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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; All-IP network (AIPN) feasibility study (3GPP TR 22.978 version 17.0.0 Release 17)
Standard published on 21.4.2022
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; All-IP network (AIPN) feasibility study (3GPP TR 22.978 version 18.0.1 Release 18)
Standard published on 13.5.2024
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; All-IP network (AIPN) feasibility study (3GPP TR 22.978 version 19.0.0 Release 19)
Standard published on 22.10.2025
Selected format:Universal Mobile Telecommunications System (UMTS); All-IP network (AIPN) feasibility study (3GPP TR 22.978 version 7.1.0 Release 7)
Standard published on 28.7.2008
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; All-IP network (AIPN) feasibility study (3GPP TR 22.978 version 8.0.0 Release 8)
Standard published on 27.1.2009
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; All-IP network (AIPN) feasibility study (3GPP TR 22.978 version 9.0.0 Release 9)
Standard published on 4.2.2010
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Feasibility study on combined Circuit Switched (CS) calls and IP Multimedia Subsystem (IMS) sessions (3GPP TR 22.979 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; Feasibility study on combined Circuit Switched (CS) calls and IP Multimedia Subsystem (IMS) sessions (3GPP TR 22.979 version 11.0.0 Release 11)
Standard published on 4.10.2012
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Feasibility study on combined Circuit Switched (CS) calls and IP Multimedia Subsystem (IMS) sessions (3GPP TR 22.979 version 12.0.0 Release 12)
Standard published on 23.10.2014
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Feasibility study on combined Circuit Switched (CS) calls and IP Multimedia Subsystem (IMS) sessions (3GPP TR 22.979 version 13.0.0 Release 13)
Standard published on 22.1.2016
Selected format:Latest update: 2026-09-11 (Number of items: 2 300 165)
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