DIAL NUMBER RETRIEVAL METHOD

PROBLEM TO BE SOLVED: To reduce the time required to retrieve a desired dial number and to relieve the load of retrieval. SOLUTION: This retrieval method has a one-item scroll function that scrolls one by one dial, a memory item number detection function that detects a memory item number of dial numbers through long time depression of a scroll key, and a scroll item number revision function that revises a scroll item number conducted at once depending on the memory item number.