The configuration of the Gira door communication system can be carried out via GPA prior to installation, thereby shortening the time needed for configuration. The DCS data interface is used for connection of the analogue 2-wire bus to IP. Additionally, the configuration data of existing systems can be read out. The system can even be combined with other product groups, e.g. door communication with logic module Gira L1 or Gira X1. Central control via IP enables individual home stations to be muted. And the occupancy simulation feature enables lights to be switched on in the house, for example, if the doorbell rings when you are not at home. This simulates movement in the house.