Video door-phone

A video door-phone, also known as a video door entry or video intercom, is a phone with a monitor displaying visitors at the entrance to a building. It is typically a stand-alone intercom system used for calls made at the entrance to aresidential complex, detached family home, or workplace, with access controlled by audiovisual communication between the inside and outside. Video door entry enables the person indoors to view and talk with the visitor, and open the door remotely.

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