“八五”长途电话程控交换扩容工程开始“八五”期间，邮电部重大技术改造项目──全国长途电话程控交换扩容工程日前已全面铺开。该项工程将分两期进行。一期扩容的国内３０个省会以上城市（其中重庆市除外）的工程设计已基本完成，二期工程可行性研究正在抓紧进行。这一... During the “Eighth Five-Year Plan” period, the major technical transformation project of the Ministry of Post and Telecommunication, the program for program-controlled exchange and expansion of national long distance calls, has been fully launched. The project will be conducted in two phases. The engineering design of the first phase of expansion in 30 cities above the provincial capital level (except Chongqing Municipality) has basically been completed, and the feasibility study of the second phase of the project is under way. This one ...