<!doctypehtml><html class=client-nojs dir=ltr lang=en><meta charset=utf-8><title>
   SIP trunking - Wikipedia
  </title><script>document.documentElement.className="client-js";RLCONF={"wgBreakFrames":!1,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy","wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgRequestId":"a07cd01c-69d8-4d34-a5b1-686ba712afe2","wgCSPNonce":!1,"wgCanonicalNamespace":"","wgCanonicalSpecialPageName":!1,"wgNamespaceNumber":0,"wgPageName":"SIP_trunking","wgTitle":"SIP trunking","wgCurRevisionId":1050555897,"wgRevisionId":1050555897,"wgArticleId":31136536,"wgIsArticle":!0,"wgIsRedirect":!1,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["All articles with unsourced statements","Articles with unsourced statements from December 2017","Telecommunication services","VoIP protocols"],"wgPageContentLanguage":"en","wgPageContentModel":"wikitext","wgRelevantPageName":"SIP_trunking","wgRelevantArticleId":31136536,"wgIsProbablyEditable":
!0,"wgRelevantPageIsProbablyEditable":!0,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgFlaggedRevsParams":{"tags":{"status":{"levels":-1}}},"wgMediaViewerOnClick":!0,"wgMediaViewerEnabledByDefault":!0,"wgPopupsFlags":10,"wgVisualEditor":{"pageLanguageCode":"en","pageLanguageDir":"ltr","pageVariantFallbacks":"en"},"wgMFDisplayWikibaseDescriptions":{"search":!0,"nearby":!0,"watchlist":!0,"tagline":!1},"wgWMESchemaEditAttemptStepOversample":!1,"wgULSCurrentAutonym":"English","wgNoticeProject":"wikipedia","wgEditSubmitButtonLabelPublish":!0,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":!0,"wgGENewcomerTasksGuidanceEnabled":!0,"wgGEAskQuestionEnabled":!1,"wgGELinkRecommendationsFrontendEnabled":!1,"wgCentralAuthMobileDomain":!1,"wgWikibaseItemId":"Q3943657"};RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.cite.styles":
"ready","skins.vector.styles.legacy":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","ext.wikimediaBadges":"ready","wikibase.client.init":"ready"};RLPAGEMODULES=["ext.cite.ux-enhancements","site","mediawiki.page.ready","mediawiki.toc","skins.vector.legacy.js","ext.gadget.ReferenceTooltips","ext.gadget.charinsert","ext.gadget.extra-toolbar-buttons","ext.gadget.refToolbar","ext.gadget.switcher","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.compactlinks","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.centralauth.centralautologin","ext.growthExperiments.SuggestedEditSession"];</script><script>(RLQ=window.RLQ||[]).push(function(){mw.loader.implement("user.options@1hzgi",function($,jQuery,require,module){/*@nomin*/mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"});
});});</script><link href=/w/load.php?lang=en&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cskins.vector.styles.legacy%7Cwikibase.client.init&only=styles&skin=vector rel=stylesheet><script async src=/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector></script><meta name=ResourceLoaderDynamicStyles><link href=/w/load.php?lang=en&modules=site.styles&only=styles&skin=vector rel=stylesheet><meta content="MediaWiki 1.38.0-wmf.6"name=generator><meta content=origin name=referrer><meta content=origin-when-crossorigin name=referrer><meta content=origin-when-cross-origin name=referrer><meta content=telephone=no name=format-detection><meta content="SIP trunking - Wikipedia"property=og:title><meta content=website property=og:type><link media="only screen and (max-width: 720px)"href=//en.m.wikipedia.org/wiki/SIP_trunking rel=alternate><link title="Edit this page"href=/w/index.php?title=SIP_trunking&action=edit rel=alternate type=application/x-wiki><link href=/static/apple-touch/wikipedia.png rel=apple-touch-icon><link rel="shortcut icon"href=/static/favicon/wikipedia.ico><link title="Wikipedia (en)"href=/w/opensearch_desc.php rel=search type=application/opensearchdescription+xml><link href=//en.wikipedia.org/w/api.php?action=rsd rel=EditURI type=application/rsd+xml><link href=https://creativecommons.org/licenses/by-sa/3.0/ rel=license><link href=https://en.wikipedia.org/wiki/SIP_trunking rel=canonical><link href=//meta.wikimedia.org rel=dns-prefetch><link href=//login.wikimedia.org rel=dns-prefetch><body class="mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-SIP_trunking rootpage-SIP_trunking skin-vector action-view skin-vector-legacy"><div class=noprint id=mw-page-base></div><div class=noprint id=mw-head-base></div><div class=mw-body id=content role=main><a id=top> </a><div id=siteNotice></div><div class=mw-indicators></div><h1 class=firstHeading id=firstHeading>SIP trunking</h1><div class=vector-body id=bodyContent><div class=noprint id=siteSub>From Wikipedia, the free encyclopedia</div><div