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。 In connection with the compilation of Tenth Five-Year Plan of Tianjin Telecom, this paper expounds several issues involved in the planning of local telephone switching network in the new era, such as the situation facing the telecommunications network and major issues to be solved in the planning, and the problem of the continuous development of the telephone service And the transition from narrowband networks to broadband networks and so on.