Hands-Free Device for Mobile-Phone Handset and Phone Book Registration Method

摘要

A hands-free device for a mobile-phone handset includes: a read unit that detects connection of a mobile-phone handset and reads identifying information of the mobile-phone handset connected; a phone book creation unit that creates a phone book for each piece of the identifying information; and a change unit that changes the identifying information assigned to the phone book to identifying information of another mobile-phone handset.