共查询到19条相似文献,搜索用时 156 毫秒
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介绍部队指挥调度系统是集成了电话端局、汇接局、长途局、用户小交换机、人工转接台和调度机等多种功能的系统,系统各种设备既可自组网络,又可接入其他电话网,以及该系统的网络结构、功能、设备实现方法和部分应用场合. 相似文献
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MSC POOL技术在话务核心网中的应用研究 总被引:3,自引:1,他引:2
MSCPOOL可提高设备资源利用率,加强网络安全性。文章以国内第一个正式商用局为例,对其组网特性、技术方案、性能指标进行研究和分析,验证了系统功能的有效性。 相似文献
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本文简要地介绍了分组交换实验网(PE—NET)的设计过程、设计原则、设备配置、网络协议,以及系统应用的功能和能力,可以作为网络工作者了解PE—NET全局结构的参考材料. 相似文献
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软交换架构的综合关口局具有CDMA网络寻址功能,组网方面更加复杂。根据码分多址( CDMA)综合关口局进行系统组网的工程实践,在了解综合关口局整体组网的基础上,介绍了综合关口局的中继组网方案,分析了中继组网应遵循的基本技术要求,提出了中继组网的关键技术的应用场景。通过现场大话务量测试,得出中继组网情况下软交换关口局的话务负荷正常和设备性能稳定。研究结果为CDMA综合关口局系统组网提供了参考依据。 相似文献
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IP电话通常称作Internet电话或网络电话,是利用因特网传递数字信号并实现通话的一种先进的通信方式,IP电话使广电网络同时处理语音、图像和数据信息而向三网合一的方向迈进,软交换技术的发展是大势所趋,天水广电已建设成基于软交换的IP多媒体电话系统。 相似文献
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The paper presents an approach to ISDN suitable both for a pilot service, to be carried out in the near future in Italy, and for long-term developments with a high degree of penetration of ISDN setvices. Integration of ISDN services in the digital telephone exchange "UT" has taken place at all levels: system architecture, subscriber access structure, circuit connecting network, transmission links, call processing, and 0 & M functions. We also describe a new protocol that facilitates the dialog between exchange modules and between different exchanges for the data service. It is suitable for implementing packet transit switches with low complexity, high throughput, and low transit time. A special peripheral-handling processor handles the most repetitive functions of the protocols both in the local exchange and in other parts of the network, while the exchange central processor performs the ISDN call-handling functions; the same peripheral processors and the same module processor are used for both ISDN and telephone services. Finally, the paper shows how this architecture can evolve to include new wide-band services and new techniques to implement high-capacity fast packet switches. 相似文献
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A. Srivastava 《Microelectronics Reliability》1981,21(5):743-744
Symmetric I-V characteristics are used in voltage limiter circuits and telephone systems before telephone lines to exchange [1]. The present paper reports on the design and fabrication of a typical monolithic integrated circuit with symmetric I-V characteristic needed for application in telephone subsets. 相似文献
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Microprocessor application to a switching system, especially to telephone terminals, is expected to change switching system architecture. From this viewpoint, Basic Experimental Switching System (BESS) is designed as a functionally distributed control switching system accommodating intelligent terminals. This paper describes BESS hardware and software structures. BESS has the following characteristics. 1) Microprocessor controlled terminals can store and forward dialed digits, and can exchange data between them. Almost all services can be realized merely by a program stored in each terminal itself. 2) Functionally distributed controller of only three untailored microprocessors can treat 100 basic calls. 3) Program flexibility is especially realized by distinct exchange program separation into algorithm, data management and network control parts. 相似文献
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网络技术的发展和Internet的普及,有力促进了以Ethernet/IP为基本网络架构的电话系统的运用与实施。而作为以Ethernet/IP为基本架构的IP PBX电话交换系统,只要运用开放的数据网包交换技术来实现专用的语音服务功能,他能与现有的数据网络实现无缝集成,因而在数据、语音通信领域中应用十分广泛。为此IP PBX系统的特点及其应用技术值得大家进行研究及探讨。 相似文献