The selling phone model is: AFT-BG-02, suitable for mining, pipe gallery, tunnels, highways, steel mills and other places, this phone waterproof grade of IP66, support RJ11/RJ45 Two kinds of wiring mode Evert Communications Technology Co., Ltd. is mainly committed to Metro, Highway tunnels, petrochemical, metallurgical nuclear power, Marine shipbuilding, bridge mines and other industries internal emergency special communication system Paga broadcast scheduling, scenic spots, airport visitor help management system, municipal sos,110,119 alarm system. Special industrial IP Telephone, SOS telephone, sip dispatching system R & amp; d Production and sales