telephone switching network meaning in Chinese

电话交换网

Requirements for pabxs access to public telephone switching network
自动用户交换机进网要求
The test methods for the technical specifications of ringing and tone for automatic telephone switching network
电话自动交换网铃流和信号音技术指标测试方法
The test methods for the technical specifications of subscriber line signalling for automatic telephone switching network
电话自动交换网用户信号技术指标测试方法
The test methods for the technical specifications of inband pulsing single frequency line signalling system for automatic telephone switching network
电话自动交换网带内单频脉冲线路信号技术指标测试方法
Abstract : combining the tenth five _ year plan of tianjin telecommunication , the paper states some problems relating to the planning of the local telephone switching network in the new period , such as the situation that was faced for the telecommunication networks , the major questions that were needed to solve in planning , the problems of continued development in telephone services and the transit of n _ band network to b _ band network
文摘:结合天津电信“十五”规划的编制，阐述了在新时期本地电话交换网规划中所涉及的几个问题，如电信网面临的形势和规划中需要解决的重大课题、电话业务持续发展的问题及由窄带网向宽带网过渡的问题等等。