id=contentSub></div><div id=contentSub2></div><div id=jump-to-nav></div><a class=mw-jump-link href=#mw-head> Jump to navigation </a><a class=mw-jump-link href=#searchInput> Jump to search </a><div class="mw-body-content mw-content-ltr"dir=ltr id=mw-content-text lang=en><div class=mw-parser-output><p><b> SIP trunking </b> is a <a title="Voice over Internet Protocol"class=mw-redirect href=/wiki/Voice_over_Internet_Protocol> voice over Internet Protocol </a> (VoIP) technology and streaming media service based on the <a title="Session Initiation Protocol"href=/wiki/Session_Initiation_Protocol> Session Initiation Protocol </a> (SIP) by which <a title="Internet telephony service provider"href=/wiki/Internet_telephony_service_provider> Internet telephony service providers </a> (ITSPs) deliver telephone services and <a title="Unified communications"href=/wiki/Unified_communications> unified communications </a> to customers equipped with SIP-based <a class=mw-redirect href=/wiki/IP-PBX title=IP-PBX> private branch exchange </a> (IP-PBX) and unified communications facilities. <sup class=reference id=cite_ref-1> <a href=#cite_note-1> [1] </a> </sup> Most unified communications applications provide voice, video, and other streaming media applications such as desktop sharing, web conferencing, and shared whiteboard. <sup class=reference id=cite_ref-2> <a href=#cite_note-2> [2] </a> </sup><div aria-labelledby=mw-toc-heading class=toc id=toc role=navigation><input class=toctogglecheckbox id=toctogglecheckbox role=button style=display:none type=checkbox><div class=toctitle dir=ltr lang=en><h2 id=mw-toc-heading>Contents</h2><span class=toctogglespan> <label class=toctogglelabel for=toctogglecheckbox></label> </span></div><ul><li class="toclevel-1 tocsection-1"><a href=#Domains> <span class=tocnumber> 1 </span> <span class=toctext> Domains </span> </a><li class="toclevel-1 tocsection-2"><a href=#Architecture> <span class=tocnumber> 2 </span> <span class=toctext> Architecture </span> </a><li class="toclevel-1 tocsection-3"><a href=#See_also> <span class=tocnumber> 3 </span> <span class=toctext> See also </span> </a><li class="toclevel-1 tocsection-4"><a href=#References> <span class=tocnumber> 4 </span> <span class=toctext> References </span> </a></ul></div><h2><span class=mw-headline id=Domains> Domains </span> <span class=mw-editsection> <span class=mw-editsection-bracket> [ </span> <a title="Edit section: Domains"href=/w/index.php?title=SIP_trunking&action=edit&section=1> edit </a> <span class=mw-editsection-bracket> ] </span> </span></h2><p>The architecture of SIP trunking provides a partitioning of the unified communications network into two different domains of expertise: <sup class=reference id=cite_ref-3> <a href=#cite_note-3> [3] </a> </sup><ul><li>Private domain: refers to a part of the network connected to a PBX or unified communications server.<li>Public domain: refers to the part of the network which allows access into the <a title="Public switched telephone network"href=/wiki/Public_switched_telephone_network> public switched telephone network </a> (PSTN) or <a title="Public land mobile network"href=/wiki/Public_land_mobile_network> public land mobile network </a> (PLMN).</ul><p>The interconnection between the two domains must occur through a SIP trunk. <sup class="noprint Inline-Template Template-Fact"style=white-space:nowrap;> [ <i> <a title="Wikipedia:Citation needed"href=/wiki/Wikipedia:Citation_needed> <span title="This claim needs references to reliable sources. (December 2017)"> citation needed </span> </a> </i> ] </sup> The interconnection between the two domains, created by transport via the <a title="Internet Protocol"href=/wiki/Internet_Protocol> Internet Protocol </a> (IP), involves setting specific rules and regulations as well as the ability to handle some services and protocols that fall under the name of SIP trunking. <sup class=reference id=cite_ref-4> <a href=#cite_note-4> [4] </a> </sup><p>The ITSP is responsible to the applicable regulatory authority regarding all the following law obligations of the public domain: <sup class=reference id=cite_ref-5> <a href=#cite_note-5> [5] </a> </sup><ul><li>Tracking traffic;<li>Identification of users;<li>Implementation of the <a title="Lawful interception"href=/wiki/Lawful_interception> lawful interception </a> mechanisms.