User’s Manual

82 ノートPC ユーザーマニュアル
内蔵モデムの適応規格 (規格/プロトコルなど原文
掲載)
TheNotebookPCwithinternalmodemmodelcomplieswithJATE(Japan),FCC
(US,Canada,Korea,Taiwan),andCTR21.Theinternalmodemhasbeenapproved
inaccordancewithCouncilDecision98/482/ECforpan-Europeansingleterminal
connectiontothepublicswitchedtelephonenetwork(PSTN).Howeverdue
todi󱐯erencesbetweentheindividualPSTNsprovidedindi󱐯erentcountries,
theapprovaldoesnot,ofitself,giveanunconditionalassuranceofsuccessful
operationoneveryPSTNnetworkterminationpoint.Intheeventofproblemsyou
shouldcontactyourequipmentsupplierintherstinstance.
Overview
On4thAugust1998theEuropeanCouncilDecisionregardingtheCTR21
hasbeenpublishedintheO󱐰cialJournaloftheEC.TheCTR21appliesto
allnonvoiceterminalequipmentwithDTMF-diallingwhichisintended
tobeconnectedtotheanaloguePSTN(PublicSwitchedTelephone
Network).
CTR21(CommonTechnicalRegulation)fortheattachmentrequirements
forconnectiontotheanaloguepublicswitchedtelephonenetworksof
terminalequipment(excludingterminalequipmentsupportingthevoice
telephonyjustiedcaseservice)inwhichnetworkaddressing,ifprovided,
isbymeansofdualtonemulti-frequencysignalling.