Intercom systems provide a practical and secure solution for communication within buildings and between residents and visitors at the front door. They enable a quick and clear audio or video connection to control access to a building without having to open the door. Modern intercom systems often offer additional features such as video surveillance, integration with smart home systems and user-friendly interfaces. They are available in a variety of variants, including analog and digital models, with wired or wireless connections. Intercom systems are essential in residential buildings, office buildings, apartment buildings and public facilities to increase security and comfort.