Yeah we use BlueJeans Room Solutions and its easy enough (As long as the screen is on and users click the link in their diary), just to clarify I would consider this an Internet Video Conference Solution where as "Professional" would be the older style solution using something like Cisco UC over a WAN to dedicated equipment. I suppose I really should call it Legacy.
I do wonder if the screens dotted around parliment would have groups of 9 users on seperate sessions. Suppose we will soon find out.