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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; IP Multimedia Subsystem (IMS) emergency sessions (3GPP TS 23.167 version 9.3.0 Release 9)
Standard published on 8.1.2010
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS) emergency sessions (3GPP TS 23.167 version 9.4.0 Release 9)
Standard published on 30.3.2010
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS) emergency sessions (3GPP TS 23.167 version 9.5.0 Release 9)
Standard published on 11.1.2011
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS) emergency sessions (3GPP TS 23.167 version 9.6.0 Release 9)
Standard published on 29.3.2011
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS) emergency sessions (3GPP TS 23.167 version 9.7.0 Release 9)
Standard published on 12.10.2011
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS) emergency sessions (3GPP TS 23.167 version 9.8.0 Release 9)
Standard published on 9.1.2012
Selected format:Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS) emergency sessions (3GPP TS 23.167 version 9.9.0 Release 9)
Standard published on 3.7.2012
Selected format:Universal Mobile Telecommunications System (UMTS); Functional stage 2 description of location services in UMTS (3G TS 23.171 version 3.0.0 Release 1999)
Standard published on 31.3.2000
Selected format:Universal Mobile Telecommunications System (UMTS); Functional stage 2 description of location services in UMTS (3G TS 23.171 version 3.1.0 Release 1999)
Standard published on 22.7.2000
Selected format:Universal Mobile Telecommunications System (UMTS); Location Services (LCS); Functional description; Stage 2 (UMTS) (3GPP TS 23.171 version 3.10.0 Release 1999)
Standard published on 30.6.2003
Selected format:Latest update: 2026-09-18 (Number of items: 2 301 509)
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