3GPP 24-series — UE-to-Network Signalling Protocols – Stage 3

The technical specifications (TS) are displayed in blue, while the reports (TR) are shown in green. TS that have been discontinued in earlier releases are indicated with a light blue color. TR in the '9' range that have been stopped are highlighted in light green. TS or TR with a yellow background indicate those updated at the latest Q4-2024 Plenary Meetings. The new ones are displayed with a single red dotted overline.

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click here to see the new 24-series documents introduced at each 3GPP quarterly Plenary Meeting

24.0… 24.1… 24.2… 24.3… 24.4… 24.5… 24.6… 24.8… 24.9…

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TS 24.002	REL 3 → 18	GSM-UMTS PLMN Access Reference Configuration
TS 24.007	REL 3 → 19	Mobile Radio Interface Layer 3 – General Aspects
TS 24.008	REL 3 → 19	Mobile Radio Interface Layer 3 – Core Network Protocols
TS 24.010	REL 3 → 18	Mobile Radio Interface Layer 3 – Supplementary services
TS 24.011	REL 3 → 18	Point-to-Point SMS support on Mobile Radio Interface
TS 24.022	REL 3 → 18	RLP – Radio Link Protocol for Circuit Switched Bearer and Teleservices
TS 24.030	REL 3 → 18	LCS – Location Services Operations
TS 24.067	REL 3 → 18	eMLPP – enhanced Multi-Level Precedence and Pre-emption
TS 24.072	REL 3 → 18	CD – Call Deflection
TS 24.080	REL 3 → 19	Mobile Radio Layer 3 Supplementary Services – Formats and Coding
TS 24.081	REL 3 → 18	CLIP/CLIR/COLP/COLR – Line Identification
TS 24.082	REL 3 → 18	CF – Call Forwarding
TS 24.083	REL 3 → 18	CW/HOLD – Call Waiting and Call Hold
TS 24.084	REL 3 → 18	MPTY – MultiParty
TS 24.085	REL 3 → 18	CUG – Closed User Group
TS 24.086	REL 3 → 18	AoC – Advice of Charge
TS 24.087	REL 3 → 18	UUS – User-to-User Signalling
TS 24.088	REL 3 → 18	CB – Call Barring
TS 24.090	REL 3 → 18	USSD – Unstructured Supplementary Service Data
TS 24.091	REL 3 → 18	ECT – Explicit Call Transfer
TS 24.093	REL 3 → 18	CCBS – Completion of Calls to Busy Subscriber
TS 24.096	REL 3 → 18	CNAP – Calling Name Presentation


TS 24.103	REL 12 → 18	Telepresence using IMS
TS 24.105	REL 13 → 18	Application Specific Congestion Control for Data Communication (ACDC) Management Object (MO)
TS 24.109	REL 6 → 18	GAA – Bootstrapping interface (Ub) and NAF interface (Ua)
TS 24.116	REL 14 → 18	Stage 3 aspects of System Architecture enhancements for TV Services
TS 24.117	REL 14 → 18	TV Service configuration Management Object
TS 24.135	REL 3 → 18	MC – Multicall
TS 24.139	REL 11 → 18	3GPP System - Fixed Broadband Access Network Interworking
TS 24.141	REL 6 → 18	Presence Service using IMS
TS 24.147	REL 6 → 18	Conferencing using IMS
TS 24.161	REL 13 → 18	Network-Based IP Flow Mobility (NBIFOM)
TS 24.166	REL 9 → 18	IMS Conferencing Management Object
TS 24.167	REL 6 → 18	IMS Management Object
TS 24.171	REL 9 → 18	Control Plane LCS procedures in the EPS
TS 24.173	REL 7 → 18	MTSI – Multimedia Telephony Service for IMS
TS 24.174	REL 16 → 18	Support of multi-device and multi-identity in the IMS
TS 24.175	REL 16 → 18	Management Object (MO) for multi-device and multi-identity in the IMS
TS 24.182	REL 8 → 18	CAT – Customized Alerting Tones
TS 24.183	REL 9 → 18	IMS Customized Ringing Signal – Protocol specification
TS 24.186	REL 18 → 19	IMS Data Channel applications – Protocol specification
TS 24.193	REL 16 → 19	5G System – Access Traffic Steering, Switching and Splitting (ATSSS)
TS 24.196	REL 15 → 18	Enhanced Calling Name (eCNAM)