</ul><p>The private domain instead, by nature, is not subject to particular constraints of law, and may be either the responsibility of the ITSP, the end user (enterprise), or of a third party who provides the voice services to the company <sup class=reference id=cite_ref-6> <a href=#cite_note-6> [6] </a> </sup> <sup class=reference id=cite_ref-7> <a href=#cite_note-7> [7] </a> </sup><h2><span class=mw-headline id=Architecture> Architecture </span> <span class=mw-editsection> <span class=mw-editsection-bracket> [ </span> <a title="Edit section: Architecture"href=/w/index.php?title=SIP_trunking&action=edit&section=2> edit </a> <span class=mw-editsection-bracket> ] </span> </span></h2><p>Each domain has elements that perform the characteristic features requested of that domain, in particular the result (as part of any front-end network to the customer) is logically divided into two levels:<ul><li>The control of access (Class 5 <a href=/wiki/Softswitch title=Softswitch> softswitch </a> );<li>Network-border elements <sup class=reference id=cite_ref-8> <a href=#cite_note-8> [8] </a> </sup> <sup class=reference id=cite_ref-9> <a href=#cite_note-9> [9] </a> </sup> <sup class=reference id=cite_ref-10> <a href=#cite_note-10> [10] </a> </sup> that separate the Public Domain from the Private Domain, implementing all the appropriate ITSP phone security policies.</ul><p>The private domain consists of three levels:<ul><li>corporate-border elements that separate the public domain from the private domain, implementing the appropriate company security policies<li>central corporate switching node<li>IP PBXs</ul><h2><span class=mw-headline id=See_also> See also </span> <span class=mw-editsection> <span class=mw-editsection-bracket> [ </span> <a title="Edit section: See also"href=/w/index.php?title=SIP_trunking&action=edit&section=3> edit </a> <span class=mw-editsection-bracket> ] </span> </span></h2><ul><li><a href=/wiki/Trunking title=Trunking> Trunking </a><li><a title="Session border controller"href=/wiki/Session_border_controller> Session border controller </a> (SBC)</ul><h2><span class=mw-headline id=References> References </span> <span class=mw-editsection> <span class=mw-editsection-bracket> [ </span> <a title="Edit section: References"href=/w/index.php?title=SIP_trunking&action=edit&section=4> edit </a> <span class=mw-editsection-bracket> ] </span> </span></h2><style data-mw-deduplicate=TemplateStyles:r1011085734>.mw-parser-output .reflist{font-size:90%;margin-bottom:0.5em;list-style-type:decimal}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class=reflist><div class=mw-references-wrap><ol class=references><li id=cite_note-1><span class=mw-cite-backlink> <b> <a href=#cite_ref-1> ^ </a> </b> </span> <span class=reference-text> <style data-mw-deduplicate=TemplateStyles:r999302996>.mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .id-lock-free a,.mw-parser-output .citation .cs1-lock-free a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited a,.mw-parser-output .id-lock-registration a,.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription a,.mw-parser-output .citation .cs1-lock-subscription a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}</style> <cite class="citation web cs1"> <a class="external text"href=http://www.fierceenterprisecommunications.com/special-reports/sip-trunking-migration-enterprise-opportunities-and-challenges rel=nofollow> "SIP trunking migration: Enterprise opportunities and challenges" </a> . </cite> <span class=Z3988 title=ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=SIP+trunking+migration%3A+Enterprise+opportunities+and+challenges&rft_id=http%3A%2F%2Fwww.fierceenterprisecommunications.com%2Fspecial-reports%2Fsip-trunking-migration-enterprise-opportunities-and-challenges&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIP+trunking> </span> </span><li id=cite_note-2><span class=mw-cite-backlink> <b> <a href=#cite_ref-2> ^ </a> </b> </span> <span class=reference-text> <link href=mw-data:TemplateStyles:r999302996 rel=mw-deduplicated-inline-style> <cite class="citation web cs1"> <a class="external text"href=http://tcg3.com/wp-content/uploads/sites/7/2015/05/SIP-Trunking.jpg rel=nofollow> "SIP Trunking Explained" </a> . <i> Technology Convergence Group </i> <span class=reference-accessdate> . Retrieved <span class=nowrap> 8 September </span> 2015 </span> . </cite> <span class=Z3988 title=ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Technology+Convergence+Group&rft.atitle=SIP+Trunking+Explained&rft_id=http%3A%2F%2Ftcg3.com%2Fwp-content%2Fuploads%2Fsites%2F7%2F2015%2F05%2FSIP-Trunking.jpg&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIP+trunking> </span> </span><li id=cite_note-3><span class=mw-cite-backlink> <b> <a href=#cite_ref-3> ^ </a> </b> </span> <span class=reference-text> <link href=mw-data:TemplateStyles:r999302996 rel=mw-deduplicated-inline-style> <cite class="citation conference