| Along with the rapid development of communication technology, competitions in telecommunication industry become more and more intensive; corporation clients with strategic importance are the focus of competition. The current solutions are mainly using PABX to meet the speech demand of group clients, which have the defects of low service quality, imperfect billing system, high rate of equipment failure, low call handling capacity, and low through rate.This essay was brought out in this context. Through an in-depth analysis to the existing problems in current corporation client solutions, combining the present network structure of Beijing Unicom Company, the author gives a solution based on CENTREX technology. The CENTREX corporation client solution is based on the EWSD VNET servers, CENTREX technology provided by EWSD switches and the client terminals. This scheme can not only provide the clients with high quality, high stability telecom services, but also can satisfy the personalized needs of different customers, thus greatly improves the competitiveness of Beijing Network Unicom Company. |
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