TS · Series 23 · C4
Basic call handling; Technical realization
Under change controlRel-4
TS · Series 23 · SMG12
General UMTS architecture
Withdrawn under change controlUMTS
TS · Series 23 · WG not indexed
Functions related to Mobile Station (MS) in idle mode and group receive mode
Withdrawn under change controlRelease 1999
TS · Series 23 · S3
3G Security; Fraud Information Gathering System (FIGS); Technical realization; Stage 2
Under change controlRel-4
TS · Series 23 · S2
Universal Geographical Area Description (GAD)
Under change controlRel-4
TS · Series 23 · C1
High Speed Circuit Switched Data (HSCSD); Stage 2
Under change controlRel-4
TS · Series 23 · S3
Immediate Service Termination (IST); Stage 2
Under change controlRel-4
TS · Series 23 · C1
Alphabets and language-specific information
Under change controlRel-4
TR · Series 23 · C1
Interface Protocols for the connection of Short Message Service Centers (SMSCs) to Short Message Entities (SMEs)
Under change controlRel-4
TS · Series 23 · C1
Technical realization of the Short Message Service (SMS)
Under change controlRel-4
TS · Series 23 · C1
Technical realization of Cell Broadcast Service (CBS)
Under change controlRel-4
TS · Series 23 · C1
Compression algorithm for text messaging services
Under change controlRel-4
TS · Series 23 · WG not indexed
Support of Videotex
Withdrawn under change controlRelease 1999
TS · Series 23 · WG not indexed
Support of Teletex
Withdrawn under change controlRelease 1999
TS · Series 23 · N3
Technical Realization of Facsimile Group 3 Service - transparent
Withdrawn under change controlRelease 1999
TS · Series 23 · WG not indexed
Technical realisation of facsimile Group 3 service - non-transparent
Withdrawn under change controlRelease 1999
TS · Series 23 · C6
Security mechanisms for the (U)SIM application toolkit; Stage 2
Under change controlRel-4
TS · Series 23 · S4
Tandem Free Operation (TFO); Service description; Stage 2
Under change controlRel-4
TS · Series 23 · N3
Shared Interworking Functions (SIWF); Stage 2
Withdrawn under change controlRelease 1999
TS · Series 23 · S2
Mobile Execution Environment (MExE); Functional description; Stage 2
Under change controlRel-4
TS · Series 23 · WG not indexed
UMTS Network principles
Withdrawn before change controlUMTS
TS · Series 23 · S2
General Packet Radio Service (GPRS); Service description; Stage 2
Under change controlRel-4
TS · Series 23 · C4
Support of Mobile Number Portability (MNP); Technical realization; Stage 2
Under change controlRel-4
TS · Series 23 · C4
enhanced Multi-Level Precedence and Pre-emption Service (eMLPP); Stage 2
Under change controlRel-4
TS · Series 23 · N1
Voice Broadcast service (VBS); Stage 2
Withdrawn under change controlRelease 1999
TS · Series 23 · WG not indexed
Routeing of calls to/from Public Data Networks (PDN) and the GSM Public Land Mobile Network (PLMN)
Withdrawn under change controlRelease 1999
TS · Series 23 · WG not indexed
Location Services (LCS); Functional description; Stage 2
Withdrawn under change controlRelease 1999
TS · Series 23 · C4
Call Deflection (CD) supplementary service; Stage 2
Under change controlRel-4
TS · Series 23 · N4
Support of Localised Service Area (SoLSA); Stage 2
Withdrawn under change controlRel-4
TS · Series 23 · C4
Customised Applications for Mobile network Enhanced Logic (CAMEL) Phase 4; Stage 2
Under change controlRel-4
TS · Series 23 · C4
Support of Optimal Routeing (SOR); Technical realization
Under change controlRel-4
TS · Series 23 · C4
Line Identification supplementary services; Stage 2
Under change controlRel-4
TS · Series 23 · C4
Call Forwarding (CF) supplementary services; Stage 2
Under change controlRel-4
TS · Series 23 · C4
Call Waiting (CW) and Call Hold (HOLD) supplementary services; Stage 2
Under change controlRel-4
TS · Series 23 · C4
Multi Party (MPTY) supplementary service; Stage 2
Under change controlRel-4
TS · Series 23 · C4