cs1"id=CITEREFGaboliPuglia2011> Gaboli, Ivan; Puglia, Virgilio (Jan 2011). <a class="external text"href=https://ieeexplore.ieee.org/document/5682153 rel=nofollow> "SIP Trunking the route to the new VoIP services" </a> . <i> Kaleidoscope: Beyond the Internet? − Innovations for future networks and services, 2010 ITU-T, 13-15 Dec 2010 </i> . IEEE. <a title="ISBN (identifier)"class=mw-redirect href=/wiki/ISBN_(identifier)> ISBN </a>   <a href=/wiki/Special:BookSources/978-1-4244-8272-6 title=Special:BookSources/978-1-4244-8272-6> <bdi> 978-1-4244-8272-6 </bdi> </a> . </cite> <span class=Z3988 title=ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=conference&rft.atitle=SIP+Trunking+the+route+to+the+new+VoIP+services&rft.btitle=Kaleidoscope%3A+Beyond+the+Internet%3F+%E2%88%92+Innovations+for+future+networks+and+services%2C+2010+ITU-T%2C+13-15+Dec+2010&rft.pub=IEEE&rft.date=2011-01&rft.isbn=978-1-4244-8272-6&rft.aulast=Gaboli&rft.aufirst=Ivan&rft.au=Puglia%2C+Virgilio&rft_id=https%3A%2F%2Fieeexplore.ieee.org%2Fdocument%2F5682153&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIP+trunking> </span> </span><li id=cite_note-4><span class=mw-cite-backlink> <b> <a href=#cite_ref-4> ^ </a> </b> </span> <span class=reference-text> <link href=mw-data:TemplateStyles:r999302996 rel=mw-deduplicated-inline-style> <cite class="citation web cs1"> <a class="external text"href=http://sipcity.com.au/what-is-sip-trunking/ rel=nofollow> "SIP trunking explained" </a> . 2014-07-30. </cite> <span class=Z3988 title=ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=SIP+trunking+explained&rft.date=2014-07-30&rft_id=http%3A%2F%2Fsipcity.com.au%2Fwhat-is-sip-trunking%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIP+trunking> </span> </span><li id=cite_note-5><span class=mw-cite-backlink> <b> <a href=#cite_ref-5> ^ </a> </b> </span> <span class=reference-text> <link href=mw-data:TemplateStyles:r999302996 rel=mw-deduplicated-inline-style> <cite class="citation web cs1"> <a class="external text"href=http://voippla.net/link4.html rel=nofollow> "Legal issues in different countries" </a> . </cite> <span class=Z3988 title=ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Legal+issues+in+different+countries&rft_id=http%3A%2F%2Fvoippla.net%2Flink4.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIP+trunking> </span> </span><li id=cite_note-6><span class=mw-cite-backlink> <b> <a href=#cite_ref-6> ^ </a> </b> </span> <span class=reference-text> <link href=mw-data:TemplateStyles:r999302996 rel=mw-deduplicated-inline-style> <cite class="citation web cs1"> <a class="external text"href=http://siptrunk.com rel=nofollow> "SIP trunking" </a> . </cite> <span class=Z3988 title=ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=SIP+trunking&rft_id=http%3A%2F%2Fsiptrunk.com&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIP+trunking> </span> </span><li id=cite_note-7><span class=mw-cite-backlink> <b> <a href=#cite_ref-7> ^ </a> </b> </span> <span class=reference-text> <link href=mw-data:TemplateStyles:r999302996 rel=mw-deduplicated-inline-style> <cite class="citation web cs1"> <a class="external text"href=https://voipoffice.com rel=nofollow> "VoIP Office" </a> . </cite> <span class=Z3988 title=ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=VoIP+Office&rft_id=https%3A%2F%2Fvoipoffice.com&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIP+trunking> </span> </span><li id=cite_note-8><span class=mw-cite-backlink> <b> <a href=#cite_ref-8> ^ </a> </b> </span> <span class=reference-text> <link href=mw-data:TemplateStyles:r999302996 rel=mw-deduplicated-inline-style> <cite class="citation web cs1"> <a class="external text"href=http://www.cisco.com/en/US/prod/collateral/routers/ps9343/white_paper_c11-540690.html rel=nofollow> "Role of Border Element" </a> . Cisco. </cite> <span class=Z3988 title=ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Role+of+Border+Element&rft.pub=Cisco&rft_id=http%3A%2F%2Fwww.cisco.com%2Fen%2FUS%2Fprod%2Fcollateral%2Frouters%2Fps9343%2Fwhite_paper_c11-540690.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIP+trunking> </span> </span><li id=cite_note-9><span class=mw-cite-backlink> <b> <a href=#cite_ref-9> ^ </a> </b> </span> <span class=reference-text> <link href=mw-data:TemplateStyles:r999302996 rel=mw-deduplicated-inline-style> <cite class="citation web cs1"> <a class="external text"href=https://web.archive.org/web/20110717230308/http://www.voiplogic.com/stuff/contentmgr/files/8a48b03d58b019a3836f9b7f1b4bd8e2/technical_specifications/ds_apkt_net_net_sbc.pdf rel=nofollow> "Acme Packet Net-Net session border controllers" </a> <span class=cs1-format> (PDF) </span> . Acme Packet. Archived from <a class="external text"href=http://www.voiplogic.com/stuff/contentmgr/files/8a48b03d58b019a3836f9b7f1b4bd8e2/technical_specifications/ds_apkt_net_net_sbc.pdf rel=nofollow> the original </a> <span class=cs1-format> (PDF) </span> on 2011-07-17. </cite> <span class=Z3988 title=ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Acme+Packet+Net-Net+session+border+controllers&rft.pub=Acme+Packet&rft_id=http%3A%2F%2Fwww.voiplogic.com%2Fstuff%2Fcontentmgr%2Ffiles%2F8a48b03d58b019a3836f9b7f1b4bd8e2%2Ftechnical_specifications%2Fds_apkt_net_net_sbc.