The Design And Implementation Of Yulin Telecom PSTN Intellectualization Transforation

With China's telecom industry has entered a competition stage, the fixed-line operators face increased challenges, China Telecom made from the "traditional network operators" to "integrated information service provider" in the strategic transformation task. Network transformation is the basis for the entire telecom business transformation and leading. At the same time, the core problem to consider for operators is how to earn money and to obtain economic benefits, and how to build networks and develop value-added business. Open business must be supported with network, so what kind of network is a serious problem.In this paper, It analysis the present status and problems of traditional exchanging network of Yulin Telecom detailed, and discusses the NGN technology overview and the associated key technologies, and points out the problems of fixed network, which provides a basis for the next step in the construction of new NGN network of Yulin Telecom to carry out network intelligent and lays foundation for the research and selection of intelligent reform of Yulin Telecom.First, the article describes the basic ideas of the PSTN and fixed network changed to intelligent network, and introduces the definition, background and development situation of NGN, and explains the NGN development of China's telecom industry is a next generation network with the core of soft switch.Second, the article describes the relevant technologies of fixed network changed to intelligent network and elements' profile, and concepts and key technology of NGN, including concepts of NGN's network architecture, network characteristics and development goals, and key technologies of soft-switching technology, media gateways and media gateway control protocol.Then, combining with the actual work, the fourth chapter analysis traditional exchanging network of Yulin Telecom and provide NGN's applications, also analysis the network of having been transform to NGN+SHLR. According to the advantage of SHLR accessing to NGN networks to achieve business, a program to achieve value-added services on the NGN network is designed, carrying out the diversification of NGN network of Yulin Telecom.Finally, It provide the prospects of next step development and evolution of Yulin Telecom.