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ETSI - European Telecommunication Standard Institute(ETSI) produces globally-applicable standards for information and telecommunication technologies (ICT) including land, mobile, radio, converged, broadcast and internet technologies.
Universal Mobile Telecommunications System (UMTS); LTE; Session Initiation Protocol (SIP) based user configuration; Stage 3 (3GPP TS 24.238 version 13.0.0 Release 13)
Standard published on 21.1.2016
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Session Initiation Protocol (SIP) based user configuration; Stage 3 (3GPP TS 24.238 version 14.0.0 Release 14)
Standard published on 31.3.2017
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Session Initiation Protocol (SIP) based user configuration; Stage 3 (3GPP TS 24.238 version 14.1.0 Release 14)
Standard published on 24.7.2017
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Session Initiation Protocol (SIP) based user configuration; Stage 3 (3GPP TS 24.238 version 14.2.0 Release 14)
Standard published on 5.10.2017
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Session Initiation Protocol (SIP) based user configuration; Stage 3 (3GPP TS 24.238 version 15.0.0 Release 15)
Standard published on 28.6.2018
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Session Initiation Protocol (SIP) based user configuration; Stage 3 (3GPP TS 24.238 version 16.0.0 Release 16)
Standard published on 28.7.2020
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Session Initiation Protocol (SIP) based user configuration; Stage 3 (3GPP TS 24.238 version 17.0.0 Release 17)
Standard published on 22.4.2022
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; 5G; Session Initiation Protocol (SIP) based user configuration; Stage 3 (3GPP TS 24.238 version 18.0.0 Release 18)
Standard published on 13.5.2024
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; 5G; Session Initiation Protocol (SIP) based user configuration; Stage 3 (3GPP TS 24.238 version 19.0.0 Release 19)
Standard published on 16.10.2025
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Session Initiation Protocol (SIP) based user configuration; Stage 3 (3GPP TS 24.238 version 8.0.0 Release 8)
Standard published on 20.1.2009
Selected format:Latest update: 2026-08-14 (Number of items: 2 293 479)
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