Telecommunication Real Time Billing & Voice Charging System

Based on the telecommunication real time billing and voice charging system, independently developed by the telecommunication company of Qujing municipality, Yunnan province, the article will justify its necessity and feasibility in the following. The system was put into use soon after being developed. While being updated and remolded, it was popularized to other local telephone network. And the article focus on raising its efficiency, guaranteeing its reliability, improving the sound quality and offering real time package preferences. Detailed subsystems are described and a plan for mutex exclusiveness , synchronically mutual of threads of its functioning modules is given. Technical plans are also provided.Since first put into use in 2000, the system has witnessed the rapid development of telecommunication and the improvement in its marketing strategies. After a series of updating and remolding, it has survived the highly competitive market. It meets the demands of the development of telecommunication, and by reducing the number of staff and raising efficiency it has brought huge direct benefits as well. Apart from meeting ordinary consumers' demands, it also gives a complete checklist of calls including local ones. People can now pay fees without going outdoors and know where exactly their money has gone, and thus their consuming concepts have changed quite a lot. Until now it has been popularized to other local area networks, with unpredictably huge social benefits to come.