Closed User Group (CUG) supplementary service; Stage 2
Under change controlRel-4
TS · Series 23 · C4
Advice of Charge (AoC) supplementary services; Stage 2
Under change controlRel-4
TS · Series 23 · C4
User-to-User Signalling (UUS) supplementary service; Stage 2
Under change controlRel-4
TS · Series 23 · C4
Call Barring (CB) Supplementary Services; Stage 2
Under change controlRel-4
TS · Series 23 · C4
Unstructured Supplementary Service Data (USSD); Stage 2
Under change controlRel-4
TS · Series 23 · C4
Explicit Call Transfer (ECT) supplementary service; Stage 2
Under change controlRel-4
TS · Series 23 · C4
Technical realization of Completion of Calls to Busy Subscriber (CCBS); Stage 2
Under change controlRel-4
TS · Series 23 · C4
Follow-Me (FM); Stage 2
Under change controlRel-4
TS · Series 23 · C4
Name identification supplementary services; Stage 2
Under change controlRel-4
TS · Series 23 · C4
Multiple Subscriber Profile (MSP) (Phase 2); Stage 2
Under change controlRel-4
TS · Series 23 · S2
General Universal Mobile Telecommunications System (UMTS) architecture
Under change controlRel-4
TS · Series 23 · S2
Quality of Service (QoS) concept and architecture
Under change controlRel-4
TS · Series 23 · C1
Mobile radio interface layer 3 specification, core network protocols; Stage 2
Under change controlRel-4
TS · Series 23 · WG not indexed
UMTS Access Stratum; Services and Functions
Withdrawn under change controlUMTS
TS · Series 23 · S2
Universal Mobile Telecommunications System (UMTS) access stratum; Services and functions
Under change controlRel-4
TS · Series 23 · C4
Super-Charger technical realization; Stage 2
Under change controlRel-4
TS · Series 23 · C4
Gateway Location Register (GLR); Stage 2
Under change controlRel-4
TS · Series 23 · S2
Architectural requirements for Release 1999
Under change controlRel-5
TS · Series 23 · C1
Non-Access-Stratum (NAS) functions related to Mobile Station (MS) in idle mode
Under change controlRel-4
TS · Series 23 · S2
Overall high level functionality and architecture impacts of flow based charging; Stage 2
Under change controlRel-6
TS · Series 23 · S2
Virtual Home Environment (VHE) / Open Service Access (OSA)
Under change controlRel-4
TS · Series 23 · C4
Multicall supplementary service; Stage 2
Under change controlRel-4
TS · Series 23 · S2
Integrated Sensing and Communication; Stage 2
Under change controlRel-20
TS · Series 23 · S6
Use of sensing results for Vertical Applications
DraftRel-20
TS · Series 23 · S2
3GPP system - fixed broadband access network interworking; Stage 2
Under change controlRel-11
TS · Series 23 · CP
Multimedia Messaging Service (MMS); Functional description; Stage 2
Under change controlRel-4
TS · Series 23 · S2
Presence service; Architecture and functional description
Under change controlRel-6
TS · Series 23 · C4
Value-added Services for SMS (VAS4SMS); Interface and signalling flow
Under change controlRel-8
TS · Series 23 · C3
Technical realization of facsimile Group 3 non-transparent
Under change controlRel-4
TS · Series 23 · C4
Out of band transcoder control; Stage 2
Under change controlRel-4
TS · Series 23 · S2
Network-Based IP Flow Mobility (NBIFOM); Stage 2
Under change controlRel-13
TS · Series 23 · S2
IP Multimedia Subsystem (IMS) emergency sessions
Under change controlRel-7
TS · Series 23 · S2
reerved for: Earthquake and Tsunami Warning System Specification (ETWS)
Withdrawn before change controlRel-8
TS · Series 23 · S2
Location Services (LCS); Functional description; Stage 2 (UMTS)
Under change controlRel-4
TS · Series 23 · C3
Technical realization of Circuit Switched (CS) multimedia service UDI/RDI fallback and service modification; Stage 2
Under change controlRel-5
TS · Series 23 · S2
Push service; stage 2
Withdrawn before change controlRel-5
TS · Series 23 · N2
customized Applications for Mobile network Enhanced Logic (CAMEL) - IP Multimedia System (IMS) interworking; Stage 2
