Portable telephone system and communication control method for portable telephone set in a restricted zone

DETAILED DESCRIPTION It is an object of the present invention to prevent calls from incoming to a portable telephone set located in an area where its use is prohibited and a base station from performing any useless incoming call control for the portable telephone set not placed in a call receivable state.
It is another object of the present invention to enable a holder to reduce power for his portable telephone set without much attention when moving to a place prohibiting its use.
According to the present invention, a portable telephone system achieves the above tasks by supplying a power OFF signal when a holder enters a building or the like where use of a portable telephone set is prohibited, also informing a position management service in a network of communication suspension of the portable telephone set and registering the communication suspension.
Specifically, according to the present invention, a simple base station device is installed in the vicinity of the building where the use of the portable telephone set is prohibited, and the power OFF signal is supplied from device to the portable telephone set of the holder.
Further, the simple base station device supplies and registers an ID number received from the portable telephone set in the position management server in the network through a base station device of the portable telephone set.