Nanjing Ringcom communication technology company is an enterprise which focuses on data-communications, fiber optic transmission systems and network access product development, production, sales and service of high-tech. The company has a number of senior technical and management staff who have long-term commitment to communications technology research, product development and marketing of in the optical transmission communication, data communication, network communication software, large scale integrated circuits and other field with a solid R & D capability. By continuous, a great deal of R & D investment, the company has acquired a lot of core communication technology and has successfully developed a series of PDH Multiplexer, PCM voice multiplexing series, EOS series, fiber modems, protocol converters, TDM over IP series fiber optic transceivers and other products. The company takes advantage of their own R & D and equipment of production, to provide users with high-quality products and perfect technical service. The company now has a long-term stable cooperation with some domestic and foreign suppliers of communications equipment. We adhere to the " firm, honest, persistent " business purposes, and create a better future with customers and partners.