This thesis discusses SIP performance test method and criterion, putting forward test schemes based on basic call flows and analyzing the problem of SIP signaling and media stream traversing the NAT.

本文探讨了SIP协议性能测试方法与评价标准，提出了基于基本呼叫流程的测试方案，并对测试方案中SIP信令和媒体流的NAT穿越问题作了深入的分析。

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This thesis discusses SIP performance test method and criterion, putting forward test schemes based on basic call flows and analyzing the problem of SIP signaling and media stream traversing the NAT.

本文探讨了SIP协议性能测试方法与评价标准，提出了基于基本呼叫流程的测试方案，并对测试方案中SIP信令和媒体流的NAT穿越问题作了深入的分析。

youdao