We have our own products proprietary intellectual property rights and the patent,and had been the unique professional telephone manufactuer Company with the IP67 waterproof standard,EN Railway 50121,CE,FCC certification in China . We had developed a good cooperation with some famous companies domestic and oversea,such as the Siemens ,FHF ,Alcate,Schlumberger ,TTIC,ZET,Huawei...... The market Stretchs across to USA,Canada,France,Russia,Italy,Norway,Switzerland,Finland, Denmark, Germany, Portugal, Holland, Britain, Brazil, Chile. Venezuela.Mexico Argentina.Malaysia.Inda.Vietnam.Thailand.Singapore.Pakistan.Nigeria. Shouth Africa. Egypt.Sudan.Tunis.Kenya.Tanzania.Morocco.etc.