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3GPP 23-series — Technical Realization – Stage 2


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  Q4-2023  Plenary Meetings.  The new ones are displayed with a single red dotted overline.
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click  here to see the new 23-series documents introduced at each 3GPP quarterly Plenary Meeting

23.0…   23.1…   23.2…   23.3…   23.4…   23.5…   23.6…   23.7…   23.8…   23.9…

TS 23.002
REL  3 → 17
Network Architecture

TS 23.003
REL  3 → 18
Numbering, Addressing and Identification

TS 23.007
REL  3 → 18
Restoration Procedures

TS 23.008
REL  3 → 17
Organization of Subscriber Data

TS 23.009
REL  3 → 17
Handover Procedures

TS 23.011
REL  3 → 17
Technical Realization of Supplementary Services

TS 23.012
REL  3 → 17
Location Management Procedures

TS 23.014
REL  3 → 17
Support of DTMF Signalling

TS 23.015
REL  3 → 18
ODB — Operator Determined Call Barring

TS 23.016
REL  3 → 17
Subscriber Data Management

TS 23.018
REL  3 → 17
Basic Call Handling

TS 23.031
REL  3 → 17
FIGS — Fraud Information Gathering System

TS 23.032
REL  3 → 18
GAD — Universal Geographical Area Description

TS 23.034
REL  3 → 17
HSCSD — High Speed Circuit Switched Data

TS 23.035
REL  3 → 17
IST — Immediate Service Termination

TS 23.038
REL  3 → 18
Alphabets and language-specific information

TR 23.039
REL  3 → 5
Interface Protocols for the Connection of SMSCs to SMEs

TS 23.040
REL  3 → 17
SMS — Short Message Service

TS 23.041
REL  3 → 18
CBS — Cell Broadcast Service

TS 23.042
REL  3 → 17
Compression algorithm for text messaging services

TS 23.048
REL  4 → 5
USAT/SAT — Security mechanisms

TS 23.053
REL  4 → 17
TFO — Tandem Free Operation

TS 23.057
REL  3 → 17
MExE — Mobile Execution Environment

TS 23.060
REL  3 → 17
GPRS — General Packet Radio Service

TS 23.066
REL  3 → 17
MNP — Mobile Number Portability

TS 23.067
REL  3 → 17
eMLPP — enhanced Multi-Level Precedence and Pre-emption

TS 23.072
REL  3 → 17
CD — Call Deflection

TS 23.078
REL  3 → 17
CAMEL Phase X

TS 23.079
REL  3 → 17
SOR — Support of Optimal Routeing

TS 23.081
REL  3 → 17
CLIP/CLIR/COLP/COLR — Line Identification

TS 23.082
REL  3 → 17
CF — Call Forwarding

TS 23.083
REL  3 → 17
CW/HOLD — Call Waiting and Call Hold

TS 23.084
REL  3 → 17
MPTY — MultiParty

TS 23.085
REL  3 → 17
CUG — Closed User Group

TS 23.086
REL  3 → 17
AoC — Advice of Charge

TS 23.087
REL  3 → 17
UUS — User-to-User Signalling

TS 23.088
REL  3 → 17
CB — Call Barring

TS 23.090
REL  3 → 17
USSD — Unstructured Supplementary Service Data

TS 23.091
REL  3 → 17
ECT — Explicit Call Transfer

TS 23.093
REL  3 → 17
CCBS — Completion of Calls to Busy Subscriber

TS 23.094
REL  3 → 17
FM — Follow-Me

TS 23.096
REL  3 → 17
CNAP — Calling Name Presentation

TS 23.097
REL  3 → 17
MSP — Multiple Subscriber Profile

Up

TS 23.101
REL  3 → 17
General UMTS Architecture

TS 23.107
REL  3 → 17
QoS Concept and Architecture

TS 23.108
REL  3 → 17
Mobile Radio Interface Layer 3 – Core Network Protocols

TS 23.110
REL  3 → 17
UMTS Access Stratum – Services and Functions

TS 23.116
REL  3 → 17
Super-Charger

TS 23.119
REL  3 → 17
GLR — Gateway Location Register

TS 23.121
REL  3
Architectural Requirements for Release 99

TS 23.122
REL  3 → 18
NAS Functions related to MS in Idle Mode

TS 23.125
REL  6
Overall high level functionality and architecture impacts of flow based charging
replaced by  TS 23.203  from Rel‑7

TS 23.127
REL  3 → 5
Virtual Home Environment (VHE) / Open Service Access (OSA)
replaced by  TS 23.198  from Rel‑6

TS 23.135
REL  3 → 17
Multicall

TS 23.139
REL  11 → 17
3GPP system / Fixed Broadband Access Network Interworking

TS 23.140
REL  3 → 6
MMS — Multimedia Messaging Service

TS 23.141
REL  6 → 17
Presence — Architecture and Functional Description

TS 23.142
REL  9 → 17
Value-added Services for SMS – Interface and Signalling Flow

