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一、概述 进入九十年代我国的通讯事业以前所未有的规模和速度发展着,据邮电部公布的数字表明1994年全国局用交换机净增1894万门,全年新增电话用户首次突破1000万户。1995年计划新增局用交换机1400万门。按目前通讯发展趋势,1995年局用交换机可望增加2000万门左右,再加上全国1590万门的用户交换机,全国交换机总量可达8000万门左右,使我国公用电话网将大大改观。
I. Overview In the 1990s, China’s telecommunications industry developed at an unprecedented scale and speed. According to figures released by the Ministry of Posts and Telecommunications, a total of 18.94 million gateways were used for exchange by national offices in 1994, and the number of new telephone subscribers exceeded 10 million for the first time in the year . In 1995 plans to add 14 million switchboards. According to the current development trend of communications, in 1995 the bureau exchange is expected to increase by 20 million or so. Coupled with the 15.9 million national user exchanges, the total number of national exchanges may reach 80 million or so, which will greatly improve the public telephone network in our country.