Kilchenmann wired, delivered and installed the 23 equipment cabinets. A total of 450 lines with 250 W amplifier power each were connected. As installation partner (ARGE), cablex AG installed the cables and loudspeakers. The system was then put into operation and thoroughly tested by Kilchenmann and Ateïs. An operating station is available in the monitoring centre for any interventions. This station with the customised touch panel interface allows both the manually spoken announcement and the triggering of stored texts.