Release Rel-17
5G NRExtends 5G NR to new device classes and satellite access.
Frozen 2022-03-231,408 specifications
Key features: RedCap (NR-Light), NR-NTN, multicast/broadcast, XR support
All SeriesSeries 21Series 22Series 23Series 24Series 26Series 27Series 28Series 29Series 31Series 32Series 33Series 34Series 35Series 36Series 37Series 38
TS 24.091
Explicit Call Transfer (ECT) supplementary service; Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.093
Completion of Calls to Busy Subscriber (CCBS); Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.096
Name Identification supplementary services; Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.103
Telepresence using the IP Multimedia (IM) Core Network (CN) Subsystem (IMS); Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.105
Application specific Congestion control for Data Communication (ACDC) Management Object (MO)
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.109
Bootstrapping interface (Ub) and network application function interface (Ua); Protocol details
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.116
Stage 3 aspects of system architecture enhancements for TV services
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.117
TV service configuration Management Object (MO)
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.135
Multicall supplementary service; Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.139
3GPP system - fixed broadband access network interworking; Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.141
Presence service using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.147
Conferencing using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.161
Network-Based IP Flow Mobility (NBIFOM); Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.166
3GPP IP Multimedia Subsystem (IMS) conferencing Management Object (MO)
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.167
3GPP IMS Management Object (MO); Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.171
Control Plane Location Services (LCS) procedures in the Evolved Packet System (EPS)
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.173
IMS Multimedia telephony communication service and supplementary services; Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.174
Support of multi-device and multi-identity in the IP Multimedia Subsystem (IMS); Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.175
Management Object (MO) for multi-device and multi-identity in the IP Multimedia Subsystem (IMS)
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.182
IP Multimedia Subsystem (IMS) Customized Alerting Tones (CAT); Protocol specification
Protocol
Rel-17TSIMSUpdated 2026-07-25