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- switched telephone exchange 电话交换局
- 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。
- An operator at a telephone exchange. 电话局的接线员
- Our nervous system can be likened to a telephone exchange. 我们的神经系统好比一部电话交换机。
- Invention of 1,000 line switch with disc bank having ten concentric rows of line contacts. Not used commercially. Formation of Strowger Automatic Telephone Exchange. 发明1,000寻线机，其排线架拥有10排线路连接。但是并没有投入商业使用。史端乔式自动电话交换机形成。
- An operator wearing earphone was sitting in the telephone exchange. 戴耳机的接线员正坐在总机室里。
- The nervous system can be likened to a telephone exchange. 神经系统好比一部电话交换机。
- 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。
- Public facsimile transmission service between subscribers terminals on the switched telephone network. 在电话交换网络上用户终端间的公用传真传输业务。
- The new switchboard shares much of the workload of the telephone exchange. 这台新式交换机大大的减少了交换台的工作量。
- 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。
- In circuit-switched networks, such as the Public Switched Telephone Network (PSTN), multiple calls are transmitted across the same transmission medium. 在电路交换网络(例如公用电话交换网(PSTN))中,通过相同的传输介质传输多个呼叫。
- 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。
- 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。
- Our nervous system can be likened to a telephone exchanger. 我们的神经系统好比一部电话交换机。
- 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。
- In a Centrex-based telephony system, the telephone company's central office acts as the telephone exchange. 在基于Centrex的电话系统中,电话公司的中央办公室是电话交换的中心。
- If it connects,the sending machine scans the document and transmits the image over the public switched telephone network (PSTN) to the receiving machine. 如果接通了，发送机就对文件扫描，然后通过公共交换电话网（PSTN）向接收机传送文件图像。
- Megaco/H.248 is an emerging standard that will enable voice,fax and multimedia calls to be witched between the public switched telephone network and emerging IP networks. Megaco/H.;248是一个新出现的标准，能使语音、传真和多媒体呼叫在公共电话交换网（PSTN）和新出现的IP网之间进行交换。
