Cam 015 is a room with a phone like the other rooms a few chairs and a table, a radiator, a shelf, a trash can and a vent that Chester and CAT can crawl into. Also there is a door that can lead to somewhere and a radiator next to it.
All of the animatronics can appear here, just like on any of the other cameras. If the player lets the phone ring in this room, it will lure nearby animatronics to this location.
Cam 015, when it's empty
Candy in Cam 015
Chester trying to enter the vent in Cam 015 (animated)
Chester being scared away by a phone call in Cam 015
Cindy in Cam 015
Blank in Cam 015.
RAT in Cam 015
The Cat in Cam 015
Both RAT and The Cat being in Cam 015 together
The Cat trying to enter the vent in Cam 015 (animated)
The Cat being scared away by a phone call in Cam 015