I'm not entirely sure how but the wife has an S3 also and when she paired the phone she got pics attached to incoming and outgoing calls and texts. Mine doesn't work, but I don't have any pics attached to my phonebook.
13 Blue Flame F150 FX4 402A on 20's loaded
13 Frosted Glass Escape Ti 401A loaded
13 Performance Blue SE 201A
14 Dark Side Fusion SE 200A
L-CCC #18/HOIA #37