Withdrawn before change controlRel-5
TS · Series 23 · S6
Functional architecture and information flows to support mission critical communication services; Stage 2
Under change controlRel-13
TS · Series 23 · S6
Mission critical services support in the Isolated Operation for Public Safety (IOPS) mode of operation
Under change controlRel-17
TS · Series 23 · S2
reserved for: Architecture of IMS based Customized Alerting Tone (CAT)
Withdrawn under change controlRel-9
TS · Series 23 · S2
Provision of User Equipment Specific Behaviour Information (UESBI) to network entities
Under change controlRel-5
TS · Series 23 · CP
Open Service Access (OSA); Stage 2
Under change controlRel-6
TS · Series 23 · C3
Circuit switched data bearer services
Under change controlRel-6
TS · Series 23 · S2
Policy and charging control architecture
Under change controlRel-7
TS · Series 23 · S2
Support of Short Message Service (SMS) over generic 3GPP Internet Protocol (IP) access; Stage 2
Under change controlRel-7
TS · Series 23 · C4
Bearer-independent circuit-switched core network; Stage 2
Under change controlRel-4
TS · Series 23 · S2
Voice Call Continuity (VCC) between Circuit Switched (CS) and IP Multimedia Subsystem (IMS); Stage 2
Under change controlRel-7
TS · Series 23 · S2
End-to-end Quality of Service (QoS) concept and architecture
Under change controlRel-4
TS · Series 23 · S2
Policy control over Gq interface
Withdrawn before change controlRel-6
TS · Series 23 · S2
Evolution of the GSM platform towards UMTS
Withdrawn before change controlUMTS
TS · Series 23 · S2
Architecture enhancements for control and user plane separation of EPC nodes
Under change controlRel-14
TS · Series 23 · S2
Single Radio Voice Call Continuity (SRVCC); Stage 2
Under change controlRel-8
TS · Series 23 · C1
IP Multimedia (IM) session handling; IM call model; Stage 2
Under change controlRel-5
TS · Series 23 · S2
Architectural requirements
Under change controlRel-4
TS · Series 23 · S6
Common API Framework for 3GPP Northbound APIs
Under change controlRel-15
TS · Series 23 · S2
Global text telephony (GTT); Stage 2
Under change controlRel-5
TS · Series 23 · S2
Application and user interaction in the User Equipment (UE); Principles and specific requirements
Under change controlRel-4
TS · Series 23 · S2
IP Multimedia Subsystem (IMS); Stage 2
Under change controlRel-5
TS · Series 23 · C4
SIP-I based circuit-switched core network; Stage 2
Under change controlRel-8
TS · Series 23 · S2
IMS aspects of architecture for Home Node B (HNB)
Withdrawn before change controlRel-9
TS · Series 23 · S2
3GPP system to Wireless Local Area Network (WLAN) interworking; System description
Under change controlRel-6
TS · Series 23 · S2
Intra-domain connection of Radio Access Network (RAN) nodes to multiple Core Network (CN) nodes
Under change controlRel-5
TS · Series 23 · S2
IP Multimedia Subsystem (IMS) Service Continuity; Stage 2
Under change controlRel-8
TS · Series 23 · S2
3GPP Generic User Profile (GUP); Architecture (Stage 2)
Under change controlRel-5
TS · Series 23 · N4
3GPP Generic User Profile (GUP); Stage 2; Data Description Method (DDM)
Withdrawn under change controlRel-5
TS · Series 23 · S2
Multimedia Broadcast/Multicast Service (MBMS); Architecture and functional description
Under change controlRel-6
TS · Series 23 · S2
Architectural enhancements for 5G multicast-broadcast services
Under change controlRel-17
TS · Series 23 · S2
Network sharing; Architecture and functional description
Under change controlRel-6
TS · Series 23 · S6
Application layer support for Uncrewed Aerial System (UAS); Functional architecture and information flows;
Under change controlRel-17
TS · Series 23 · S2
Support of Uncrewed Aerial Systems (UAS) connectivity, identification and tracking; Stage 2
Under change controlRel-17
TS · Series 23 · S2
reserved for: All-IP network (AIPN); Stage 2
