A video intercom lets you see and speak to a visitor before you open the door, and in newer systems to do it from your phone. It sits between a basic doorbell and a full access-control system. This guide explains the types, the difference between analog and IP systems, what features to look for and how an intercom fits with your locks and cameras. It is part of our smart home security guide . Analog or IP? Analog intercoms use dedicated wiring between the entry panel, the indoor monitor and the door release, according to ButterflyMX. IP intercoms work over a network, so the picture and audio travel as data. The maker 2N says IP video door entry is more flexible, and its comparison table shows IP video units usually allow remote answering by app and recording, while basic analog door buzzers do not show video at all. Both are vendors, so treat the claims as their perspective. Feature Analog video IP video Wiring Dedicated cable from door station to monitor Network cable, often PoE...
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