Reverse 911 allows public safety officials to send a recorded message via telephone to thousand of homes in the event of an emergency or significant event. The system requires only one person and a matter of moments to launch the calls, which saves a significant amount of manpower and time. Alternatives would be individual house calls or individual phone calls, which would take a large amount of time and personnel.

Reverse 911 is a Microsoft Windows based program that uses computer-mapping technologies to pinpoint specific areas in a designated community. Cities and towns across the nation are implementing Reverse 911 in their communities to better prepare and protect residents.