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- PDN Public switched Data Network 公共交换数据网
- public switched data network 公用交换数据网
- public switched packet data network 公用交换分组数据网络
- A term applied to a data transmission carried on the public switched telephone network and initiated by dialing the telephone number of the receiving station. 应用于普通开关电话网数据传输上的术语，指拨通某接收站的电话号码就能访问该系统的性质和动作。
- Chinapac, china packet switch data network 公用数据分组交换网
- Facsimile Communication over Packet Switched Data Network 在分组交换数据网上开通传真通信的探讨
- The firewall sit between the power phone system internal network and the public data network. 防火墙位于强力电话系统内部网络与公共数据网络之间。
- In data communication, the connection through the public switched telephone network from a terminal to a service, network or computer. 数据通信中，通过公共电话交换网，实现一个终端和一个服务部门、网络或计算机的连接。
- China Packet Switching Data Network 中国分组交换数据网
- On Railway Packet Switching Data Network 建设中的铁路分组交换数据网
- A term applied to a data transmission carried on the public switched telephone network and initiated by dialing the telephone number of the receivingstation. 应用于普通开关电话网数据传输上的术语,指拨通某接收站的电话号码就能访问该系统的性质和动作。
- A licence that must be obtained by any organization seeking to link a private network to the British PSTN (Public Switched Telephone Network). 需要将私人网络接入英国PSTN（公共电话交换系统）的任何组织必须首先取得许可证。
- The theoretical limit for packet switched data is approx. 给被转变数据的小包的理论上的界限是大概。
- The number of lines and traffic of the Public Switched Telephone Network (PSTN) network have also been decreasing. 公共电话交换网(PSTN)的线路和流量也在减少。
- To be successful,Internet faxing must provide reliability and performance equal to or better than traditional public switched telephone network faxing. 为了获得成功，因特网传真必须提供与传统的公共交换电话网传真相同、甚至更好的可靠性和性能。
- An entrance to or exit for a data network. 一数据网络的入口或下一出口
- VPDN? Virtual Private Data Network? 虚拟私用数据网?
- In the public switched telephone network (PSTN) age, people only could use the SMS and dial a telephone to communication. 其不只因为有著较传统电话更低的成本，同时也由于其能整合众多的网路服务。
- switched data network 交换数据网络
- This Recommendation describes a high-speed terminal access to videotex services for use on the Public Switched Telephone Network (PSTN). 本建议描述用于公众电话交换网(PSTN)的可视图文业务的高速终端接入能力。
