YDT1285-2003公用电信网间通信质量测试方法--电话呼叫的接通率和拨号后延时.pdf

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1、1'1u中华人民共和国通信行业标准丫D/T1285-2003公用电信网间通信质量测试方法—电话呼叫的接通率和拨号后时延Thetestmethodforqualityofcommunicationforinter-publictelecomnetworkmallcompleteratioandpost-diallingdelayfortelephonecal2003-08-12发布2003-08-12实施中华人民共和国信息产业部发布丫D/T1285-2003目次前言·................

2、..........................................................................................................11范围·······，···········································································，···，················，··········⋯⋯12规范性引用文件···············

3、··························。··········，······················。··························⋯⋯13定义及缩略语···········································································...................................I3.1定义··..................··················

4、···········4···...................................................13.1.1呼损(CallLossProbability)，··············，。··。··············，···。。···。············，···。········一13.1.2发端网路的呼损(CallLossProbabilityinOriginatingNetwork)··························一13.1.

5、3接通率(CallCompletionRate)········································。························⋯⋯13.1.4来话接通率(CallCompleteRatioforIncomingCall)····································⋯⋯23.1.5拨号后时延(PostDiallingDelay)·····，，··········，··，，，，·，···‘·····‘····，，·····

6、···········一23.1.6忙时(BusyHour)···········，·····。············，························。········，···············⋯⋯23.1.7试占比(BidRatio)·················································································⋯⋯23.2缩略语······························

7、···········································································⋯⋯24测试要求·.............................................................................··，·····“·····，···，·，···‘········一24.1测试结构··········，·················，···················

8、······················································一24.2测试仪表要求································································································⋯⋯34.2.1智能测试单元的功能要求········································，······················