ＨＡＸ－１００交换机郊县计费功能的实现空军电讯工程学院魏伟，李晓明随着市话网的不断发展，一些大中城市建立了自己的本地网。市话用户给本市所辖郊县打电话同拨打市话一样方便，但收费比市话高，这给用户交换机计费带来不便，原因是程控用户交换机只对长途电话进行计... HAX-100 switch counties to achieve billing functions Air Force Institute of Telecommunications Wei Wei, Li Xiaoming With the continuous development of local telephone network, some large and medium-sized cities to establish their own local network. Local telephone users to the municipality under the jurisdiction of the suburbs of the same phone call with the local call as easy, but the charge is higher than the local telephone, which brings inconvenience to the user switch billing, because the program-controlled user exchange only long-distance ...