It's necessary to have a booking system, which comes out of the box.

Example:

Suppose we have 30 channel licenses and 4 rooms (1-3 with 10 channels and 4 with 30 channels). In this case, we need a system that blocks rooms 1-3 if a conference is planned in room 4. In other cases, the first caller at rooms 1, 2 or 3 will block the important large meeting at room 4.

Niels