It has a color screen freehand enabling you to visualize and communicate with your visitor, thanks to a push rod of lighting. It is provided with a push-button to order the opening of the main entrance, with a witness indicating the cut of the ringing and with a catch of communication. The menu of the interior station enables you to regulate volume, the image, the choice of the melody. The video stations interior are intercommuniquants, which makes it possible to provide the function of audio door phone if you have several stations