{"id":2544,"date":"2013-05-01T09:14:17","date_gmt":"2013-05-01T09:14:17","guid":{"rendered":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/?page_id=2544"},"modified":"2015-10-06T16:21:47","modified_gmt":"2015-10-06T16:21:47","slug":"implementation-guide","status":"publish","type":"page","link":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/volte-2-2\/implementation-guide\/","title":{"rendered":"Implementation Guide"},"content":{"rendered":"

Implementation Guide<\/h2>\n

N2020.01\u00a0–\u00a0VoLTE Service Description and\u00a0Implementation Guidelines (Version 1.0)<\/h3>\n

 <\/p>\n

Voice over Long Term Evolution (VoLTE) is the industry recognised solution for providing a rich multimedia HD Voice service over the LTE access technology. VoLTE utilises IMS technology and provides a common platform in which to provide an enriched calling experience by deploying Conversational Video and Rich Communication Services (RCS). 2014 has seen increased deployments of VoLTE in Hong Kong, Japan, Singapore, and the USA; with a large number of Operators projected to deploy in 2015.<\/p>\n

The GSMA have been actively engaged with the industry in regards to VoLTE deployments to gain further insight into trials, commercial deployments and live operations of the service. In this regard, a new version of the VoLTE Service Description and Implementation Guidelines has been published to include Conversational Video, Single Radio Voice Call Continuity (SRVCC) to provide seamless handover of voice calls from VoLTE to 2G\/3G access, and intra-LTE Handover.<\/p>\n

In addition, the \u00a0GSMA have also created an online IP Communications Issues Registry found here<\/a>. The registry contains the issues discovered during Interoperability testing (IOT) and Operators commercial deployments and provides guidelines for the VoLTE implementations in order to achieve seamless interoperability of VoLTE products and accelerate their time-to-market (TTM). The registry provides the capability to raise issues in an anonymous manner that are related to LTE, IMS and RCS Deployments, track issues that have been raised, allowing resolution of issues within GSMA technical documentation or liaising with external organisations for resolution.<\/p>\n

Note<\/strong> that this PRD was previously published as FCM.01 but was republished as N2020.01 following its transfer to the Network 2020 project within the GSMA.<\/p>\n

Download<\/span>\u00a0<\/em><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Implementation Guide N2020.01\u00a0–\u00a0VoLTE Service Description and\u00a0Implementation Guidelines (Version 1.0)   Voice over Long Term Evolution (VoLTE) is the industry recognised solution for providing a rich multimedia HD Voice service over the LTE access technology. VoLTE utilises IMS technology and provides a common platform in which to provide an enriched calling experience by deploying Conversational Video […]<\/p>\n","protected":false},"author":8,"featured_media":0,"parent":2415,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_oasis_is_in_workflow":0,"_oasis_original":0,"_oasis_task_priority":"","footnotes":""},"tags":[],"class_list":["post-2544","page","type-page","status-publish","hentry"],"yoast_head":"\nImplementation Guide - Networks<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/volte-2-2\/implementation-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Implementation Guide\" \/>\n<meta property=\"og:description\" content=\"Implementation Guide N2020.01\u00a0–\u00a0VoLTE Service Description and\u00a0Implementation Guidelines (Version 1.0)   Voice over Long Term Evolution (VoLTE) is the industry recognised solution for providing a rich multimedia HD Voice service over the LTE access technology. VoLTE utilises IMS technology and provides a common platform in which to provide an enriched calling experience by deploying Conversational Video […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/volte-2-2\/implementation-guide\/\" \/>\n<meta property=\"og:site_name\" content=\"Networks\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/gsma\/\" \/>\n<meta property=\"article:modified_time\" content=\"2015-10-06T16:21:47+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/wp-content\/uploads\/2019\/04\/GSMA_logo_colour_web.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@GSMA\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Implementation Guide - Networks","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/volte-2-2\/implementation-guide\/","og_locale":"en_GB","og_type":"article","og_title":"Implementation Guide","og_description":"Implementation Guide N2020.01\u00a0–\u00a0VoLTE Service Description and\u00a0Implementation Guidelines (Version 1.0)   Voice over Long Term Evolution (VoLTE) is the industry recognised solution for providing a rich multimedia HD Voice service over the LTE access technology. VoLTE utilises IMS technology and provides a common platform in which to provide an enriched calling experience by deploying Conversational Video […]","og_url":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/volte-2-2\/implementation-guide\/","og_site_name":"Networks","article_publisher":"https:\/\/www.facebook.com\/gsma\/","article_modified_time":"2015-10-06T16:21:47+00:00","og_image":[{"width":1000,"height":1000,"url":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/wp-content\/uploads\/2019\/04\/GSMA_logo_colour_web.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_site":"@GSMA","twitter_misc":{"Estimated reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/volte-2-2\/implementation-guide\/","url":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/volte-2-2\/implementation-guide\/","name":"Implementation Guide - Networks","isPartOf":{"@id":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/#website"},"datePublished":"2013-05-01T09:14:17+00:00","dateModified":"2015-10-06T16:21:47+00:00","breadcrumb":{"@id":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/volte-2-2\/implementation-guide\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/volte-2-2\/implementation-guide\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/volte-2-2\/implementation-guide\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/"},{"@type":"ListItem","position":2,"name":"VoLTE","item":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/volte-2-2\/"},{"@type":"ListItem","position":3,"name":"Implementation Guide"}]},{"@type":"WebSite","@id":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/#website","url":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/","name":"Networks","description":"","publisher":{"@id":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/#organization","name":"GSMA","url":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/#\/schema\/logo\/image\/","url":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/wp-content\/uploads\/2025\/01\/GSMA-Logo-Red-RGB_square.jpg","contentUrl":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/wp-content\/uploads\/2025\/01\/GSMA-Logo-Red-RGB_square.jpg","width":600,"height":600,"caption":"GSMA"},"image":{"@id":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/gsma\/","https:\/\/x.com\/GSMA","https:\/\/www.instagram.com\/gsmaonline\/","https:\/\/www.linkedin.com\/company\/gsma","https:\/\/www.youtube.com\/user\/GSMAOnline","https:\/\/en.wikipedia.org\/wiki\/GSMA"]}]}},"_links":{"self":[{"href":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/wp-json\/wp\/v2\/pages\/2544","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/wp-json\/wp\/v2\/comments?post=2544"}],"version-history":[{"count":22,"href":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/wp-json\/wp\/v2\/pages\/2544\/revisions"}],"predecessor-version":[{"id":7055,"href":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/wp-json\/wp\/v2\/pages\/2544\/revisions\/7055"}],"up":[{"embeddable":true,"href":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/wp-json\/wp\/v2\/pages\/2415"}],"wp:attachment":[{"href":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/wp-json\/wp\/v2\/media?parent=2544"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/networks\/wp-json\/wp\/v2\/tags?post=2544"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}