| 摘要 |
A portable cellular phone terminal device having a communication function for communicating via a network through a use of portable cellular phone services provided by a portable cellular phone service provider and an accessory function in addition to the communication function, the portable cellular phone terminal device including: a restriction information storage section for storing the accessory function and presence/absence information concerning whether utilization of the accessory function by the device itself is restricted; a receiving section for receiving, via the network from an information transmitting center managed by the portable cellular phone service provider, restriction-lifting information for informing the device itself of a lifting of restrictions on utilizing the accessory function, based on results of the use of the portable cellular phone services; a control section for restricting utilization of the accessory function based on the presence/absence information read from the restriction information storage section, in a case that the communication function cannot be utilized; and a restriction information writing section for updating the presence/absence information stored in the restriction information storage section, when the receiving section has received the restriction-lifting information, or when the control section has restricted utilization of the accessory function.
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