Tiger uses three different colors on the screen as well as for the LED-bars on the monitor.
Green light means that the room is now available.
Yellow. The rooms is about to get occupied (time limit can be set in the Admin application).
Red indicates that the meeting room is now busy and cannot be booked.
However – on each monitor/booking screen the user can find the list of other available rooms (if any) and in an easy way book a meeting remotelly.