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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.
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Handover requirements between UTRAN and GERAN or other radio systems (3GPP TS 22.129 version 7.0.0 Release 7)
Standard published on 31.3.2006
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Handover requirements between UTRAN and GERAN or other radio systems (3GPP TS 22.129 version 8.0.0 Release 8)
Standard published on 24.1.2008
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Handover requirements between UTRAN and GERAN or other radio systems (3GPP TS 22.129 version 8.1.0 Release 8)
Standard published on 24.1.2008
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Handover requirements between UTRAN and GERAN or other radio systems (3GPP TS 22.129 version 9.0.0 Release 9)
Standard published on 21.1.2010
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Multicall; Service description; Stage 1 (3GPP TS 22.135 version 10.0.0 Release 10)
Standard published on 13.5.2011
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Multicall; Service description; Stage 1 (3GPP TS 22.135 version 11.0.0 Release 11)
Standard published on 23.10.2012
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Multicall; Service description; Stage 1 (3GPP TS 22.135 version 12.0.0 Release 12)
Standard published on 23.10.2014
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Multicall; Service description; Stage 1 (3GPP TS 22.135 version 13.0.0 Release 13)
Standard published on 29.1.2016
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Multicall; Service description; Stage 1 (3GPP TS 22.135 version 14.0.0 Release 14)
Standard published on 29.3.2017
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Multicall; Service description; Stage 1 (3GPP TS 22.135 version 15.0.0 Release 15)
Standard published on 13.7.2018
Selected format:Latest update: 2026-07-05 (Number of items: 2 286 116)
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