百度文库 - 好好学习，天天向上
摘要
进入21世纪以来，因特网得到了飞速的发展并且迅速的普及和应用，随着3G时代的到来和现代网络技术的迅猛发展，传统的PSTN(公共交换电话网络)上的语音业务将逐步迁移到IP网络上。同时，随着IP技术框架中汇聚网络研究的发展和IP语音技术的提出，VoIP技术为基于IP网络的语音通信提供了强大而有效的手段，以该技术为基础的语音通信必将成为下一代网络应用的发展方向之一。VoIP是一种以IP电话为主并推出相应的增值业务的技术。该技术是以IP技术的分组化、数字化传输技术为基础。
VoIP的技术的出现不仅使得人们日常所使用的一些简单的通话服务具备了灵活性以及智能性，而且由于IP网络可以快速灵活地引入新的比较复杂的业务，使得运营商会相对容易的切入电信业务。这也必将导致利用IP网络实现包括移动电话、家庭电话、寻呼和邮件等业务的用户迅速增加。并且VoIP允许一些新的通信方式，能够提供多媒体的内容满足用户的需求也是一大趋势，这些都将成为推动VoIP发展的最终决定因素。
本文研究了IP语音通信技术基本概念和原理，并对常用的通信协议做了较详细的介绍，在此基础上透过近几年主流IP语音通信技术的发展趋势，提出了解决IP语音通信的一些关键技术。最后论文在整合一系列技术的基础上通过wifi实现了在两台笔记本上的IP语音交流测试，并取得了较好效果。
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百度文库 - 好好学习，天天向上
关键词 ： UDP 语音通信 数字化技术
Abstract
In the 21 century, the Internet have developed rapidly and rapid popularization and application, with the arrival of the era of 3 G and the rapid development of modern network technology, the traditional PSTN (public switched telephone network) of voice business will gradually move to IP network. At the same time, along with the IP technology in network convergence framework of the development of the research and IP voice technology puts forward, VoIP technology based on IP network for the voice communication provides a powerful and effective means, to
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百度文库 - 好好学习，天天向上
the technology as the foundation of voice communication will become the next generation network application development direction of. VoIP is a IP telephone primarily and launch the corresponding value-added business technology. This technology is the grouping of IP technology, digital transmission of technology as the foundation.
VoIP technology not only makes people daily in the use of some simple call service have the flexibility and intelligent, and because the IP network can quickly flexibility to the introduction of new complex business, making operation chamber of commerce is relatively easy to cut into the telecoms business. This will lead to use of IP network realization including mobile phones, home phone, paging and mail business users increase quickly. And VoIP allows some new communication mode, can provide the multimedia content to meet the demand of user is also a big trend, which will become the impetus of the development of the VoIP finally decided to factors.
This paper studies the IP voice communications technology basic concept and principle, and to commonly used communication protocol to do a more detailed
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基于IP的语音通信
