Welcome to a new generation of residential management system, features multi-channel communication, video intercom, security protection and information releasing. Overcoming such bottlenecks in traditional intercom system as blocked communication, small capacity, complicated wiring, poor signals, simple functions and unsteady system, it introduces advanced multi-channel, audio & video transmission, fault-tolerant and AGC technologies. With the adoption of cat.5 cables, standard RJ45 ports and modulized design, our equipment identifies itself as a solution of low costs, flexible networking and simple installation.