It has the function of intercom and point control, and can realize voice communication and point communication control with mobile phones through network cable and wireless base station connection. It can also be used by the general dispatching staff of land mobile communication control station to form a small communication network. It is mainly suitable for dangerous environments with explosive gases such as gas and coal dust in coal mines, and can realize voice communication and point communication control with handheld devices through network cable and wireless base station connection.