Device Guides
How to
Merge identical contacts
If identical contacts appear in the address book, you can merge them so they will appear only once.
List view
Find "Contacts"
Tap Contacts.
Merge identical contacts
Tap the required contact.
Tap Edit.
Tap link contacts....
Tap the required contact.
Tap Link.
Return to the home screen
Tap the Home key to return to the home screen.