Multi Door Video Door Phone

Multi-door video door phones are devices used for communication and security purposes at the entrance of a building with multiple doors. These devices usually consist of a central control unit or monitor and multiple outdoor camera units installed at different doors. The central control unit or monitor is typically placed inside the building, and it allows the residents or security personnel to view and communicate with visitors at any of the doors. When a visitor presses the call button on any of the outdoor camera units, their image appears on the monitor, and two-way audio communication is possible.