NAO recognizing other NAO

[Urie D]

Has anyone experimented with this? I've used the robot for a couple years now so I'm familiar with them but I always was curious how to go about having one NAO recognize another.

Closest I've created to inter-robot interaction is making custom python boxes that act as sender and receiver so that a behavior can send its output to another NAO's IP where the receiver box will take it. Didn't finish the project though so I don't know how cool of a conversation that'd look like. 

I also tried registering the robots in the vision database but didn't know where to go from there.