Video door-phone (also known as
video door entry or
video intercom) is a stand-alone
intercom system used to manage calls made at the entrance to a building (
residential complex,
detached family home, workplace, etc.) with access controlled by
audiovisual communication between the inside and outside. The main feature of video door entry is that it enables the person indoors to identify the visitor and, if (and only if) they wish, engage in conversation and/or open the door to allow access to the person calling.
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