is already opened by another application; identify the application that is controlling this device. You can determine this information from RTMT (CallManager->CTI Manager and CallManager->CTI Search) 0x8CCC00DA (2362179802) Unable to communicate with database; verify the CPU utilization is in the safe range for (this can be monitored 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 17/343