switched telephone network

An UML ( Unified Model Language) static model of the performance management objects and system for military switched telephone network has been modeled, according to the real demand of performance management for military switched telephone network and following TMN ( Telecommunication Management Network) principle.

根据军用电话交换网性能管理的实际需求，遵循TMN原理，应用UML建模技术建立了军用电话交换网性能管理的被管对象和管理系统的静态模型。

As voice communications is the primary media of communication for human being, it plays a very important role from public switched telephone network to the third generation mobile communications.

话音是人与人之间交流的主要方式，从最早出现公共交换电话网络到现在的第三代移动通信，语音通信是其最基本的功能。

Between the center and the devices, the duplex communication links are created through the public switched telephone network, thus the remote management for the devices is realized.

集中管理中心与集中管理式电话计费器之间可通过公众电话网以拨号方式建立双向通信链路，从而实现对集中管理式电话计费器的远程管理。

Integrated Services Digital Network ( ISDN) is easy to access Public Switched Telephone Network ( PSTN) and has larger transmission and capacity and higher reliability.

综合业务数字网具有容易访问公用电话交换网且传输容量大、可靠性高等特性。

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。

According to the widely dispersive water monitoring sites, a remote distributed monitoring system of water parameters is designed based on public switched telephone network.

针对环境水域分布广、地势复杂、监测分散的特点，设计了一种基于公共电话网的分布式远程水域质量监测系统。

The indicators in this category refer to the volume of traffic carried over the Public Switched Telephone Network.

此类指标是指公用交换电话网上承载的话务量。

Each base station is associated with a mobile switching center ( MSC) that connects calls to and from the base to mobiles in other cells and the public switched telephone network.

每个基站都要跟“挪动交换核心”接洽，而MSC的作用是交往于基站的号召跟其余蜂窝的挪动用户、公共交换电话网连接起来。

We used the H.323 to control the multi-media session in the traditional Public Switched Telephone Network ( PSTN) while the popular and simple Session Initiation Protocol ( SIP) in the IP network.

在传统的公共电话交换网络（PSTN）中使用H.323对多媒体会话进行控制，而在如今的IP网络中则使用主流的简单且易于扩展的会话初始协议（SIP）。

This application report describes and characterizes secure communication systems over the Public Switched Telephone Network ( PSTN).

介绍了一种用DSP设计的基于公用电话交换网络（PSTN）的安全通信系统，整个方案主要用于保证语音、数据和传真等三种通信的安全。

A new ECG teletransmission system based on embedded modem and public switched telephone network ( PSTN) is presented, which consists of family unit, PSTN and center workstation.

本文介绍了一种通过嵌入式调制解调器与公共电话网实现心电数据远程传输的系统，系统由家庭单元、公共电话网和中心工作站组成。

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。

A Performance Management Model by UML for Switched Telephone Network

用UML建立的电话网性能管理模型

It is most extensively used Lines of Communication to Public Switched Telephone Network ( PSTN), hence the video surveillance system based on PSTN possesses widespread application prospects.

公共电话交换网（PSTN）是最广泛使用的通信线路，因此在PSTN线路上传输视频具有广阔的应用前景。

It is popular to provide various infomation service on an intelligence terminal by the PSTN ( Public Switched Telephone Network).

利用PSTN固定电话网为用户提供多样化的信息服务，是当前的一个研究热点。

In the VoIP system based on SIP, the SIP/ PSTN gateway equipment is used for signaling and media conversion between IP network and public switched telephone network ( PSTN).

在基于SIP协议的VoIP系统中，SIP/PSTN网关设备用来实现IP网络和公用交换电话网络（PSTN）之间的信令和媒体转换。

In recent years, with the rapid development of the IP networks and voice technology, the traditional Public Switched Telephone Network ( PSTN) and IP networks plays an important role in the next generation network ( NGN) development.

近年来，随着IP网络和语音技术的迅速发展，传统的PSTN网络与IP网络的融合在下一代网络（NGN）的发展中起着举足轻重的作用。

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。

Research and Realization of Time Certification System Based on Public Switched Telephone Network

基于公用电话网的时间认证系统研究与实现

A telephone alarm device is designed with the Public Switched Telephone Network as a medium.

设计了一种利用公共通信网作媒介的电话自动报警器。

Gateway is the key equipment for LAN telephone communicate with the Public Switched Telephone Network, it affect the performance of the system directly.

本网关是局域网电话和公共电话网互通的关键设备，它直接影响到整个系统的运行和性能。

One Way of Encrypting Modem Based on Public Switched Telephone Network

一种基于PSTN加密调制解调器方法研究

The integral DACT transmits system status to a central station via the public switched telephone network.

综合DACT通过公用交换电话网将系统状况传输到中央站。

USA phone Number A USA phone number is a numeric identifier used to call from one to another in a public switched telephone network.

USA电话号码USA电话号码是一个数字标识符，在公共转换电话网中一个人呼叫另一个人时使用。

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。

A RS error correction experiment based on MPEG-4 video encoding is presented. It can be applied in video communication of Public Switched Telephone Network ( PSTN).

设计了基于MPEG-4视频编码的RS纠错码实验，它可应用于公共交换电话网（PSTN）或DVB系统的视频通信。

An Integrated Services Digital Network device on a public switched telephone network.

公用交换电话网上的综合业务数字网设备。

The aim of the architecture is to serve all the telecommunication networks, including not only Public Switched Telephone Network ( PSTN), Narrowband Integrated Service Digital Network ( N-ISDN), but also mobile telecommunication network and Broadband IP Network.

这个体系结构的目标是为所有的通信网络服务，既可以为现有的电话网、窄带综合业务数字网（ISDN）服务，也可以为移动通信网和宽带IP网服务。

This algorithm can be applied in video communication of Public Switched Telephone Network ( PSTN), Internet or mobile channel.

这种算法可应用于公共交换电话网（PSTN），Internet或移动信道的视频通信。

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。