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIP+trunking> </span> </span><li id=cite_note-10><span class=mw-cite-backlink> <b> <a href=#cite_ref-10> ^ </a> </b> </span> <span class=reference-text> <link href=mw-data:TemplateStyles:r999302996 rel=mw-deduplicated-inline-style> <cite class="citation web cs1"> <a class="external text"href=https://web.archive.org/web/20130722095712/http://www.ingate.com/Solutions_enterprise.php rel=nofollow> "SIP Trunking Enterprise Solutions" </a> . Ingate Systems. Archived from <a class="external text"href=http://www.ingate.com/Solutions_enterprise.php rel=nofollow> the original </a> on 2013-07-22. </cite> <span class=Z3988 title=ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=SIP+Trunking+Enterprise+Solutions&rft.pub=Ingate+Systems&rft_id=http%3A%2F%2Fwww.ingate.com%2FSolutions_enterprise.php&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIP+trunking> </span> </span></ol></div></div></div><noscript><img style="border: none; position: absolute;"alt height=1 src=//en.wikipedia.org/wiki/Special:CentralAutoLogin/start?type=1x1 width=1></noscript><div class=printfooter>Retrieved from " <a dir=ltr href=https://en.wikipedia.org/w/index.php?title=SIP_trunking&oldid=1050555897> https://en.wikipedia.org/w/index.php?title=SIP_trunking&oldid=1050555897 </a> "</div></div><div class=catlinks data-mw=interface id=catlinks><div class=mw-normal-catlinks id=mw-normal-catlinks><a href=/wiki/Help:Category title=Help:Category> Categories </a> : <ul><li><a title="Category:Telecommunication services"href=/wiki/Category:Telecommunication_services> Telecommunication services </a><li><a title="Category:VoIP protocols"href=/wiki/Category:VoIP_protocols> VoIP protocols </a></ul></div><div class="mw-hidden-catlinks mw-hidden-cats-hidden"id=mw-hidden-catlinks>Hidden categories: <ul><li><a title="Category:All articles with unsourced statements"href=/wiki/Category:All_articles_with_unsourced_statements> All articles with unsourced statements </a><li><a title="Category:Articles with unsourced statements from December 2017"href=/wiki/Category:Articles_with_unsourced_statements_from_December_2017> Articles with unsourced statements from December 2017 </a></ul></div></div></div></div><div id=mw-data-after-content><div class=read-more-container></div></div><div id=mw-navigation><h2>Navigation menu</h2><div id=mw-head><nav class="mw-portlet mw-portlet-personal vector-user-menu-legacy vector-menu"aria-labelledby=p-personal-label id=p-personal role=navigation><h3 aria-label class=vector-menu-heading id=p-personal-label><span> Personal tools </span></h3><div class=vector-menu-content><ul class=vector-menu-content-list><li class=mw-list-item id=pt-anonuserpage><span> Not logged in </span><li class=mw-list-item id=pt-anontalk><a title="Discussion about edits from this IP address [n]"accesskey=n href=/wiki/Special:MyTalk> <span> Talk </span> </a><li class=mw-list-item id=pt-anoncontribs><a title="A list of edits made from this IP address [y]"accesskey=y href=/wiki/Special:MyContributions> <span> Contributions </span> </a><li class=mw-list-item id=pt-createaccount><a title="You are encouraged to create an account and log in; however, it is not mandatory"href=/w/index.php?title=Special:CreateAccount&returnto=SIP+trunking> <span> Create account </span> </a><li class=mw-list-item id=pt-login><a title="You're encouraged to log in; however, it's not mandatory. [o]"accesskey=o href=/w/index.php?title=Special:UserLogin&returnto=SIP+trunking> <span> Log in </span> </a></ul></div></nav><div id=left-navigation><nav class="mw-portlet mw-portlet-namespaces vector-menu vector-menu-tabs"aria-labelledby=p-namespaces-label id=p-namespaces role=navigation><h3 aria-label class=vector-menu-heading id=p-namespaces-label><span> Namespaces </span></h3><div class=vector-menu-content><ul class=vector-menu-content-list><li class="selected mw-list-item"id=ca-nstab-main><a title="View the content page [c]"accesskey=c href=/wiki/SIP_trunking> <span> Article </span> </a><li class=mw-list-item id=ca-talk><a title="Discuss