Withdrawn before change controlRel-7
TS · Series 23 · C1
Personal Network Management (PNM); Procedures and information flows; Stage 2
Under change controlRel-7
TS · Series 23 · S2
IP flow mobility and seamless Wireless Local Area Network (WLAN) offload; Stage 2
Under change controlRel-10
TS · Series 23 · S2
Functional stage 2 description of Location Services (LCS)
Under change controlRel-4
TS · Series 23 · S2
Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2
Under change controlRel-8
TS · Series 23 · S2
5G System (5GS) Location Services (LCS); Stage 2
Under change controlRel-16
TS · Series 23 · C4
Customised Applications for Mobile network Enhanced Logic (CAMEL) Phase 4; Stage 2; IM CN Interworking
Under change controlRel-5
TS · Series 23 · S2
Combining Circuit Switched (CS) and IP Multimedia Subsystem (IMS) services; Stage 2
Under change controlRel-7
TS · Series 23 · S6
Common functional architecture to support mission critical services; Stage 2
Under change controlRel-14
TS · Series 23 · S6
Functional architecture and information flows to support Mission Critical Video (MCVideo); Stage 2
Under change controlRel-14
TS · Series 23 · S6
Functional architecture and information flows to support Mission Critical Data (MCData); Stage 2
Under change controlRel-14
TS · Series 23 · S6
Mission Critical Communication Interworking with Land Mobile Radio Systems
Under change controlRel-15
TS · Series 23 · C4
Local Call Local Switch (LCLS); Stage 2
Under change controlRel-10
TS · Series 23 · S2
Architecture enhancements for V2X services
Under change controlRel-14
TS · Series 23 · S6
Application layer support for Vehicle-to-Everything (V2X) services; Functional architecture and information flows
Under change controlRel-16
TS · Series 23 · S2
Architecture enhancements for 5G System (5GS) to support Vehicle-to-Everything (V2X) services
Under change controlRel-16
TS · Series 23 · S2
Architecture enhancements for 5G System (5GS) to support network data analytics services
Under change controlRel-16
TS · Series 23 · S6
Mission Critical services over 5G System; Stage 2
Under change controlRel-17
TS · Series 23 · S2
IP Multimedia Subsystem (IMS) centralized services; Stage 2
Under change controlRel-8
TS · Series 23 · S2
Proximity-based services (ProSe); Stage 2
Under change controlRel-12
TS · Series 23 · S2
Proximity based Services (ProSe) in the 5G System (5GS)
Under change controlRel-17
TS · Series 23 · WG not indexed
Iu principles
Withdrawn before change controlUMTS
TS · Series 23 · S2
Wireless and wireline convergence access support for the 5G System (5GS)
Under change controlRel-16
TS · Series 23 · S2
Mobility between 3GPP-Wireless Local Area Network (WLAN) interworking and 3GPP systems
Under change controlRel-8
TS · Series 23 · C4
Multimedia Resource Function Controller (MRFC) - Multimedia Resource Function Processor (MRFP) Mp interface: Procedures descriptions
Under change controlRel-7
TS · Series 23 · C4
IP Multimedia Subsystem (IMS) Application Level Gateway (IMS-ALG) - IMS Access Gateway (IMS-AGW) interface: Procedures descriptions
Under change controlRel-9
TS · Series 23 · C4
User Data Convergence (UDC); Technical realization and information flows; Stage 2
Under change controlRel-9
TS · Series 23 · S2
(reserved for:" IP Multimedia Subsystem (IMS) messaging; Stage 2")
Withdrawn before change controlRel-6
TS · Series 23 · S6
Functional architecture and information flows for Energy Saving Enablement Service
Under change controlRel-20
TS · Series 23 · S4
System architecture for application energy consumption information collection and reporting; Stage 2
Under change controlRel-20
TS · Series 23 · S2
Service requirements for Machine-Type Communications (MTC); Stage 2
Withdrawn before change controlRel-11
TS · Series 23 · S2
Architecture support for Ambient power-enabled Internet of Things; Stage 2
Under change controlRel-19
TS · Series 23 · S6
