IP video door phone

IP video door phone is a new generation video intercom system, before IP video door phone launched, all video door phone is analog, the use 2 wire, 4 wire, 6 wire or 8 wire to connect. 

As to IP video door phone, it only use a network cable to connect, usually outdoor station and indoor monitor all have RJ45 interface, very easy to install. What's more, usually IP video door phone has PoE function (power over Ethernet), that makes it even more easier to install. Both data and power can be transmitted through a network cable, no need extra power adaptor. It is the simplest installation way.