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Yes. I agree with you. But I tried to give you one example(P-CSCF). The order of signals in P-CSCF's view can be different with UAC's view. For example, UPDATE and 200OK before 4xx. Then P-CSCF can have different session state. > Christer, > > >Hi, > > > >There are also "B2BUAs acting as proxies", that do not terminate the > >dialogs. > > "B2BUAs acting as proxies" is a terrible entities ! > It should behave as B2BUA. > > Regards, > > Shinji > 更多热辣资讯尽在新版MSN首页！ 立刻访问！ |
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