What is a SIP URI? - GetVoIP

A SIP URI is the SIP addressing schema, or identifying string of characters, to call another person via SIP. It is, essentially, a user's sip “ ... January05,2021 ByBrynneRamella WhatisaSIPURI? FeaturedIn SIPURIsare“SessionInitiationProtocolUniformResourceIdentifiers.”Thisisacommunicationsprotocol.SIPURIscontainsufficientinformationtoinitiateandmaintainacommunicationsessionwithbothpartiesinvolvedinthecall.TheSIPURIcommunicateswhotocallwiththeprotocol.Plainlyspeaking,aSIPURIisauser’sSIPphonenumber.TheSIPURIschemeresemblesane-mailaddress. Inthisarticle,we’llgoovereverythingyouneedtoknowaboutSIPURIs.We’llcoverthefollowingsections:   WhatistheSIPProtocol WhatistheDifferenceBetweenaURIandaURL? WhatisaSIPURI? HowtoUseaSIPURI   WhatistheSIPProtocol BeforedivingintoeverythingyouneedtoknowaboutSIPsURI,let’sstartwiththebasics.Aswepreviouslyreported,SIPtechnologyistheapplicationlayerprotocolthatinitiates,maintains,andterminatesIPcallsandchats.TheTransportProtocolisanotherexampleofthis.  ItwasdevelopedbyMarkHandley,HenningSchulzrinne,EveSchooler,andJonathanRosenbergin1996andeventuallybecameadoptedasawaytosimplifyreal-timecalls.SIPbecamestandardizedbytheInternetEngineeringTaskForce(IETF)throughRFC3261. SIPisusuallysynonymouswithSIPtrunking.Withthisprocess,companiesusingaSIP-enabledPBXcanleveragetheinternettosendandreceivecalls.ASIPtrunkisavirtualphoneline.ThatmeansthatbusinessescaneliminatethecoststhatcomewithusingatraditionalPSTNphonesystem. SIPserversareusedtobothstartandendIPcalls.Datapacketsaresentbetweenendpointsinthecall,andthosepacketstriggeraSIPrequesttothecommunicationsession.ThisSIPmessagewilllooklikeanemail.Whenaparticipantreceivestheinvite,theycanclickonalinkthroughtheinviteandjointhecall.SIPtypicallyutilizesTransmissionControlProtocol(TCP)orUDPtomakethishappen. Thesessionbeginswiththelinkauthentication.Thisworksforaudiocalls,videoconferences,andinstantmessages.TheSIPProtocolusesDomainNameServer(DNS)proceduresforaclienttoresolveaSIPURI.   WhatistheDifferenceBetweenaURIandURL?   Source:prateekvjoshi ASIPURIshouldnottobeconfusedwiththerelatedtermUniformResourcesLocator(URL).Asdanielmiesslerwrites,aURIisanidentifierofaspecificresource—itcanbeclassifiedasalocator,aname,orboth.Thiscanincludeapage,book,ordocument.AURLisatypeofidentifierthatalsotellsyouhowtoaccessthatresource.TheURLdescribestheprimaryaccessmechanism(itsnetworklocation)ofwhateveryouarelookingfor. Essentially,aURLisamoredrilleddownURI.AURIissimplyjustanidentified.ButaURLisanidentifierthatinformsyouhowtogettoyourdestination.   WhatisaSIPURI?   Source: YeastarSupport ASIPURIistheSIPaddressingschema,oridentifyingstringofcharacters,tocallanotherpersonviaSIP.Itis,essentially,auser’ssip“phonenumber,”anditisinaformatsimilartoemail.Theformatis“sip:user@host, orsometimes“sip:[email protected].” ASIP-URIcommunicateswhotocallviaSIP. Accordingto3CX,“aSIPURIisauser’sSIPphonenumber.TheSIPURIresemblesane-mailaddressandiswritteninthesyntaxbelowwiththefollowingURIparameters:SIP-URI=sip:x@y:Port wherex=Usernameandy=host(domainorIP).” SomeexamplesofSIPURIsare: sip:[email protected] sip:[email protected]:4 sip:[email protected] Asyoucanimagine,usingnumericvaluesfordialingSIPaddressesiscompletelyimpractical,andthisisbydesign.ThepurposeofSIPcallingistobypassthePSTNentirelyanduseonlyinternetprotocol.InordertoassignaSIPURLtoyourphone,youmustsubscribetoaservicethatlinks(registers)yourIPphonetoyourIPaddress. ManySIPtrunkingprovidersdothis,whichisalsocalledgivingyour“SIPCredentials,”butsomeVoIPprovidersprefertowithholdthatinformation,eitherforsecuritypurposesorbecauseitworksagainsttheirbusinessmodel.AnothermethodistohavetheURLofyourwebsitebelinkedtotheSIPaddress.   HowtoUseaSIPURI InordertouseaSIPphonetodialaSIPaddress,youmustprogramtheSIPaddressusingtheuserportal.Onceyouhavedonethat,youcanuseyourphoneaddressbookto“dial”theSIPaddress. Twoeasywaystodothisaretousetheoutbound“click2call”commandonyourcomputer,whichwillringyourphoneandthereceivingphone,ortoprogramthetelephonenumberintoyourVoIPphone’sspeeddial/superdial,soallyouhavetodoispressoneortwodigitstocalltheSIPaddress. Join100kreadersandgetexclusiveVoIPindustryheadlinesdeliveredtoyourinbox. EmailAddress SubscribeToTheBlog Share Twitter Linkedin Facebook Email UseourQuoteMatchtooltoprescreenSIPTrunkingProvidersforyourneeds. Instantlycomparebottomlinequotesfromaward-winningproviders. Nothanks,Iprefertokeepmyoldandexpensiveservice. Howmanyemployeeswilluseyoursystem?Thiswillhelpusmatchyoutoprovidersspecificallyforyourcompanysize. Lines 1-9 10-49 50-99 100+ Whatfeaturesareimportanttoyou?We'llusethistomatchyouwithprovidersthatcatertoyourspecificneeds. Features MobileApp CallAnalytics CallRecording GlobalCalling Voicemail-to-Email Other Next orpressENTER Whoshouldwesendtheinformationto? FullName Next orpressENTER Whoshouldwesendtheinformationto?Tellusyourcompanyname. Company Next orpressENTER Whatisthebestnumbertoreachyou?100%Privacy.We'llNeverSpamYou! Phone Next orpressENTER We'reputtingyourproposaltogether.Whereshouldwesendit? Email Next orpressENTER