Intercom systems are installed in a variety of settings, ranging from individual homes to busy office buildings. Intercom systems help keep buildings secure by allowing visitors to be identified and monitored. They also allow people to communicate with each other when needed. When an intercom system is installed, it’s important to think about where it will be placed and how it will be used. In a home, for example, an intercom system may be placed in a hallway or entrance area. In an office building, intercoms are typically located near entrances and elevators to help visitors navigate the building.