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 a residential complex, detached family home, or workplace, with access controlled by audiovisual communication between the inside and outside.
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 a residential complex, detached family home, or workplace, with access controlled by audiovisual communication between the inside and outside.
Source: Wikipedia "Video door-phone" · CC BY-SA 4.0
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