/mcpoccurs again, manually reset the device. If this alarm continues to occur after the manual reset, there may be an internal firmware error. Collect existing SDI and SDL traces and contact the Cisco Technical Assistance Center (TAC). 26 InvalidCapabilities - (SCCP only) Unified CM detected an error in the updated media capabilities reported in one of the StationUpdateCapabilities messages sent by the device. The device will automatically attempt to register again. If this alarm occurs again, manually reset the device. If this alarm continues to occur after the manual reset, there may be a protocol error. Collect existing SDI and SDL traces and contact the Cisco Technical Assistance Center (TAC). 28 FallbackInitiated - The device has initiated a fallback and will automatically re-register to a higher-priority Unified CM. No action is necessary. 29 DeviceSwitch - A second instance of an endpoint with the same device name has registered and assumed control. No action is necessary. 30 DeviceWipe - An administrator has reset this device to factory settings. All configuration and data on the device will be erased. This device may remain unregistered until reconfigured. 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 215/343