A video intercom is a communication device that allows people to see and talk to each other from different locations, typically within a building or complex. It combines video and audio features, enabling users to visually identify visitors at their door before granting access. This enhances security and convenience in residential and commercial settings. Most video intercom systems consist of an outdoor camera unit and an indoor monitor. The outdoor unit captures video and audio of visitors, while the indoor monitor displays the video feed and allows for two-way communication. Some systems also include additional features like remote access and smartphone integration for added functionality.