| 摘要 |
A portable telephone has a positional information system unit employed to use a positional information system function for acquiring positional information, and a communication unit for transmitting/receiving the positional information to/from another terminal. The portable telephone has an address book function capable of registering telephone numbers into a storage unit by an input operation; and a control unit which operates in a manner that when a telephone communication is received, in the case that a telephone number is not notified from a telephone of a caller, or a telephone number notified from a telephone of a caller does not correspond to a telephone number registered in the storage unit, even if a signal for requesting the positional information from the telephone of the caller is received during the telephone communication, the control unit does not send the positional information.
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