One Kind of PSTN Value-Added Service Research and Development QI Zhong1, ZhAO Jing-mei1, Wang Jing1 1(Computer Teaching & Research Room,Shijiazhuang University of Economics ,Shijiazhuang 050021,China) Abstract:In view of current market demand and future telecommunication network development tendency, Proposed a section intellectualized, the multi- services, face the future value-added service load bearing platform (PSTN secretary platform). This platform mainly faces the situation which some middle and small scale telecommunication value-added service applications and IP turns on, Through the system integration way to the operation business, SP or the group customer provides a performance outstanding solution. Key word:PSTN; Value-Added Services; Intellectualization; System Integration