{"id":13547,"date":"2024-07-01T11:24:00","date_gmt":"2024-07-01T10:24:00","guid":{"rendered":"https:\/\/www.gsma.com\/get-involved\/working-groups\/?post_type=gsma_theme_resources&#038;p=13547"},"modified":"2025-10-30T09:16:26","modified_gmt":"2025-10-30T09:16:26","slug":"ts-63-ue-wi-fi-calling-requirements-specification","status":"publish","type":"gsma_theme_resources","link":"https:\/\/www.gsma.com\/get-involved\/working-groups\/gsma_resources\/ts-63-ue-wi-fi-calling-requirements-specification\/","title":{"rendered":"TS.63 v1.0 UE Wi-Fi Calling Requirements Specification"},"content":{"rendered":"\n<p>The aim of this document is to define minimum Wi-Fi calling requirements for&nbsp;5G SA device.&nbsp;<\/p>\n\n\n\n<p>The main body of this document is applicable for the scenario where Wi-Fi calling services are deployed in 5G System (NG-RAN, 5GC, UE) or 4G System (E-UTRAN, EPC, UE) including interworking with 5G and 4G system.<\/p>\n\n\n\n<p>The present version of this PRD is restricted to profiling related to NG-RAN option SA NR (i.e. option 2) as defined in 3GPP TS 23.501 and legacy LTE as defined in 3GPP TS 23.401.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The aim of this document is to define minimum Wi-Fi calling requirements for&nbsp;5G SA device.&nbsp; The main body of this document is applicable for the scenario where Wi-Fi calling services are deployed in 5G System (NG-RAN, 5GC, UE) or 4G System (E-UTRAN, EPC, UE) including interworking with 5G and 4G system. The present version of [&hellip;]<\/p>\n","protected":false},"author":70,"featured_media":0,"template":"","meta":{"image":null,"json":{"gsma_resources_type":"Document","gsma_resources_thumb":"null","gsma_resources_file":"[13548]","gsma_resources_multi":null,"gsma_resources_wgr":null,"gsma_resources_video":"","gsma_resources_image":"null","gsma_resources_url":"","gsma_resources_date":"","gsma_resources_button":""}},"tags":[],"resource_categories":[2868,2114,2110],"algolia_discover_type":[2899],"class_list":["post-13547","gsma_theme_resources","type-gsma_theme_resources","status-publish","hentry","resource_categories-prd","resource_categories-terminal-steering-group","resource_categories-working-groups","algolia_discover_type-resource"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.3 (Yoast SEO v24.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>TS.63 v1.0 UE Wi-Fi Calling Requirements Specification - Working Groups<\/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\/get-involved\/working-groups\/gsma_resources\/ts-63-ue-wi-fi-calling-requirements-specification\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"TS.63 v1.0 UE Wi-Fi Calling Requirements Specification - Working Groups\" \/>\n<meta property=\"og:description\" content=\"The aim of this document is to define minimum Wi-Fi calling requirements for&nbsp;5G SA device.&nbsp; The main body of this document is applicable for the scenario where Wi-Fi calling services are deployed in 5G System (NG-RAN, 5GC, UE) or 4G System (E-UTRAN, EPC, UE) including interworking with 5G and 4G system. 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