Application enablement for Ambient IoT services
Under change controlRel-20
TS · Series 23 · C1
AIoT network identification selection for AIoT devices
DraftRel-20
TS · Series 23 · S6
Functional architecture and information flows to support Mission Critical Push To Talk (MCPTT); Stage 2
Under change controlRel-14
TS · Series 23 · C4
IMS Restoration Procedures
Under change controlRel-8
TS · Series 23 · S6
Application enablement aspects for MMTel
Under change controlRel-19
TS · Series 23 · S2
General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access
Under change controlRel-8
TS · Series 23 · S2
Architecture enhancements for non-3GPP accesses
Under change controlRel-8
TS · Series 23 · S2
TISPAN; IP Multimedia Subsystem (IMS); Stage 2 description [3GPP TS 23.228 v7.2.0, modified]
Under change controlRel-7
TS · Series 23 · WG not indexed
UMTS Network Aspects; Relationship with UPT
Withdrawn before change controlUMTS
TS · Series 23 · S2
TISPAN; IP Multimedia Subsystem (IMS); Functional architecture
Under change controlRel-7
TS · Series 23 · S6
Service Enabler Architecture Layer for Verticals (SEAL); Data Delivery enabler for vertical applications
Under change controlRel-18
TS · Series 23 · S6
Service Enabler Architecture Layer for Verticals (SEAL); Functional architecture and information flows
Under change controlRel-16
TS · Series 23 · S6
Procedures for Network Slice Capability Exposure for Application Layer Enablement Service
Under change controlRel-18
TS · Series 23 · S6
Functional architecture and information flows for Application Data Analytics Enablement Service
Under change controlRel-18
TS · Series 23 · S6
Service Enabler Architecture Layer for Verticals (SEAL); Spatial map and Spatial anchors;
Under change controlRel-19
TS · Series 23 · S6
Service Enabler Architecture Layer for Verticals (SEAL); Digital assets
Under change controlRel-19
TS · Series 23 · S2
Group Communication System Enablers for LTE (GCSE_LTE); Stage 2
Under change controlRel-12
TS · Series 23 · S6
Technical Specification Group Services and System Aspects; UE MBMS APIs for Mission Critical Services;
Under change controlRel-16
TS · Series 23 · S6
Functional architecture and information flows for AIML Enablement Service
Under change controlRel-19
TS · Series 23 · S2
System architecture for the 5G System (5GS)
Under change controlRel-15
TS · Series 23 · S2
Procedures for the 5G System (5GS)
Under change controlRel-15
TS · Series 23 · S2
Policy and charging control framework for the 5G System (5GS); Stage 2
Under change controlRel-15
TS · Series 23 · S2
TISPAN; IP Multimedia Subsystem (IMS); Stage 2 description [3GPP TS 23.228 Release 7, modified]
Under change controlRel-8
TS · Series 23 · S2
TISPAN; Voice Call Continuity (VCC); Stage 2 [3GPP TS 23.206 Release 7, modified]
Under change controlRel-8
TS · Series 23 · S2
TISPAN; Presence Service; Architecture and functional description [Endorsement of 3GPP TS 23.141 and OMA-AD-Presence_SIMPLE-V1_0]
Under change controlRel-7
TS · Series 23 · S2
TISPAN; NGN Architecture to support emergency communication from citizen to authority [Endorsed document 3GPP TS 23.167, Release 7]
Under change controlRel-7
TS · Series 23 · WG not indexed
UMTS Network Aspects; IN and B-ISDN concepts in a UMTS environment
Withdrawn before change controlUMTS
TS · Series 23 · S2
TISPAN; XML Document Management; Architecture and functional description [OMA-AD-XDM-V1_0-20051006-C modified]
Under change controlRel-7
TS · Series 23 · S2
TISPAN; IP Multimedia Subsystem (IMS); Functional architecture
Under change controlRel-8
TS · Series 23 · S2
Telecommunications and Internet converged Services and Protocols for Advanced Networks (TISPAN); Support of Short Message Service (SMS) over NGN IMS subsystem; Stage 2; [Endorsement of 3GPP TS 23.204 Release 7]
Under change controlRel-8
TS · Series 23 · C4
5G System; Restoration procedures
Under change controlRel-15
