本地网中边界局的设置及其拨号选路方式分析邮电部电信传输研究所李少英我国公用电话网由长途网和本地网两大部分组成。本地电话网是以大、中、小城市或县城为中心，包含它们周围所属的县及郊区、农村地区在内组成的等位编号的电话网。这些本地网按地理位置分布，各个互相... The setting of the border office in the local area network and its dialing way analysis The telecommunications transmission research institute of the Ministry of Posts and Telecommunications Li Shaoying China’s public telephone network is composed of long distance network and local network two major parts. The local telephone network is centered around large, medium and small cities or counties and comprises an equal-numbered telephone network consisting of the counties and suburbs and rural areas surrounding them. These local networks are geographically distributed, each other ...