Patent attributes
An apparatus includes a wireless transceiver, a card reader and a processor. The wireless transceiver may be configured to communicate wirelessly with an annunciator, a hall light box and a server computer. The card reader may be configured to read identification numbers from cards. The processor may be configured to initiate transmission of an alarm message to the annunciator, the hall light box and the server computer in response to an event, illuminate an alarm indicator in response to the event, receive an authorized identification number that cancels the event from the card reader, initiate transmission of a cancellation message with the authorized identification number to the annunciator, the hall light box and the server computer in response to cancellation of the event, and extinguish the alarm indicator in response to cancellation of the event. The alarm indicator may changes color over time until the event is canceled.
