What are the benefits of using device address book vs. SIM?
Your phone’s address book supports a richer set of fields, such as contact name, first name, last name, mobile phone, home phone, work phone, email address, home address, work address etc. The number and type of fields will depend upon the phone make and model. The SIM card only supports a few fields such as contact name and phone number. By backing up your phone’s address book more of your contact information will be saved. [Back to top] How do I restore my contacts? To restore your contact information, download AT&T Mobile Backup to your new handset by following the download instructions provided here. Launch AT&T Mobile Backup on your handset and run a backup from the main menu to add your saved contacts to your new handset.