TS 24.206	REL 7	VCC – Voice Call Continuity
TS 24.216	REL 7 → 18	Communication Continuity Management Object
TS 24.228	REL 5	Signalling Flows for IMS Call Control based on SIP and SDP
TS 24.229	REL 5 → 19	IMS Call Control Protocol based on SIP and SDP
TS 24.234	REL 6 → 12	I-WLAN – WLAN UE to Network Protocols
TS 24.235	REL 10 → 12	I-WLAN Management Object
TS 24.237	REL 8 → 18	IMS Service Continuity
TS 24.238	REL 8 → 18	SIP-based User Configuration
TS 24.239	REL 8 → 18	IMS Flexible Alerting supplementary service
TS 24.244	REL 12 → 18	Wireless LAN Control Plane protocol for Trusted WLAN Access to EPC
TS 24.247	REL 6 → 18	Messaging Service using IMS
TS 24.250	REL 14 → 18	Protocol for Reliable Communication Service between UE and SCEF
TS 24.257	REL 17 → 19	Uncrewed Aerial System (UAS) Application Enabler (UAE) layer
TS 24.259	REL 8 → 18	PNM – Personal Network Management
TS 24.275	REL 14 → 19	Management Object (MO) for Basic Communication Part (BCP) of IMS Multimedia Telephony (MMTEL) Communication Service
TS 24.279	REL 7 → 18	CSICS – CS-IMS Combinational Services
TS 24.281	REL 14 → 18	MCVideo Signalling Control
TS 24.282	REL 14 → 19	MCData Signalling Control
TS 24.285	REL 8 → 18	Allowed CSG List Management Object
TS 24.286	REL 8 → 18	ICS Management Object
TS 24.292	REL 8 → 18	ICS – IMS Centralized Services
TS 24.294	REL 9 → 19	ICS protocol via I1 interface


TS 24.301	REL 8 → 19	Non-Access-Stratum (NAS) Protocol for EPS
TS 24.302	REL 8 → 18	Access to EPC via non-3GPP Access Networks
TS 24.303	REL 8 → 18	Mobility Management based on Dual-Stack Mobile IPv6
TS 24.304	REL 8 → 18	Mobility management based on Mobile IPv4 – User Equipment – Foreign Agent interface
TS 24.305	REL 7 → 18	Selective Disabling of 3GPP User Equipment Capabilities (SDoUE) Management Object
TS 24.312	REL 8 → 18	ANDSF Management Object
TS 24.315	REL 11 → 18	IMS Operator Determined Barring (ODB)
TS 24.322	REL 12 → 18	Tunnelling of IMS Services over Restrictive Access Networks
TS 24.323	REL 14 → 18	IMS Trace Management Object
TS 24.327	REL 8 → 12	Mobility between 3GPP I-WLAN and 3GPP Systems – GPRS and 3GPP I-WLAN aspects
TS 24.333	REL 12 → 18	ProSe Management Object
TS 24.334	REL 12 → 18	ProSe UE to ProSe Function protocol aspects
TS 24.337	REL 10 → 18	IMS inter-UE Transfer
TS 24.341	REL 7 → 18	Support of SMS over IP Networks
TS 24.368	REL 10 → 19	NAS Configuration Management Object
TS 24.371	REL 12 → 18	WebRTC Access to IMS
TS 24.379	REL 13 → 19	MCPTT Call Control
TS 24.380	REL 13 → 18	MCPTT Media Plane Control
TS 24.381	REL 13	MCPTT Group Management (replaced by TS 24.481)
TS 24.382	REL 13	MCPTT Identity Management (replaced by TS 24.482)
TS 24.383	REL 13	MCPTT MO (replaced by TS 24.483)
TS 24.384	REL 13	MCPTT Configuration Management (replaced by TS 24.484)
TS 24.385	REL 14 → 18	V2X services Management Object
TS 24.386	REL 14 → 18	UE to V2X control function
TS 24.390	REL 11 → 18	USSD using IMS
TS 24.391	REL 12 → 18	USSD using IMS Management Object


