Small phone booths take the noise disturbance of phone calls away from the open-plan office, while also offering employees a place for private phone calls. The workstations located right next to the atrium are highly visible to anyone looking up from the atrium. The architects were therefore careful to select a desk that would look good from all sides, including from below. By Dutch standards, the office floors are unusually large. The enclosed spaces (meeting rooms, focus rooms) are positioned so as to break up the large floor plates into smaller areas. The stairs in the atrium were added to improve connections between the different floors.