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 23.142
Value-added Services for SMS (VAS4SMS); Interface and signalling flow
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 23.146
Technical realization of facsimile Group 3 non-transparent
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 23.153
Out of band transcoder control; Stage 2
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 23.161
Network-Based IP Flow Mobility (NBIFOM); Stage 2
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 23.167
IP Multimedia Subsystem (IMS) emergency sessions
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 23.172
Technical realization of Circuit Switched (CS) multimedia service UDI/RDI fallback and service modification; Stage 2
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 23.180
Mission critical services support in the Isolated Operation for Public Safety (IOPS) mode of operation
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 23.202
Circuit switched data bearer services
Physical Layer
Rel-17TS5GCUpdated 2026-07-25
TS 23.203
Policy and charging control architecture
Physical Layer
Rel-17TS5GCUpdated 2026-07-25
TS 23.204
Support of Short Message Service (SMS) over generic 3GPP Internet Protocol (IP) access; Stage 2
Physical Layer
Rel-17TS5GCUpdated 2026-07-25
TS 23.205
Bearer-independent circuit-switched core network; Stage 2
Physical Layer
Rel-17TS5GCUpdated 2026-07-25
TS 23.207
End-to-end Quality of Service (QoS) concept and architecture
Physical Layer
Rel-17TS5GCUpdated 2026-07-25
TS 23.214
Architecture enhancements for control and user plane separation of EPC nodes
Physical Layer
Rel-17TS5GCUpdated 2026-07-25
TS 23.216
Single Radio Voice Call Continuity (SRVCC); Stage 2
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 23.218
IP Multimedia (IM) session handling; IM call model; Stage 2
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 23.221
Architectural requirements
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 23.222
Common API Framework for 3GPP Northbound APIs
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 23.226
Global text telephony (GTT); Stage 2
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 23.228
IP Multimedia Subsystem (IMS); Stage 2
Architecture
Rel-17TSIMSUpdated 2026-07-25
TS 23.231
SIP-I based circuit-switched core network; Stage 2
Architecture
Rel-17TS5GCUpdated 2026-07-25