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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); Multicall; Service description; Stage 1 (3GPP TS 22.135 version 4.2.0 Release 4)
Standard published on 19.12.2002
Selected format:Universal Mobile Telecommunications System (UMTS); Multicall; Service description; Stage 1 (3GPP TS 22.135 version 5.0.0 Release 5)
Standard published on 30.6.2002
Selected format:Universal Mobile Telecommunications System (UMTS); Multicall; Service description; Stage 1 (3GPP TS 22.135 version 6.0.0 Release 6)
Standard published on 7.1.2005
Selected format:Universal Mobile Telecommunications System (UMTS); Multicall; Service description; Stage 1 (3GPP TS 22.135 version 7.0.0 Release 7)
Standard published on 30.6.2007
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Multicall; Service description; Stage 1 (3GPP TS 22.135 version 8.0.0 Release 8)
Standard published on 16.1.2009
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; Multicall; Service description; Stage 1 (3GPP TS 22.135 version 9.0.0 Release 9)
Standard published on 21.1.2010
Selected format:5G; Integrated Sensing and Communication (3GPP TS 22.137 version 19.1.0 Release 19)
Standard published on 22.1.2026
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Multimedia Messaging Service (MMS); Stage 1 (3GPP TS 22.140 version 10.0.0 Release 10)
Standard published on 13.5.2011
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Multimedia Messaging Service (MMS); Stage 1 (3GPP TS 22.140 version 11.0.0 Release 11)
Standard published on 3.10.2012
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Multimedia Messaging Service (MMS); Stage 1 (3GPP TS 22.140 version 12.0.0 Release 12)
Standard published on 23.10.2014
Selected format:Latest update: 2026-07-05 (Number of items: 2 286 116)
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