improvements to the content page [t]"accesskey=t href=/wiki/Talk:SIP_trunking rel=discussion> <span> Talk </span> </a></ul></div></nav><nav class="mw-portlet mw-portlet-variants emptyPortlet vector-menu-dropdown-noicon vector-menu vector-menu-dropdown"aria-labelledby=p-variants-label id=p-variants role=navigation><input aria-haspopup=true aria-labelledby=p-variants-label class=vector-menu-checkbox data-event-name=ui.dropdown-p-variants id=p-variants-checkbox role=button type=checkbox><h3 aria-label="Change language variant"class=vector-menu-heading id=p-variants-label><span> Variants </span> <span class=vector-menu-checkbox-expanded> expanded </span> <span class=vector-menu-checkbox-collapsed> collapsed </span></h3><div class=vector-menu-content><ul class=vector-menu-content-list></ul></div></nav></div><div id=right-navigation><nav class="mw-portlet mw-portlet-views vector-menu vector-menu-tabs"aria-labelledby=p-views-label id=p-views role=navigation><h3 aria-label class=vector-menu-heading id=p-views-label><span> Views </span></h3><div class=vector-menu-content><ul class=vector-menu-content-list><li class="selected mw-list-item"id=ca-view><a href=/wiki/SIP_trunking> <span> Read </span> </a><li class=mw-list-item id=ca-edit><a title="Edit this page [e]"accesskey=e href=/w/index.php?title=SIP_trunking&action=edit> <span> Edit </span> </a><li class=mw-list-item id=ca-history><a title="Past revisions of this page [h]"accesskey=h href=/w/index.php?title=SIP_trunking&action=history> <span> View history </span> </a></ul></div></nav><nav class="mw-portlet mw-portlet-cactions emptyPortlet vector-menu-dropdown-noicon vector-menu vector-menu-dropdown"title="More options"aria-labelledby=p-cactions-label id=p-cactions role=navigation><input aria-haspopup=true aria-labelledby=p-cactions-label class=vector-menu-checkbox data-event-name=ui.dropdown-p-cactions id=p-cactions-checkbox role=button type=checkbox><h3 aria-label class=vector-menu-heading id=p-cactions-label><span> More </span> <span class=vector-menu-checkbox-expanded> expanded </span> <span class=vector-menu-checkbox-collapsed> collapsed </span></h3><div class=vector-menu-content><ul class=vector-menu-content-list></ul></div></nav><div class=vector-search-box id=p-search role=search><div><h3><label for=searchInput>Search</label></h3><form action=/w/index.php class=vector-search-box-form id=searchform><div class=vector-search-box-inner data-search-loc=header-navigation id=simpleSearch><input aria-label="Search Wikipedia"placeholder="Search Wikipedia"title="Search Wikipedia [f]"accesskey=f autocapitalize=sentences class=vector-search-box-input id=searchInput name=search type=search><input name=title type=hidden value=Special:Search><input class="searchButton mw-fallbackSearchButton"title="Search Wikipedia for this text"id=mw-searchButton name=fulltext type=submit value=Search><input title="Go to a page with this exact name if it exists"class=searchButton id=searchButton name=go type=submit value=Go></div></form></div></div></div></div><div id=mw-panel><div id=p-logo role=banner><a title="Visit the main page"class=mw-wiki-logo href=/wiki/Main_Page> </a></div><nav class="mw-portlet mw-portlet-navigation vector-menu vector-menu-portal portal"aria-labelledby=p-navigation-label id=p-navigation role=navigation><h3 aria-label class=vector-menu-heading id=p-navigation-label><span> Navigation </span></h3><div class=vector-menu-content><ul class=vector-menu-content-list><li class=mw-list-item id=n-mainpage-description><a title="Visit the main page [z]"accesskey=z href=/wiki/Main_Page> <span> Main page </span> </a><li class=mw-list-item id=n-contents><a title="Guides to browsing Wikipedia"href=/wiki/Wikipedia:Contents> <span> Contents </span> </a><li class=mw-list-item id=n-currentevents><a title="Articles related to current events"href=/wiki/Portal:Current_events> <span> Current events </span> </a><li class=mw-list-item id=n-randompage><a title="Visit a randomly selected article [x]"accesskey=x href=/wiki/Special:Random> <span> Random article </span> </a><li class=mw-list-item id=n-aboutsite><a title="Learn about Wikipedia and how it works"href=/wiki/Wikipedia:About> <span> About Wikipedia </span> </a><li class=mw-list-item id=n-contactpage><a title="How to contact Wikipedia"href=//en.wikipedia.org/wiki/Wikipedia:Contact_us> <span> Contact us </span> </a><li class=mw-list-item id=n-sitesupport><a title="Support us by donating to the Wikimedia Foundation"href=https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en> <span> Donate </span> </a></ul></div></nav><nav class="mw-portlet mw-portlet-interaction vector-menu vector-menu-portal