【摘要】：近幾年,互聯(lián)網行業(yè)發(fā)展突飛猛進,隨著下一代網絡(NGN)的發(fā)展,通信行業(yè)也將面臨許多來自廣播電視網、互聯(lián)網的挑戰(zhàn),三網融合已經成為發(fā)展的最終目標。VoIP技術是在這種挑戰(zhàn)和機遇并存的環(huán)境下產生的,Vo IP以其方便、快速、擴展性強等的特征,帶來了語音、視頻、多媒體數(shù)據(jù)的獨特發(fā)展。開源軟件Asterisk作為一個軟件平臺實現(xiàn)了幾乎所有硬件PBX的功能,它提供非常全面的技術應用,提供許多電信功能,把PC機變成不同類型的交換機,并且可以定制屬于自己的業(yè)務。本文主要研究VoIP原理及Asterisk應用,首先分析VoIP中協(xié)議的原理和特征,基于這些不同協(xié)議的商業(yè)用途,分析不同協(xié)議的優(yōu)缺點和異同點,了解整個通信行業(yè)和互聯(lián)網行業(yè)機制的特色,在研究的基礎上分析了基于VoIP技術的商業(yè)模式和未來發(fā)展的方向。然后,我們通過Asterisk軟件搭建在liunx平臺下的軟交換系統(tǒng),通過分析基礎構建和內部代碼來了解Asterisk設計的理念,基于這些研究,我們不僅了解了VoIP協(xié)議的實現(xiàn)模型及PSTN網絡的實現(xiàn)模型,對整個通信語音協(xié)議和互聯(lián)網語音協(xié)議都會有著深刻的認識。通過實際搭建Asterisk系統(tǒng),對所研究的內容進行實踐和測試。本論文還對Asterisk存在的問題及未來發(fā)展方向作了總結和展望,特別是對SIP協(xié)議的支持和在現(xiàn)有的平臺上針對SIP的進一步開發(fā),使其更適應國內實際應用的需求。
[Abstract]:In recent years, the Internet industry has developed by leaps and bounds. With the development of the next generation network (NGN), the communication industry will also face many challenges from radio and television networks and the Internet. The integration of three networks has become the ultimate goal of development. VoIP technology is produced in the environment of the coexistence of challenges and opportunities. Because of its convenience, speed and expansibility, VoIP has brought the unique development of voice, video and multimedia data. As a software platform, open source software Asterisk implements almost all hardware PBX functions. It provides a very comprehensive technology application, provides many telecommunication functions, transforms PC into different types of switches, and can customize its own business. This paper mainly studies the principle of VoIP and the application of Asterisk. Firstly, it analyzes the principles and characteristics of the protocols in VoIP. Based on the commercial uses of these different protocols, the advantages, disadvantages, differences and similarities of different protocols are analyzed. On the basis of studying the characteristics of the whole communication industry and Internet industry mechanism, this paper analyzes the business model based on VoIP technology and the direction of its future development. Then, we build the softswitch system under the liunx platform through the Asterisk software, through the analysis of the basic construction and internal code to understand the concept of Asterisk design, based on these studies, We not only understand the implementation model of VoIP protocol and PSTN network, but also have a deep understanding of the whole communication voice protocol and Internet voice protocol. Through the actual construction of the Asterisk system, the study of the content of the practice and testing. This paper also summarizes and looks forward to the existing problems and future development direction of Asterisk, especially the support of SIP protocol and the further development of SIP on the existing platform, so that it can meet the needs of domestic application.
【學位授予單位】：西安電子科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TN916.5

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相關期刊論文 前1條

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本文編號：2439599