Romm preperation is very important for both systems. The light is the major factor. Also different soundlevels are needed. You need about 300 – 400 lux in the view to the camera from 9 different areas in the room. The measurement is done in the direction to the camera not to the ceiling.
Also the silence in 6 areas of the room is measured, with AC turned on. And the reflection of noise. There are several tools for measuring this. Cisco is very picky on these values.
Pics:
Here the carton for the camara adjustments is just flipped around. On the picture it’s fixed in the wrong way.