portal"aria-labelledby=p-interaction-label id=p-interaction role=navigation><h3 aria-label class=vector-menu-heading id=p-interaction-label><span> Contribute </span></h3><div class=vector-menu-content><ul class=vector-menu-content-list><li class=mw-list-item id=n-help><a title="Guidance on how to use and edit Wikipedia"href=/wiki/Help:Contents> <span> Help </span> </a><li class=mw-list-item id=n-introduction><a title="Learn how to edit Wikipedia"href=/wiki/Help:Introduction> <span> Learn to edit </span> </a><li class=mw-list-item id=n-portal><a title="The hub for editors"href=/wiki/Wikipedia:Community_portal> <span> Community portal </span> </a><li class=mw-list-item id=n-recentchanges><a title="A list of recent changes to Wikipedia [r]"accesskey=r href=/wiki/Special:RecentChanges> <span> Recent changes </span> </a><li class=mw-list-item id=n-upload><a title="Add images or other media for use on Wikipedia"href=/wiki/Wikipedia:File_Upload_Wizard> <span> Upload file </span> </a></ul></div></nav><nav class="mw-portlet mw-portlet-tb vector-menu vector-menu-portal portal"aria-labelledby=p-tb-label id=p-tb role=navigation><h3 aria-label class=vector-menu-heading id=p-tb-label><span> Tools </span></h3><div class=vector-menu-content><ul class=vector-menu-content-list><li class=mw-list-item id=t-whatlinkshere><a title="List of all English Wikipedia pages containing links to this page [j]"accesskey=j href=/wiki/Special:WhatLinksHere/SIP_trunking> <span> What links here </span> </a><li class=mw-list-item id=t-recentchangeslinked><a title="Recent changes in pages linked from this page [k]"accesskey=k href=/wiki/Special:RecentChangesLinked/SIP_trunking rel=nofollow> <span> Related changes </span> </a><li class=mw-list-item id=t-upload><a title="Upload files [u]"accesskey=u href=/wiki/Wikipedia:File_Upload_Wizard> <span> Upload file </span> </a><li class=mw-list-item id=t-specialpages><a title="A list of all special pages [q]"accesskey=q href=/wiki/Special:SpecialPages> <span> Special pages </span> </a><li class=mw-list-item id=t-permalink><a title="Permanent link to this revision of this page"href=/w/index.php?title=SIP_trunking&oldid=1050555897> <span> Permanent link </span> </a><li class=mw-list-item id=t-info><a title="More information about this page"href=/w/index.php?title=SIP_trunking&action=info> <span> Page information </span> </a><li class=mw-list-item id=t-cite><a title="Information on how to cite this page"href=/w/index.php?title=Special:CiteThisPage&page=SIP_trunking&id=1050555897&wpFormIdentifier=titleform> <span> Cite this page </span> </a><li class=mw-list-item id=t-wikibase><a title="Structured data on this page hosted by Wikidata [g]"accesskey=g href=https://www.wikidata.org/wiki/Special:EntityPage/Q3943657> <span> Wikidata item </span> </a></ul></div></nav><nav class="mw-portlet mw-portlet-coll-print_export vector-menu vector-menu-portal portal"aria-labelledby=p-coll-print_export-label id=p-coll-print_export role=navigation><h3 aria-label class=vector-menu-heading id=p-coll-print_export-label><span> Print/export </span></h3><div class=vector-menu-content><ul class=vector-menu-content-list><li class=mw-list-item id=coll-download-as-rl><a title="Download this page as a PDF file"href=/w/index.php?title=Special:DownloadAsPdf&page=SIP_trunking&action=show-download-screen> <span> Download as PDF </span> </a><li class=mw-list-item id=t-print><a title="Printable version of this page [p]"accesskey=p href=/w/index.php?title=SIP_trunking&printable=yes> <span> Printable version </span> </a></ul></div></nav><nav class="mw-portlet mw-portlet-lang vector-menu vector-menu-portal portal"aria-labelledby=p-lang-label id=p-lang role=navigation><h3 aria-label class=vector-menu-heading id=p-lang-label><span> Languages </span></h3><div class=vector-menu-content><ul class=vector-menu-content-list><li class="interlanguage-link interwiki-ar mw-list-item"><a title="بروتوكول الحزمة البدائية (جذعي) – Arabic"class=interlanguage-link-target href=https://ar.wikipedia.org/wiki/%D8%A8%D8%B1%D9%88%D8%AA%D9%88%D9%83%D9%88%D9%84_%D8%A7%D9%84%D8%AD%D8%B2%D9%85%D8%A9_%D8%A7%D9%84%D8%A8%D8%AF%D8%A7%D8%A6%D9%8A%D8%A9_(%D8%AC%D8%B0%D8%B9%D9%8A) hreflang=ar lang=ar> <span> العربية </span> </a><li class="interlanguage-link interwiki-it mw-list-item"><a title="SIP Trunking – Italian"class=interlanguage-link-target href=https://it.wikipedia.org/wiki/SIP_Trunking hreflang=it lang=it> <span> Italiano </span> </a><li class="interlanguage-link interwiki-zh mw-list-item"><a title="SIP中继链接 – Chinese"class=interlanguage-link-target href=https://zh.wikipedia.org/wiki/SIP%E4%B8%AD%E7%BB%A7%E9%93%BE%E6%8E%A5 hreflang=zh lang=zh> <span> 中文 </span> </a></ul><div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"> <a title="Edit interlanguage links"class=wbc-editpage href=https://www.wikidata.org/wiki/Special:EntityPage/Q3943657#sitelinks-wikipedia> Edit links </a> </span></div></div></nav></div></div><footer class=mw-footer id=footer role=contentinfo><ul id=footer-info><li id=footer-info-lastmod>This page was last edited on 18 October 2021, at 15:02 <span class=anonymous-show>  (UTC) </span> .