ITU-T F.107(11-1988) (英) Rules for phototelegraph calls established……

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1、INTERNATIONALTELECOMMUNICATIONUNION)45 4&TELECOMMUNICATIONSTANDARDIZATIONSECTOROFITU/0%2!4)/.3!.$15!,)49/&3%26)#%4%,%'2!0(3%26)#%325,%3&/20(/4/4%,%'2!0(#!,,3%34!",)3(%$/6%2#)2#5)43./2-!,,953%$&/24%,%0(/.%42!&&)#)45 4Recommendation&(Extractfromth

2、e"LUE"OOK)NOTES1ITU-TRecommendationF.107(newnumberingofRec.F.82)waspublishedinFascicleII.4oftheBlueBook.ThisfileisanextractfromtheBlueBook.WhilethepresentationandlayoutofthetextmightbeslightlydifferentfromtheBlueBookversion,thecontentsofthefileareidenticaltotheBlueBookversion

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

4、nyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromtheITU.RecommendationF.107RULESFORPHOTOTELEGRAPHCALLSESTABLISHEDOVERCIRCUITSNORMALLYUSEDFORTELEPHONETRAFFICTheCCITT,considering(a)that,ininternationalphototelegraphcommuni

5、cations,theoccupationtimeofinternationaltelephonecircuitsoftengreatlyexceedsthedurationoftheactualphototelegraphcall;(b)thatthisdrawbackresultsinpartfromtheinadequacyofexistingrulesonthesettingup,supervisionandclearingofphototelegraphcallsovercircuitsnormallyusedfortelephonetr

6、affic,evenifthesecircuitshavebeendesignatedinadvanceascapableofcarryingphototelegraphcalls;(c)thatphototelegraphcommunicationsbetweenpublicstationsontheonehandandpublicandprivatestationsontheother,requireclosecollaborationbetweenthetelegraphandtelephoneservicesofthevariousAdmi

7、nistrations;(d)that,ontheotherhand,phototelegraphcommunicationsbetweenprivatestationsdonotconcernthetelegraphservices,althoughitisdesirableforallphototelegraphcallsbetweenpublicstations,betweenpublicandprivatestations,andbetweenprivatestationstobeestablishedinthesameway,unanim

8、ouslydeclaresthatthefollowingrulesshouldbeappliedtotheprovisi