Building on intercom system, combined with today's advanced computer technology, video technology, digital communications technology, IC card information and the latest developments in network technology and design. The system to manage the host at the core, in order to talk to the main residential building, through targeted to a different configuration features Talkback host and the extension, the realization of building intercom, call each other, and other remote-controlled lock function for the whole hostel House to achieve modernization, scientific management and security to provide a comprehensive and efficient services to foreign Hengtai new staff dormitory owners to provide a safe, convenient, reliable and home environment. Building on intercom system, combined    with today's advanced computer technology, video technology, digital communications technology, IC card information and the latest developments in network technology and design. The system to manage the host at the core, in order to talk to the main residential building, through targeted to a different configuration features Talkback host and the extension, the realization of building intercom, call each other, and other remote-controlled lock function for the whole hostel House to achieve modernization, scientific management and security to provide a comprehensive and efficient services to foreign Hengtai new staff dormitory owners to provide a safe, convenient, reliable and home environment.