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1、INTERNATIONALTELECOMMUNICATIONUNIONITU-TE.113TELECOMMUNICATION(03/93)STANDARDIZATIONSECTOROFITUTELEPHONENETWORKANDISDNOPERATION,NUMBERING,ROUTINGANDMOBILESERVICEVALIDATIONPROCEDURESFORTHEINTERNATIONALTELECOMMUNICATIONSCHARGECARDSERVICEITU-TRecommendatio
2、nE.113(Previously“CCITTRecommendation”)FOREWORDTheITUTelecommunicationStandardizationSector(ITU-T)isapermanentorganoftheInternationalTelecom-municationUnion.TheITU-Tisresponsibleforstudyingtechnical,operatingandtariffquestionsandissuingRecommendationson
3、themwithaviewtostandardizingtelecommunicationsonaworldwidebasis.TheWorldTelecommunicationStandardizationConference(WTSC),whichmeetseveryfouryears,establishedthetopicsforstudybytheITU-TStudyGroupswhich,intheirturn,produceRecommendationsonthesetopics.ITU-
4、TRecommendationE.113wasrevisedbytheITU-TStudyGroupI(1988-1993)andwasapprovedbytheWTSC(Helsinki,March1-12,1993).___________________NOTES1AsaconsequenceofareformprocesswithintheInternationalTelecommunicationUnion(ITU),theCCITTceasedtoexistasof28February19
5、93.Initsplace,theITUTelecommunicationStandardizationSector(ITU-T)wascreatedasof1March1993.Similarly,inthisreformprocess,theCCIRandtheIFRBhavebeenreplacedbytheRadiocommunicationSector.InordernottodelaypublicationofthisRecommendation,nochangehasbeenmadein
6、thetexttoreferencescontainingtheacronyms“CCITT,CCIR,orIFRB”ortheirassociatedentitiessuchasPlenaryAssembly,Secretariat,etc.FutureeditionsofthisRecommendationwillcontaintheproperterminologyrelatedtothenewITUstructure.2InthisRecommendation,theexpression“Ad
7、ministration”isusedforconcisenesstoindicatebothatelecommunicationadministrationandarecognizedoperatingagency.ITU1993Allrightsreserved.Nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandm
8、icrofilm,withoutpermissioninwritingfromtheITU.RecommendationE.1131)RecommendationE.113(03/93)VALIDATIONPROCEDURESFORTHEINTERNATIONALTELECOMMUNICATIONSCHARGECARDSERVICE(Melbourne,1988;revisedHelsinki,1993)PreambleWorkisprogressing