TS 24.403	REL 7	TISPAN – IP Multimedia Call Control Protocol based on SIP and SDP Stage 3 [3GPP TS 24.229 (Release 7), modified]
TS 24.404	REL 7	TISPAN; PSTN/ISDN simulation services: Communication Diversion (CDIV); Protocol specification
TS 24.405	REL 7	TISPAN; PSTN/ISDN simulation services: Conference (CONF); Protocol specification
TS 24.406	REL 7 → 8	TISPAN; PSTN/ISDN simulation services: Message Waiting Indication (MWI); Protocol specification
TS 24.407	REL 7 → 8	TISPAN; PSTN/ISDN simulation services: Originating Identification Presentation (OIP) and Originating Identification Restriction (OIR); Protocol specification
TS 24.408	REL 7	TISPAN; PSTN/ISDN simulation services: Terminating Identification Presentation (TIP) and Terminating Identification Restriction (TIR); Protocol specification
TS 24.410	REL 7 → 8	TISPAN; NGN Signalling Control Protocol; Communication HOLD (HOLD) PSTN/ISDN simulation services; Protocol specification
TS 24.411	REL 7 → 8	TISPAN; PSTN/ISDN simulation services: Anonymous Communication Rejection (ACR) and Communication Barring (CB); Protocol specification
TS 24.416	REL 7	TISPAN; PSTN/ISDN simulation services; Malicious Communication Identification (MCID); Protocol specification
TS 24.417	REL 14 → 18	Management Object (MO) for Originating Identification Presentation (OIP) and Originating Identification Restriction (OIR) using IMS
TS 24.423	REL 7 → 8	TISPAN; PSTN/ISDN simulation services; XML Configuration Access Protocol (XCAP) over the Ut interface for Manipulating NGN PSTN/ISDN Simulation Services
TS 24.424	REL 14 → 18	Management Object for XCAP over the Ut interface for Manipulating Supplementary Services
TS 24.428	REL 7	Common Basic Communication procedures
TS 24.429	REL 7	PSTN/ISDN simulation services: ECT
TS 24.430	REL 7 → 8	Presence Service Capability
TS 24.441	REL 7 → 8	Messaging service using IMS
TS 24.447	REL 8	NGN IMS Supplementary Services – AOC
TS 24.451	REL 8	Support of SMS and MMS over NGN IMS subsystem
TS 24.454	REL 8	PSTN/ISDN simulation services: CUG
TS 24.481	REL 13 → 18	Mission Critical Services (MCS) – Group Management
TS 24.482	REL 13 → 18	Mission Critical Services (MCS) – Identity Management
TS 24.483	REL 13 → 18	Mission Critical Services (MCS) – Management Object
TS 24.484	REL 13 → 19	Mission Critical Services (MCS) – Configuration Management
TS 24.486	REL 16 → 18	Vehicle-to-Everything (V2X) Application Enabler (VAE) layer


TS 24.501	REL 15 → 19	Non-Access-Stratum (NAS) Protocol for 5GS
TS 24.502	REL 15 → 19	Access to 5GS via non-3GPP Access Networks
TS 24.503	REL 8	TISPAN; IP Multimedia Call Control Protocol based on SIP and SDP Stage 3 [3GPP TS 24.229 (Release 7), modified]
TS 24.504	REL 8	TISPAN; PSTN/ISDN simulation services: Communication Diversion (CDIV); Protocol specification
TS 24.505	REL 8	TISPAN; PSTN/ISDN simulation services: Communication Diversion (CDIV); Protocol specification
TS 24.508	REL 8	TISPAN; PSTN/ISDN simulation services Terminating Identification Presentation (TIP) and Terminating Identification Restriction (TIR); Protocol specification
TS 24.514	REL 18 → 19	Ranging based services and Sidelink Positioning in 5GS
TS 24.516	REL 8	TISPAN; PSTN/ISDN simulation services; Malicious Communication Identification (MCID); Protocol specification
TS 24.519	REL 16 → 17	5G System (5GS); Time-Sensitive Networking (TSN) Application Function (AF) to Device-Side TSN Translator (DS-TT) and Network-Side TSN Translator (NW-TT) protocol aspects → content continues in TS 24.539 starting from Rel-17
TS 24.523	REL 12 → 18	Core and Enterprise NGN Interaction Scenarios
TS 24.524	REL 12 → 18	Hosted Enterprise Services
TS 24.525	REL 12 → 18	Business Trunking
TS 24.526	REL 15 → 19	User Equipment Policies for 5GS
TS 24.528	REL 8	TISPAN; Common Basic Communication procedures; Protocol specification
TS 24.529	REL 8	TISPAN; PSTN/ISDN simulation services: Explicit Communication Transfer (ECT); Protocol specification
TS 24.535	REL 16 → 18	5G System (5GS); Device-Side Time Sensitive Networking (TSN) Translator (DS-TT) to Network-Side TSN Translator (NW-TT) protocol aspects
TS 24.538	REL 17 → 18	Enabling MSGin5G Service; Protocol specification
TS 24.539	REL 17 → 19	5G System (5GS); Network to TSN translator (TT) protocol aspects
TS 24.542	REL 18	SEAL Notification Management
TS 24.543	REL 18 → 19	SEAL Data Delivery Management
TS 24.544	REL 16 → 18	Group Management - Service Enabler Architecture Layer for Verticals (SEAL)
TS 24.545	REL 16 → 19	Location Management - Service Enabler Architecture Layer for Verticals (SEAL)
TS 24.546	REL 16 → 18	Configuration Management - Service Enabler Architecture Layer for Verticals (SEAL)
TS 24.547	REL 16 → 18	Identity Management - Service Enabler Architecture Layer for Verticals (SEAL)
TS 24.548	REL 16 → 18	Network Resource Management - Service Enabler Architecture Layer for Verticals (SEAL)
TS 24.549	REL 17 → 18	SEAL - Network Slice Capability Enablement
TS 24.554	REL 17 → 19	ProSe in 5GS - Protocol aspects
TS 24.555	REL 17 → 19	ProSe in 5GS - UE Policies
TS 24.558	REL 17 → 19	Enabling Edge Applications; Protocol specification
TS 24.559	REL 18 → 19	Application Data Analytics Enablement Service (ADAES)
TS 24.571	REL 16 → 19	5GS Control Plane Location Services (LCS) procedures
TS 24.572	REL 18 → 19	5GS User plane Location Services (LCS) procedures
TS 24.575	REL 18	5G System; Multicast/Broadcast UE pre-configuration Management Object (MO)
TS 24.577	REL 18 → 19	Aircraft-to-Everything (A2X) services in 5GS - Protocol aspects
TS 24.578	REL 18	Aircraft-to-Everything (A2X) services in 5GS - UE Policies
TS 24.581	REL 14 → 18	MCVideo Media Plane Control
TS 24.582	REL 14 → 18	MCData Media Plane Control
TS 24.583	REL 18	Application Layer support for Personal IoT Network (PINAPP)
TS 24.587	REL 16 → 19	Vehicle-to-Everything (V2X) services in 5GS
TS 24.588	REL 16 → 18	Vehicle-to-Everything (V2X) services in 5GS; UE policies


