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HPD History: Communications

Prior to the 1960's before the current radios and centralized dispatching operations, the HPD used a PBX system made up of call boxes in selected areas. When an officer was needed for a call, a light would go off on the box (the amount of times the light went off would determine which beat was called). The officer on that beat would open the box and answer a phone for the call for service. To this day the large key officers use to open traffic control boxes are referred to as a "Call Box" keys.

(Photos submitted by retired Assistant Chief Aveiro).