Telephone, telephone directory data checking method, and telephone directory data checking program

摘要

A telephone directory data checking unit detects repeatedly registered telephone directory data by checking caller information about a received voice communication or transmitter information about received e-mail with all telephone directory data registered in the telephone directory, and stores information for identification of telephone directory data having the checking result which indicates correspondence in the repetition information storage unit every time when a checking result indicates correspondence. A display unit performs screen display for notifying that telephone directory data has been repeatedly registered according to the information stored in the repetition information storage unit when the repeatedly registered telephone directory data is detected.