They must view a full 360 of your room including your door with functional lock. If there is a window, it cannot be behind or near your computer screen. I believe the curtains must be closed. You cannot have a TV in the room and they must also see some form of ID. Interview was lengthy with much more questions than I had anticipated. Interviewer was friendly and laid back, which made me more comfortable. That being said, they were not transparent whatsoever with the schedule available and so I had to decline when I ended up receiving an offer.