TS 24.604	REL 8 → 18	Communication Diversion (CDIV) using IMS
TS 24.605	REL 8 → 18	Conference (CONF) using IMS
TS 24.606	REL 8 → 18	Message Waiting Indication (MWI) using IMS
TS 24.607	REL 8 → 18	Originating Identification Presentation (OIP) and Originating Identification Restriction (OIR) using IMS
TS 24.608	REL 8 → 18	Terminating Identification Presentation (TIP) and Terminating Identification Restriction (TIR) using IMS
TS 24.610	REL 8 → 18	Communication HOLD (HOLD) using IMS
TS 24.611	REL 8 → 18	Anonymous Communication Rejection (ACR) and Communication Barring (CB) using IMS
TS 24.615	REL 8 → 18	Communication Waiting (CW) using IMS
TS 24.616	REL 8 → 18	Malicious Communication Identification (MCID) using IMS
TS 24.623	REL 8 → 18	XCAP over the Ut interface for manipulating Supplementary Services
TS 24.628	REL 8 → 18	Common Basic Communication procedures using IMS using IMS
TS 24.629	REL 8 → 18	Explicit Communication Transfer (ECT) using IMS
TS 24.642	REL 8 → 18	Completion of Communications to Busy Subscriber (CCBS) and using IMS
TS 24.647	REL 8 → 18	Advice Of Charge (AOC) using IMS
TS 24.654	REL 8 → 18	Closed User Group (CUG) using IMS


TR 24.801	REL 8	3GPP System Architecture Evolution (SAE) – CT WG1 aspects
TR 24.802	REL 12	Indication of NNI Routeing Scenarios in SIP Requests in the IMS
TR 24.803	REL 12	Study on Telepresence using IMS
TR 24.811	REL 17	Study on the CT aspects of Support for Minimization of Service Interruption
TR 24.819	REL 7	Protocol Impact from Providing IMS Services via Fixed Broadband
TR 24.820	REL 11	3GPP System to Fixed Broadband Access Network Interworking – UE to Network protocols
TR 24.821	REL 17	Study on PLMN selection for Satellite Access
TR 24.826	REL 11	Impacts on Signalling between UE and Core Network from Energy Saving
TR 24.837	REL 10	IMS inter-UE Transfer enhancements
TR 24.841	REL 6	Presence Service based on SIP – Functional Models, Information Flows and Protocol Details
TR 24.879	REL 7	Combining CS Calls and IMS Sessions
TR 24.880	REL 8	Media Server Control using the IP Multimedia (IM) Core Network (CN) Subsystem
TR 24.883	REL 16	MC Systems Connection to LMR Systems
TR 24.890	REL 15 → 16	CT WG1 aspects of 5G System Phase 1


TR 24.930	REL 7 → 18	Signalling Flows for Session Setup in IMS based on SIP and SDP
TR 24.969	REL 12 → 18	Business Trunking – NGCN-NGN Interfaces Implementation Guide
TR 24.980	REL 13 → 16	Minimum Requirements for support of MCPTT Service over the Gm reference point