To prevent continuation of a case where a calling state lasts and a line is continuously occupied when a normal ring-off operation is impossible due to the failure or accident, etc., of the terminal equipment of an emergency call system or the control part of an emergency call center, etc.

Terminal equipment 1 of an emergency call system includes an emergency call communication means 11 which performs a telephone call processing to an emergency call center, a control part 12 which controls the means 11, a main battery 5 and an auxiliary battery 19, a power control circuit 18, a switch 20 serving as a power cutoff means, a gyro-sensor 13 which detects and processes the position information, a GPS(Global Positioning System) receiver 16, a position information acquisition processing part 14, etc. In such a constitution, a user turns off the switch 20 to cut off the power supply and can forcibly perform a ring-off operation when the normal ring-off operation is impossible due to the failure, etc., of the device 1.