ITU-T F.71(11-1988) (英) Interconnection of private teleprinter……

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1、INTERNATIONALTELECOMMUNICATIONUNION)45 4&TELECOMMUNICATIONSTANDARDIZATIONSECTOROFITU/0%2!4)/.3!.$15!,)49/&3%26)#%4%,%'2!0(3%26)#%3).4%2#/..%#4)/./&02)6!4%4%,%02).4%2.%47/2+37)4(4(%4%,%8.%47/2+)45 4Recommendation&(Extractfromthe

2、"LUE"OOK)NOTES1ITU-TRecommendationF.71waspublishedinFascicleII.4oftheBlueBook.ThisfileisanextractfromtheBlueBook.WhilethepresentationandlayoutofthetextmightbeslightlydifferentfromtheBlueBookversion,thecontentsofthefileareidenticaltotheBlueBookversionandcopyr

3、ightconditionsremainunchanged(seebelow).2InthisRecommendation,theexpression“Administration”isusedforconcisenesstoindicatebothatelecommunicationadministrationandarecognizedoperatingagency.ãITU1988,1993Allrightsreserved.Nopartofthispublicationmaybereproducedoru

4、tilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromtheITU.RecommendationF.71FascicleII.4-Rec.F.71INTERCONNECTIONOFPRIVATETELEPRINTERNETWORKSWITHTHETELEXNETWORKTheCCITT,considering(a)theoperation

5、alprovisionsfortheinternationaltelexservicelaiddowninRecommendationF.60;(b)thatinvariouscountriespossessingpublictelexnetworkstherealsoexistnumerousprivateteleprinternetworksusingtheirownexchangesandconformingwiththenationalregulationsofthecountryconcerned;(c

6、)thattheownersoftheseprivatenetworksarefrequentlysubstantialusersofthetelexserviceemployingmultiplesubscriberlines;(d)that,consequently,itisverydesirabletoallowthethrough-connectionofcallsbetweenteleprintersconnectedtoprivateexchangesandthoseconnectedtothepub

7、lictelexnetwork;(e)thatinthetelephoneservicetheabilitytoestablishcallsbetweenstationsconnectedtoprivateandpublicexchangeshaslongbeenavailable;(f)thattheoperationoftheinternationalpublictelexservicemustbeneitherhamperednorlimitedbyprivateexchangesandhencetheco

8、nditionsforinterconnectionofthetwotypesofnetworkshouldbestandardized,declaresthefollowing1Anyterminalinaprivatenetworkthatmaybedirectlyconnected(circuitswitched)toaterminalintheinternatio