Emergency phone reliability
Alarm level explanation: The emergency phone has not been used or tested for 40 days. It would be a good idea to test the operation of the emergency phone on a monthly basis.
Warning level explanation: The emergency phone has not been used or tested for 40 days. It would be a good idea to test the operation of the emergency phone on a monthly basis.
Ok level explanation: The emergency phone has been used or tested in the last 40 days.