Universal Mobile Telecommunications System (UMTS); LTE; Combined Circuit Switched (CS) and IP Multimedia Subsystem (IMS) sessions; Stage 1 (3GPP TS 22.279 version 17.0.0 Release 17)

Standard published on 21.4.2022

Universal Mobile Telecommunications System (UMTS); LTE; Combined Circuit Switched (CS) and IP Multimedia Subsystem (IMS) sessions; Stage 1 (3GPP TS 22.279 version 18.0.1 Release 18)

Standard published on 13.5.2024

Universal Mobile Telecommunications System (UMTS); LTE; Combined Circuit Switched (CS) and IP Multimedia Subsystem (IMS) sessions; Stage 1 (3GPP TS 22.279 version 19.0.0 Release 19)

Standard published on 22.10.2025

Universal Mobile Telecommunications System (UMTS); Combinied Circuit Switched (CS) and IP Multimedia Subsystem (IMS) sessions; Stage 1 (3GPP TS 22.279 version 7.1.0 Release 7)

Standard published on 31.12.2005

Universal Mobile Telecommunications System (UMTS); LTE; Combined Circuit Switched (CS) and IP Multimedia Subsystem (IMS) sessions; Stage 1 (3GPP TS 22.279 version 8.0.0 Release 8)

Standard published on 19.1.2009

Universal Mobile Telecommunications System (UMTS); LTE; Combined Circuit Switched (CS) and IP Multimedia Subsystem (IMS) sessions; Stage 1 (3GPP TS 22.279 version 9.0.0 Release 9)

Standard published on 21.1.2010

LTE; Mission Critical Services Common Requirements (3GPP TS 22.280 version 14.3.1 Release 14)

Standard published on 3.7.2018

LTE; Mission Critical Services Common Requirements (3GPP TS 22.280 version 15.3.0 Release 15)

Standard published on 3.7.2018

LTE; 5G; Mission Critical Services Common Requirements (MCCoRe); Stage 1 (3GPP TS 22.280 version 16.8.0 Release 16)

Standard published on 11.8.2020

LTE; 5G; Mission Critical Services Common Requirements (MCCoRe); Stage 1 (3GPP TS 22.280 version 17.7.0 Release 17)

Standard published on 10.5.2022