基于Asterisk的VoIP技术研究
发布时间：2019-03-13 17:15
【摘要】：近几年,互联网行业发展突飞猛进,随着下一代网络(NGN)的发展,通信行业也将面临许多来自广播电视网、互联网的挑战,三网融合已经成为发展的最终目标。VoIP技术是在这种挑战和机遇并存的环境下产生的,Vo IP以其方便、快速、扩展性强等的特征,带来了语音、视频、多媒体数据的独特发展。开源软件Asterisk作为一个软件平台实现了几乎所有硬件PBX的功能,它提供非常全面的技术应用,提供许多电信功能,把PC机变成不同类型的交换机,并且可以定制属于自己的业务。本文主要研究VoIP原理及Asterisk应用,首先分析VoIP中协议的原理和特征,基于这些不同协议的商业用途,分析不同协议的优缺点和异同点,了解整个通信行业和互联网行业机制的特色,在研究的基础上分析了基于VoIP技术的商业模式和未来发展的方向。然后,我们通过Asterisk软件搭建在liunx平台下的软交换系统,通过分析基础构建和内部代码来了解Asterisk设计的理念,基于这些研究,我们不仅了解了VoIP协议的实现模型及PSTN网络的实现模型,对整个通信语音协议和互联网语音协议都会有着深刻的认识。通过实际搭建Asterisk系统,对所研究的内容进行实践和测试。本论文还对Asterisk存在的问题及未来发展方向作了总结和展望,特别是对SIP协议的支持和在现有的平台上针对SIP的进一步开发,使其更适应国内实际应用的需求。
[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.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN916.5
本文编号：2439599
[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.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN916.5
【参考文献】
相关期刊论文 前1条
1 芦伟;曾文华;;开源交换机Asterisk的应用[J];计算机系统应用;2007年02期
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