| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication terminal device capable of greatly simplifying the estimation of a caller, and also reducing the number of times of registering caller ID into an address book. SOLUTION: The communication terminal device comprises: a memory 3 for storing address book information wherein the personal number and the name of a calling party or a called party are registered beforehand; a display unit 4 for displaying the information stored in the memory 3; and a control unit 7 which makes the memory 3 store information about registered numbers of the calling/called parties in the address book information as unregistered person information, and which makes the display unit 4 display the unregistered person information when there is generated a call from/to the unregistered person number. COPYRIGHT: (C)2008,JPO&INPIT
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