Video door-phone

A video door entry panel may include push buttons to call the homes or offices and a camera to capture the street scene.

Installed indoors, the monitor consists of a screen showing the image of the person calling, a microphone and earpiece for conversation and a pushbutton to trigger the door lock release.

In addition to outdoor panels with one pushbutton per apartment, it is possible to find others with a numeric keypad: in this case, designed for large residential installations, the homes are identified by codes.

So, thinking of the visually impaired, the outdoor panel may include information in Braille alongside the pushbuttons, or a voice synthesiser can also be added which indicates when the door is opened.

For people with hearing impairment, the outdoor panel may include a screen with icons signalling the communication status: if the user is calling, if someone is speaking from indoors or opening the door.