Apple has been granted a patent for a sort of intelligent visual caller ID. Like usual, the patent application carries the mundane title of "Image selection for an incoming call".
In reality, the technique Apple proposes could alert you to the caller's identity and give you some contextual clues where they are calling from, even their time of day. We can already get an image of a caller, based on the incoming phone number.
But the patent could display an image based on additional filters. For instance, suppose you receive a mid-morning call on the West Coast from someone in Japan. The technology would determine the caller's location and timezone, and show a photo of the person in the middle of the night. Does this mean I can't call in sick when I'm actually at the beach?