| 摘要 |
Disclosed is a system for informing of an emergency state via a line telephone or a cellular phone at emergency situation. The system includes an on/off switch for maintaining the system in a standby state, a magnetic switch and an infrared sensor each connected in series to the on/off switch for detecting occurrence of an accident, a relay connected in series to the magnetic switch and infrared sensor and operated by the switch and infrared sensor, and a line telephone having a hook switch operated by the relay. The line telephone dials a telephone, of which a phone number is previously designated, by the hook switch.
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