ETSI TS 123 228-2006 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS); Stage 2 3GPP TS 23.228 version 7.5.0 Release 7
2021ETSI TS 123 228-2021 Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (V16.6.0; 3GPP TS 23.228 version 16.6.0 Release 16)
2017ETSI TS 123 228-2017 Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (V14.5.0; 3GPP TS 23.228 version 14.5.0 Release 14)
2016ETSI TS 123 228-2016 Digital cellular telecommunications system (Phase 2+); (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (V13.5.0; 3GPP TS 23.228 version 13.5.0 Release 13)
2015ETSI TS 123 228-2015 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (V12.9.0; 3GPP TS 23.228 version 12.9.0 Release 12)
2012ETSI TS 123 228-2012 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 V10.7.0; 3GPP TS 23.228 version 10.7.0 Release 10
2010ETSI TS 123 228-2010 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 V8.12.0; 3GPP TS 23.228 version 8.12.0 Release 8
2009ETSI TS 123 228-2009 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 V8.9.0; 3GPP TS 23.228 version 8.9.0 Release 8
2008ETSI TS 123 228-2008 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS); Stage 2 V8.5.0; 3GPP TS 23.228 version 8.5.0 Release 8
2007ETSI TS 123 228-2007 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS); Stage 2 V7.8.0; 3GPP TS 23.228 version 7.8.0 Release 7
2006ETSI TS 123 228-2006 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS); Stage 2 3GPP TS 23.228 version 7.5.0 Release 7
2005ETSI TS 123 228-2005 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS); Stage 2 3GPP TS 23.228 Version 5.14.0 Release 5
2004ETSI TS 123 228-2004 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS); Stage 2 3GPP TS 23.228 Version 5.12.0 Release 5
2003ETSI TS 123 228-2003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS); Stage 2 3GPP TS 23.228 Version 5.10.0 Release 5
2002ETSI TS 123 228-2002 Digital Cellular Telecommunications System (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS); Stage 2 3GPP TS 23.228 Version 5.6.0 Release 5