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自80年代以来,通过引进技术,引进设备及自行研制开发,目前我国程控交换机生产已达到相当规模,程控交换机年生产能力已突破1000万门,其中局用程控交换机与用户程控交换机之比为3∶2。截止1993年底,全国程控交换机总装机量已达到4059万门,电话普及率达到2.15％。预计到2000年我国电话交换机总容量达9600万门,若从现在起,每年生产供应交换机1000～1300万线,到2000年全国电话普及率也还只有5～7％。
Since the 1980s, through the introduction of technology, the introduction of equipment and its own research and development, China’s program-controlled switchboard production has reached a considerable scale, program-controlled switchboard annual production capacity has exceeded 10 million, of which the ratio of the program-controlled switchboard and the user program-controlled switchboard is 3 : 2. By the end of 1993, the total installed capacity of program-controlled switches nationwide had reached 40.59 million, and the telephone penetration rate reached 2.15%. It is estimated that by 2000, the total capacity of China’s telephone exchanges will reach 96 million. From now on, the annual production and supply of switches will be 1,000 to 13 million lines, and by 2000, the national telephone penetration rate will still be only 5 to 7%.