To enable a health profession to recognize calling as long as possible when power supply to a nurse call system is stopped due to a power failure.

A nurse call system includes a standby power source 30 for supplying power to a nurse call slave unit 1 and a corridor lamp 10 only for a fixed period when power fails, and also the nurse call slave unit 1 and the corridor lamp 10 are provided with standby reporting parts 5 and 14 for performing reporting by voice only when the power is supplied by the standby power source 30. Thus, when the power fails, the power is supplied by the standby power source 30 only to the nurse call slave unit 1 and the corridor lamp 10, and compared to the case of supplying the power by the standby power source 30 to the entire nurse call system, calling can be recognized by a health profession over a long period of time. Also, when the power fails, since the possibility of performing a round inside a hospital by the health profession is high, when reporting by voice is performed by a slave unit standby reporting part 5 and a corridor lamp standby reporting part 14, the health profession can recognize the calling.