Багажник

Тип

Аналогов ствол

Аналогов ствол,whichisanalogtrunk,isthekindoffixedtelephonelineathome,whichisanalogline.Ananalogtrunkisasimplecombinationofmultipleordinarytelephonelinesthatusedtobeathome.Forexample,thecompanyneedstoapplyfor4analogtrunks.The4linesdisplayedonthemobilephoneareallA,buttheymaybeB,C,D.,Eiscomposedof4lines.ThetelecommunicationsbureauselectedanA’sGeelynumberfromthemiddle,andmadethese4linestobedisplayedasAforcibly.

DigitalTrunk

ThedigitaltrunkcurrentlyinuseismainlyPRI,alsocalledPRA,ISDN,30B+D.Infact,theyaretalkingaboutthesamekindoftrunk.Theformisquitedifferentfromtheanalogline.Usually,theopticalfiberreachesthecompany'scomputerroomfirst,andthentheopticalsignalisconvertedintoanelectricalsignal(coaxialcable)bytheopticaltransceiver.ApairofcoaxialcablesisalsoaPRI,thatis,aAlthoughitisadigitalrelay,itcansupport30channelsofvoiceinboundandoutboundsimultaneously,andworkatthesametime,whichisequivalentto30channelsofanalogrelay.

WisdomIPRelay

WisdomIPRelaycanprovideuserswithaccessservicesthroughtheInternet,thatis,aslongastheuser’sIPPBXcanberegisteredontheserviceprovider’splatform,it’sOKIncomingandoutgoingcalls.Thereisnophysicallineinthemiddle,andtheInternetiscompletelyused,whichistheVOIPtechnologyused,thatis,VOICEOVERIP.

Предимства на IP магистрални линии:

GoodsupportfordigitalservicessuchascallerID,fastconnectionspeed,lowcostandone-timeinvestment,andlowlong-distanceandlocalcalls.

Atthesametime,becausethereisnomonthlyrent,itcanbeusedasabackupforanaloganddigitalrelays.Whenthedigitalrelayfails,itcanstillbedialedoutfromtheIPrelay.

Значението на багажника

Като цяло се отнася до вътрешноофисния канал, наречен междуофисен канал;

Към потребителя, наречен потребителски багажник......

Mostofwhatissaidonthemarketnowissuitableforunits.Thesubscriberlinesthatenterthevoiceexchangewithnumbersarereferredtoastrunklinesforshortinthetelecommunicationssector.

Nomattertherearedozensofextensions(toafewhundred)intheswitchboardofaunit,thereareonlyafew(todozens)ofexternallines.Whenacustomercallsin,aslongashedialsapubliclyannounced"quotemark",thecallwilljumptothenexttelecomlinewhenbusy,andtheclientwillnothearabusytone.Inthecaseofusingatrunk,yourothernumbersdonotneedtobeannouncedtotheoutsideworld,whichgreatlyreducesthespaceoccupiedbyyouroutdooradvertisingmedia,therebyachievingthepurposeofsavingmoneyindisguise.

Trunkalsoreferstoanumbercontainingmultiplelines,andtheuseronlyneedstopublishaquotationmarktotheoutsidetoachievethefunctionofjumpingtothenextchannelwhenthephoneisbusy.Ifthisphoneisbusy,theincomingcallwillautomaticallyslidetoanothernumberwithacontinuousselectionfunction(usuallyatrunknumber).Ifthesecondphoneisalsobusy,itwillslidetothethirdline......Itispossibletoallowmultiplecallstocomeinatthesametime,andeachusercanconsiderhowmanytrunklinestoapplyforaccordingtothevolumeofcallsandthecapacityofthePBX!

Тарифа на телекомуникационния канал: 100 юана на канал на месец.

Ofcourse,itismeaninglesstoactivatethetrunkfunctionwithonenumber.Atleast3channelsarerequiredtoapplyforthetrunk.Canexperiencethefunctionofthetrunk,otherwisethemoneywillbespentinvain.

Предимствата и недостатъците на магистралната линия:

1.Theadvantageisthatthetrunklineisacommunicationvalue-addedservicefortelecommunicationsoperations.Thebrandiswell-known,famous,andthestabilityishigh,sothepriceisalsohigh

2.Thedisadvantageisthatthetrunklinemustonlybeboundtothetelecommunicationsline.Ifthecompany'stelecommunicationslineresourcesareinsufficient,thereisnowaytoexpandthecapacity.EvenifUnicomorTietongcanbeinstalleddirectlyatthistime,thereisnowaytocome.Unifiedintegrationintoaquotationmark,sobundlinghaslimitations.Theinitialinstallationandcommissioningofthetrunklineisrelativelycomplicated,andChinaTelecomalsochargesahighinitialinstallationfeeandcommissioningfeeforthisreason.Withthefiercemarketcompetition,thetrunklinesofChinaMobileandTietongcanbefreeofmonthlyrentandinstallationandcommissioningfees,oryoucanapplyforathird-partycompany,whichwillgiveyoualotofdiscounts.

3.Thetrunklinecanconnectmultipleexternallinenumbersoftheuserintoone,onlyneedtoannounceonenumbertotheoutside,andtheoutsidelineonlyneedstodialthepubliclyannouncednumber,onebyone,untiltheoutsidelineisfulluntil.Thisfunctionisespeciallysuitableforsomelargeexternaluserstousetoimprovethecompany'simage.(Tousethisoption,anoutsidelinewithapubliclyannouncednumberneedstogotothetelecommunicationsbureautoapplyformultiplecalltransferfunctions,somecitiesdonothavethesefunctions)

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