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 24.183
IP Multimedia Subsystem (IMS) Customized Ringing Signal (CRS); Protocol specification
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.193
5G System;Access Traffic Steering, Switching and Splitting (ATSSS); Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.196
Enhanced Calling Name (eCNAM)
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.216
Communication Continuity Management Object (MO)
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.229
IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.237
IP Multimedia (IM) Core Network (CN) subsystem IP Multimedia Subsystem (IMS) service continuity; Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.238
Session Initiation Protocol (SIP) based user configuration; Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.239
Flexible Alerting (FA) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.244
Wireless LAN control plane protocol for trusted WLAN access to EPC; Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.247
Messaging service using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.250
Protocol for Reliable Data Service; Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.257
Uncrewed Aerial System (UAS) Application Enabler (UAE) layer; Protocol aspects; Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.259
Personal Network Management (PNM); Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.275
Management Object (MO) for Basic Communication Part (BCP) of IMS Multimedia Telephony (MMTEL) communication service
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.279
Combining Circuit Switched (CS) and IP Multimedia Subsystem (IMS) services; Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.281
Mission Critical Video (MCVideo) signalling control; Protocol specification
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.282
Mission Critical Data (MCData) signalling control; Protocol specification
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.285
Allowed Closed Subscriber Group (CSG) list; Management Object (MO)
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.286
IP Multimedia (IM) Core Network (CN) subsystem Centralized Services (ICS); Management Object (MO)
Protocol
Rel-17TSIMSUpdated 2026-07-25
TS 24.292
IP Multimedia (IM) Core Network (CN) subsystem Centralized Services (ICS); Stage 3
Protocol
Rel-17TSIMSUpdated 2026-07-25