Base terminal including gooseneck microphone with cardioid polar pattern, active add-on loudspeaker, standard keypad and the possibility to connect up to four keypad modules EM 302EG. The mechanical screw and adhesive connection make these Intercom stations exceptionally robust.

The buttons can be assigned to various functions, including direct dialling with call indication, triggering of output functions such as switching lighting circuits or managing doors and indicating input messages, for example, the status of doors, gates and barriers.