<li id=footer-info-copyright>Text is available under the <a href=//en.wikipedia.org/wiki/Wikipedia:Text_of_Creative_Commons_Attribution-ShareAlike_3.0_Unported_License rel=license> Creative Commons Attribution-ShareAlike License </a> <a href=//creativecommons.org/licenses/by-sa/3.0/ rel=license style=display:none;> </a> ; additional terms may apply. By using this site, you agree to the <a href=//foundation.wikimedia.org/wiki/Terms_of_Use> Terms of Use </a> and <a href=//foundation.wikimedia.org/wiki/Privacy_policy> Privacy Policy </a> . Wikipedia® is a registered trademark of the <a href=//www.wikimediafoundation.org/> Wikimedia Foundation, Inc. </a> , a non-profit organization.</ul><ul id=footer-places><li id=footer-places-privacy><a title="wmf:Privacy policy"class=extiw href=https://foundation.wikimedia.org/wiki/Privacy_policy> Privacy policy </a><li id=footer-places-about><a href=/wiki/Wikipedia:About title=Wikipedia:About> About Wikipedia </a><li id=footer-places-disclaimer><a title="Wikipedia:General disclaimer"href=/wiki/Wikipedia:General_disclaimer> Disclaimers </a><li id=footer-places-contact><a href=//en.wikipedia.org/wiki/Wikipedia:Contact_us> Contact Wikipedia </a><li id=footer-places-mobileview><a class="noprint stopMobileRedirectToggle"href=//en.m.wikipedia.org/w/index.php?title=SIP_trunking&mobileaction=toggle_view_mobile> Mobile view </a><li id=footer-places-developers><a href=https://www.mediawiki.org/wiki/Special:MyLanguage/How_to_contribute> Developers </a><li id=footer-places-statslink><a href=https://stats.wikimedia.org/#/en.wikipedia.org> Statistics </a><li id=footer-places-cookiestatement><a href=https://foundation.wikimedia.org/wiki/Cookie_statement> Cookie statement </a></ul><ul class=noprint id=footer-icons><li id=footer-copyrightico><a href=https://wikimediafoundation.org/> <img alt="Wikimedia Foundation"srcset="/static/images/footer/wikimedia-button-1.5x.png 1.5x, /static/images/footer/wikimedia-button-2x.png 2x"height=31 loading=lazy src=/static/images/footer/wikimedia-button.png width=88> </a><li id=footer-poweredbyico><a href=https://www.mediawiki.org/> <img alt="Powered by MediaWiki"srcset="/static/images/footer/poweredby_mediawiki_132x47.png 1.5x, /static/images/footer/poweredby_mediawiki_176x62.png 2x"height=31 loading=lazy src=/static/images/footer/poweredby_mediawiki_88x31.png width=88> </a></ul></footer><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgPageParseReport":{"limitreport":{"cputime":"0.286","walltime":"0.338","ppvisitednodes":{"value":539,"limit":1000000},"postexpandincludesize":{"value":14587,"limit":2097152},"templateargumentsize":{"value":672,"limit":2097152},"expansiondepth":{"value":12,"limit":40},"expensivefunctioncount":{"value":1,"limit":500},"unstrip-depth":{"value":1,"limit":20},"unstrip-size":{"value":29999,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00%  310.698      1 -total"," 64.62%  200.761      1 Template:Reflist"," 47.01%  146.061      9 Template:Cite_web"," 33.78%  104.942      1 Template:Cn"," 23.99%   74.546      1 Template:Fix"," 15.78%   49.036      2 Template:Category_handler","  4.81%   14.937      1 Template:Delink","  3.96%   12.309      1 Template:Cite_conference","  3.78%   11.734      1 Template:Fix/category","  1.09%    3.384      2 Template:Main_other"]},"scribunto":{"limitreport-timeusage":{"value":"0.164","limit":"10.000"},"limitreport-memusage":{"value":4429879,"limit":52428800}},"cachereport":{"origin":"mw1325","timestamp":"20211029020033","ttl":1814400,"transientcontent":false}}});});</script><script type=application/ld+json>
   {"@context":"https:\/\/schema.org","@type":"Article","name":"SIP trunking","url":"https:\/\/en.wikipedia.org\/wiki\/SIP_trunking","sameAs":"http:\/\/www.wikidata.org\/entity\/Q3943657","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q3943657","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2011-03-09T23:23:27Z","dateModified":"2021-10-18T15:02:05Z","headline":"VOIP and streaming media service based on the Internet via SIP protocol"}
  </script><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgBackendResponseTime":168,"wgHostname":"mw1369"});});</script>