A keyphone system is an essential communication solution that combines the functionality of a telephone with easy access to various building services, such as entry control and intercom features. Commonly used in residential complexes, office buildings, and gated communities, keyphones allow users to communicate with visitors at the entrance or interact with specific departments within a facility. With integrated features like call forwarding, remote unlocking, and multiple line support, keyphones offer both convenience and security, ensuring seamless communication between users and those at entry points. These systems enhance the user experience by providing efficient, instant communication and controlled access to buildings, making them a vital tool for modern properties.