“九五”期间我国通信业进入了大发展时期,电话的发展取得了很大成绩。全国城乡电话交换机总容量达到了1.3亿门,数字程控化比重为99.7%,全国的电话用户达到了1亿户,普及率为10%。随着通信网规模,容量的迅速扩大,作为公用电信网的电话来电显示业 During the “95” period, China’s telecommunications industry entered a period of great development. The development of the telephone has made great achievements. The total capacity of telephone exchanges in urban and rural areas in the country reached 130 million, with the proportion of digital programming controlled at 99.7%. The number of telephone subscribers in the country reached 100 million with a penetration rate of 10%. With the scale of communications networks, the rapid expansion of capacity, as the public telecommunications network telephone caller ID