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江西省公用IP电话网可行性研究报告
一九九九年五月
目录
一可行性研究的依据和范围
依据····························································1
范围····························································2
IP电话的现状标准发展及问题·································2
21IP电话的现状·····················································2
22IP电话标准······················································3
23IP电话的发展····················································6
24IP电话存在的问题················································8
三建设IP电话网必要性与可行性····································9
31建设IP电话网的必要性···········································9
32建设IP电话网的可行性··········································10
33简要结论·······················································
四IP电话网建设方案··············································
41总体方案························································
42实验网业务类型·················································13
43网关及关守的设置方案···········································13
44实验网网路组织·················································16
45协议与信令·····················································24
46IP网关的同步···················································27
47号与地址·····················································27
48基本业务流程···················································28
49基本通信过程···················································29
410拨号程序······················································31
4用户身份认证··················································31
412计费··························································34
413网络管理······················································35
414业务管理······················································36
415服务质量问题··················································36
416安全性························································38
实验网容量电路估算及能力要求·······························38
51IP电话网的容量及建设规模·······································38
52网关与IP网络互连带宽测算······································43
53IP网关的安装地点···············································44
54处理能力要求···
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