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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; Presence service; Architecture and functional description (3GPP TS 23.141 version 15.0.0 Release 15)
Standard published on 28.6.2018
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Presence service; Architecture and functional description (3GPP TS 23.141 version 16.0.0 Release 16)
Standard published on 24.7.2020
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Presence service; Architecture and functional description (3GPP TS 23.141 version 17.0.0 Release 17)
Standard published on 5.4.2022
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Presence service; Architecture and functional description (3GPP TS 23.141 version 18.0.0 Release 18)
Standard published on 24.4.2024
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Presence service; Architecture and functional description (3GPP TS 23.141 version 19.0.0 Release 19)
Standard published on 14.10.2025
Selected format:Universal Mobile Telecommunications System (UMTS); Presence service; Architecture and functional description; Stage 2 (3GPP TS 23.141 version 6.10.0 Release 6)
Standard published on 8.10.2007
Selected format:Universal Mobile Telecommunications System (UMTS); Presence service; Architecture and functional description; Stage 2 (3GPP TS 23.141 version 6.7.0 Release 6)
Standard published on 31.1.2005
Selected format:Universal Mobile Telecommunications System (UMTS); Presence service; Architecture and functional description; Stage 2 (3GPP TS 23.141 version 6.8.0 Release 6)
Standard published on 30.6.2005
Selected format:Universal Mobile Telecommunications System (UMTS); Presence service; Architecture and functional description; Stage 2 (3GPP TS 23.141 version 6.9.0 Release 6)
Standard published on 31.12.2005
Selected format:Universal Mobile Telecommunications System (UMTS); Presence service; Architecture and functional description; Stage 2 (3GPP TS 23.141 version 7.1.0 Release 7)
Standard published on 31.12.2005
Selected format:Latest update: 2026-09-17 (Number of items: 2 301 467)
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