A building or local fire alarm system provides audible and/or visible alarm signals as the result of the manual operation of a fire alarm pullstation, the automatic operation of a fire detector, such as a smoke or heat detector, or the automatic operation of protective equipment, such as a sprinkler system. Various factors such as local codes, building size, and occupancy class will affect the requirements for these systems. Some features typically found in these systems include but are not limited to voice evacuation, fire-fighter communication, and computer video graphic annunciation.