voip技术在应急无线宽带网终端系统中的应用与研究

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1、哈尔滨工业大学工学硕士学位论文WiththewidelyappliedofVoIPtechnologyasthebackground,combinestoday’ssocietyneedsofdigitalemergencycommunicationssystem,thispaperrealizedaVoIPbasedemergencywirelessbroadbandterminalsystem,achievedtherequirementsofthetaskthroughLANtesting,andhasgrea

2、ttheoreticalandpracticalsignificanceforfurthermoreresearchesonrelatedfields.Keywordscommunicationprotocol,communicationsystem,VoIP,SIP,H.323-III-哈尔滨工业大学工学硕士学位论文目录摘要.................................................................................................

3、..................IAbstract...............................................................................................................II第1章绪论.........................................................................................................11.1课题背景以及研

4、究意义.............................................................................11.2国内外研究现状和发展方向.....................................................................21.2.1国外VoIP技术研究现状....................................................................21.2.2国内Vo

5、IP技术研究现状....................................................................31.2.3VoIP发展方向.....................................................................................41.3课题来源及主要研究内容.......................................................................

6、..51.4本文结构....................................................................................................6第2章应急无线宽带终端系统关键技术分析..................................................72.1H.323与SIP协议研究................................................................

7、...............72.1.1H.323协议研究...................................................................................72.1.2SIP协议研究.....................................................................................102.1.3H.323与SIP对比分析..............................

8、........................................122.2IP语音通信关键技术研究.......................................................................132.2.1IP语音通信基本原理............................