For AS systems (firmware >/= 9.2) as well as ES (from version 1.3) and HyperVoice systems. Movable and illuminated 4.3 inch color display, soft keys, slot for optional BT module 40, En module 42 and A module 42, integrated busy light, interface for corded or DHSG headsets, function key-related busy lamp field, suitable for ASIP protocol, Connection via LAN, optional STE operation/support possible. Display of door image and contact photo on ES (from version 1.7) and HyperVoice systems. Full CTI control via TAPI and AGFEO PC client. Suitable for PoE operation (Power over Ethernet) or separate power supply (6100826) required!