You can assign a photo to a contact. When that person calls, iPhone displays the photo.
Choose Camera from the Home screen and take someone’s picture. Or choose any photo already on iPhone and tap
.
Tap “Assign to Contact” and choose a contact.
Position and size the photo until it looks the way you want.
Drag the photo to pan, and pinch to zoom in or out.
Tap Set Photo.
You can also assign a photo to a contact in Contacts by tapping Edit and then tapping the picture icon.