It is important for anyone to make sure the safety of your digital information. One of important digital information that need backup is contact information in your iPhone including names and phone numbers. So when you lose or delete contact information you can restore it easily. You can backup all contacts on your iPhone manually by writing it on your book. You should also consider looking into iPhone Backup service that will help you backup and restore data easily. You can install IDrive Lite on your iPhone and start to backup all contacts that you have. You also can share contact information with your friends iPhone easily. Please visit iDrive.com and get IDrive Lite for your iPhone.