Particularly simple, versatile video intercom system, comprising a flush or surface mounted door entry panel. Genius Kit allows call repetition by means of special terminals and duplication of the door open push button even in the vicinity of the external unit. Standard configuration can be varied easily, by fitting additional monitors or phones, or a second external video door entry panel. Genius kit can also provide for additional cameras and locks. The basic kit can be expanded to include up to 2 or more external units and 3 monitors per unit.
