US Patent 7333817 Data terminal having a telephone function

A CPU in a cellular phone counts the number of calling times in each area in which the cellular phone resides, and stores the number of calling times for each area. The telephone numbers stored in the telephone directory file are affixed by priority orders based on the number of calling times for the area to which the telephone codes of the telephone numbers correspond. When the user wishes to display the telephone numbers on the screen of a display unit, the CPU arranges the telephone numbers in the order of the priority orders on the screen.