TS · Series 23 · C4
5G System: Technical realization of Service Based Short Message Service; Stage 2
Under change controlRel-17
TS · Series 23 · S6
Application layer support for Personal IoT Network
Under change controlRel-18
TS · Series 23 · S6
Application layer support for Factories of the Future (FF)
DraftRel-18
TS · Series 23 · S2
5G System Enhancements for Edge Computing; Stage 2
Under change controlRel-17
TS · Series 23 · S6
Application architecture for MSGin5G Service; Stage 2
Under change controlRel-17
TS · Series 23 · S6
Architecture for enabling Edge Applications
Under change controlRel-17
TS · Series 23 · S2
Architectural Enhancements to support Ranging based services and Sidelink Positioning
Under change controlRel-18
TS · Series 23 · WG not indexed
UMTS Network Aspects; UMTS data organization
Withdrawn before change controlUMTS
TS · Series 23 · S2
TISPAN; XML Document Management; Architecture and functional description [OMA-AD-XDM-V1_0-20051006-C modified]
Under change controlRel-8
TS · Series 23 · C4
User data interworking, coexistence and migration; Stage 2
Under change controlRel-16
TS · Series 23 · S2
Architecture enhancements to facilitate communications with packet data networks and applications
Under change controlRel-11
TR · Series 23 · S6
Study on application enablement for Satellite access enabled 5G Services
Under change controlRel-19
TR · Series 23 · S6
Study of application enablement for satellite access enabled 5G services Phase 4
DraftRel-20
TR · Series 23 · S2
Study on system enhancement for Proximity based Services (ProSe) in the 5G System (5GS); Phase 3
Under change controlRel-19
TR · Series 23 · S2
Study on Core Network Enhanced Support for Artificial Intelligence (AI) / Machine Learning (ML); Phase 2
Under change controlRel-20
TR · Series 23 · S2
Study on architecture enhancements for vehicle-mounted relays
Under change controlRel-18
TR · Series 23 · S2
Study on architecture enhancements for vehicle-mounted relays - Phase 2
Under change controlRel-19
TR · Series 23 · S2
Study on enhanced support of Non-Public Networks (NPN)
Under change controlRel-17
TR · Series 23 · S2
Study on enhanced support of Non-Public Networks; Phase 2
Under change controlRel-18
TR · Series 23 · S6
Study on Mission critical services support in the Isolated Operation for Public Safety (IOPS) mode of operations
Under change controlRel-19
TR · Series 23 · C1
Study on enhanced IP Multimedia Subsystem (IMS) to 5GC integration Phase 2; CT WG1 aspects
Under change controlRel-17
TR · Series 23 · C3
Study on enhanced IP Multimedia Subsystem (IMS) to 5GC integration Phase 2; CT WG3 aspects
Under change controlRel-17
TR · Series 23 · C4
Study on enhanced IP Multimedia Subsystem (IMS) to 5GC integration Phase 2; CT WG4 aspects
Under change controlRel-17
TR · Series 23 · S2
Study on Architecture support of Ambient power-enabled Internet of Things
Under change controlRel-19
TR · Series 23 · S2
Study on Integrated Sensing and Communication; Stage 2
Under change controlRel-20
TR · Series 23 · S6
Study on Use of sensing results for Vertical Applications
Under change controlRel-20
TR · Series 23 · S2
Study on support for Wireless and Wireline Convergence for the 5G System (5GS) (5WWC); Phase 2
Withdrawn before change controlRel-17
TR · Series 23 · S2
Study on Wireless and Wireline Convergence for the 5G System (5GS) (5WWC); Phase 2
Under change controlRel-18
TR · Series 23 · S2
Study on system enabler for service function chaining
Under change controlRel-18
TR · Series 23 · S2
Study on Integration of satellite components in the 5G architecture; Phase 4
Under change controlRel-20
TR · Series 23 · S2
Study on enhanced support of Industrial Internet of Things (IIoT) in the 5G System (5GS)
Under change controlRel-17
TR · Series 23 · S6
Study on Application enablement architecture for mobile metaverse services
Under change controlRel-19