开县,是一个发展中的农业大县,(?)业作为通信基础设施建设,对繁济十分重要。1993年以来,开县的经济势头日益迅猛,电信建设开始起飞,高的立体通信网逐渐形成,投资环境日趋完发挥着“先行官”的作用。依靠科技进步进先进技术和设备,使电信业超前于县济的发展。电信业务量、业务收入的年分别保持在47.5％和36％。 为了提高整个电话网和技术层次县电信局以市内电话网的技术改造为突破推动全县通信网的技术进步。1994年1月成了市话5000门程控交换,1996年扩容门达到10000门,1997年增加8000门,交换总容量达到18000门。为适应移民 Kaixian County, is a developing agricultural county, (?) Industry as a communication infrastructure, is very important to the economy. Since 1993, Kaixian’s economic momentum has been growing rapidly, telecom construction began to take off, a high level of three-dimensional communication network was gradually formed, and the investment environment was playing an increasingly important role as a “pioneer”. Rely on scientific and technological progress into advanced technology and equipment, so that the telecommunications industry ahead of the county economy. Telecommunications business, business income year remained at 47.5% and 36%. In order to improve the entire telephone network and technology level County Bureau of Telecommunications to the technological transformation of the city telephone network as a breakthrough to promote the county’s communications network technology advances. In January 1994, it became the local program of 5000 program-controlled exchanges. In 1996, the capacity expansion door reached 10,000 and in 1997 an additional 8,000 were added. The total exchange capacity reached 18,000. To adapt to immigration