| 摘要 |
PROBLEM TO BE SOLVED: To provide a mobile phone that allows a possessor to predict the amount of use for a prescribed period. SOLUTION: The mobile phone comprises a control section 1, a wireless section 2, a transmission/reception section 3, a display section 4, a storage section 5, and a display operation section 6. The memories 1 to N and memories A to G of the storage section 5 store, in addition to data with respect to the telephone directory, the schedule of phone contacts through designation of names registered in a telephone directory or data and time, the number of calls of each telephone number registered in the schedule, the integrated charges of each telephone number, the number of scheduled calls of each telephone number, the scheduled integrated charge of each telephone number, the average call charge of a previous month, the integrated charge of this month, the accumulated value of the number of the scheduled calls, and the scheduled integrated charge of this month. After communication, the control section 1 calculates the scheduled integrated charge of this month on the basis of the average speech charge of the previous month and number of the scheduled speech times of this month and displays the result on the display section 4.
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