| 摘要 |
A telephone directory data memory device includes: a communication line connecting element for coupling with a cell phone having a telephone directory data; a memory for storing the telephone directory data; a controller for controlling a memory status of the telephone directory data in the memory; and a telephone number obtaining element for obtaining a new telephone number of a new cell phone. The memory stores a correspondence relationship between the ,telephone number and the telephone directory data. The controller controls the memory to maintain the correspondence relationship when a first predetermined condition is met in a case where the telephone directory data is stored in the memory. The first predetermined condition is met when a first operation input element receives a first operation of the user.
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