Patent ID: 6625455
Filing Date: 2003-09-23
Classification: H04W

Abstract:
A portable telephone comprising:a portable telephone set having radio communication means; a public base station device connected by a network and wire; a position management server connected to said network; and a simple base station device having means for communicating with both of said portable telephone set and said public base station device, said simple base station device being installed in a boundary of a communication prohibited area, wherein said simple base station device includes means for transmitting a control signal for one control selected from power ON and power OFF for a radio section of said portable telephone set and means for receiving a message indicating one of communication suspension and communication suspension releasing from said portable telephone set and transmitting said message to said position management server via said public base station device, said portable telephone set includes means for transmitting, upon receiving said control signal, said message indicating one of communication suspension and communication suspension releasing to said simple base station device, said position management server including means for registering a relation between a content of said message and a telephone number of said portable telephone set, said network performs no incoming call processing for said public base station device where said portable telephone set has been position registered if a communication suspended condition of a portable telephone set is recognized by referring to said position management server, and said message indicating communication suspension transmitted from said portable telephone set includes an identifier for a telephone set that has made a call to said communication suspended portable telephone set, said identifier indicating a service content including message recording.