Control circuit for an electrical telephone accessory

Details Control circuit for an electrical telephone accessory Control circuit for an electrical telephone accessory

H - Electricity

04

M

H04M 1/00 (2006.01) H04M 1/82 (2006.01) H04M 19/04 (2006.01)

Patent

CA 2052854

ABSTRACT OF THE DISCLOSURE A control circuit for an electrical telephone accessory detects if the telephone receiver is on the cradle, the telephone ringer is actuated, or if the telephone receiver is lifted from the cradle. The control circuit connects the electrical telephone accessory to a power supply source when the telephone ringer is actuated or when the telephone receiver is lifted from the cradle.

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