TS 23.146
REL  4 → 17
Facsimile Group 3 non-Transparent

TS 23.153
REL  4 → 17
OoBTC — Out of Band Transcoder Control

TS 23.161
REL  13 → 17
Network-Based IP Flow Mobility

TS 23.167
REL  7 → 18
IMS Emergency Sessions

TS 23.171
REL  3
LCS — Location Services
replaced by  TS 23.271  from Rel‑4

TS 23.172
REL  5 → 17
SCUDIF — Service Change and UDI Fallback

TS 23.179
REL  13
Functional Architecture and Information Flows to support Mission Critical Communication Services
replaced by  TS 23.379  from Rel‑14

TS 23.180
REL  17
MCS support in the IOPS mode of operation

TS 23.195
REL  5
UESBI — User Equipment Specific Behaviour Information

TS 23.198
REL  6 → 9
OSA — Open Service Access

Up

TS 23.202
REL  6 → 17
Circuit Switched Data Bearer Services

TS 23.203
REL  7 → 17
PCC — Policy and Charging Control architecture

TS 23.204
REL  7 → 17
Support of SMS over Generic 3GPP IP Access

TS 23.205
REL  4 → 17
BICC — Bearer-Independent CS Core network

TS 23.206
REL  7
VCC — Voice Call Continuity

TS 23.207
REL  5 → 17
E2E QoS Concept and Architecture

TS 23.214
REL  14 → 17
Architecture enhancements for Control and User Plane Separation of EPC Nodes

TS 23.216
REL  8 → 18
SRVCC — Single Radio Voice Call Continuity

TS 23.218
REL  5 → 17
IP Multimedia Call Model

TS 23.221
REL  4 → 17
Architectural Requirements

TS 23.222
REL  15 → 19
Common API Framework for 3GPP Northbound APIs

TS 23.226
REL  5 → 17
GTT — Global Text Telephony

TS 23.227
REL  4 → 5
Application and User Interaction in the UE

TS 23.228
REL  5 → 18
IMS — IP Multimedia Subsystem

TS 23.231
REL  8 → 17
SIP-I based CS Core Network

TS 23.234
REL  6 → 13
I-WLAN — 3GPP-WLAN Interworking

TS 23.236
REL  5 → 17
Intra-domain Connection of RAN Nodes to Multiple CN Nodes

TS 23.237
REL  8 → 17
IMS Service Continuity

TS 23.240
REL  6 → 17
GUP — Generic User Profile

TS 23.246
REL  6 → 17
MBMS — Architecture and Functional Description

TS 23.247
REL  17 → 18
Architectural enhancements for 5G Multicast-Broadcast

TS 23.251
REL  6 → 17
Network Sharing — Architecture and Functional Description

TS 23.255
REL  17 → 19
Application layer support for Uncrewed Aerial System (UAS) –
Functional architecture and information flows

TS 23.256
REL  17 → 18
Support of Uncrewed Aerial Systems (UAS) connectivity, identification and tracking

TS 23.259
REL  8 → 17
PNM — Personal Network Management

TS 23.261
REL  10 → 17
IP Flow Mobility and Seamless WLAN Offload

TS 23.271
REL  4 → 17
LCS — Location Services

TS 23.272
REL  8 → 17
CS Fallback in EPS

TS 23.273
REL  16 → 18
5G System – Location Services (LCS)

TS 23.278
REL  5 → 17
CAMEL Phase 4 IMS Interworking

TS 23.279
REL  7 → 17
CSICS — CS-IMS Combinational Services

TS 23.280
REL  14 → 19
Common Functional Architecture to support Mission Critical Services

TS 23.281
REL  14 → 19
Functional Architecture and Information Flows to support Mission Critical Video (MCVideo)

TS 23.282
REL  14 → 19
Functional Architecture and Information Flows to support Mission Critical Data (MCData)

TS 23.283
REL  15 → 18
Mission Critical Communication Interworking with Land Mobile Radio Systems

TS 23.284
REL  10 → 17
LCLS — Local Call Local Switch

TS 23.285
REL  14 → 17
Architecture enhancements for V2X Services

TS 23.286
REL  16 → 18
Application Layer Support for V2X Services – Functional Architecture and Information Flows

TS 23.287
REL  16 → 18
Architecture enhancements for 5G System to support Vehicle-to-Everything (V2X) Services

TS 23.288
REL  16 → 18
Architecture enhancements for 5G System to support Network Data Analytics Services

TS 23.289
REL  17 → 19
Mission Critical services over 5G System

TS 23.292
REL  8 → 17
ICS — IMS Centralized Services

Up

TS 23.303
REL  12 → 17
ProSe — Proximity-based Services

TS 23.304
REL  17 → 18
Proximity based Services (ProSe) in the 5G System (5GS)

TS 23.316
REL  16 → 18
Wireless and Wireline Convergence Access support for the 5G System

TS 23.327
REL  8 → 13
Mobility between I-WLAN and 3GPP systems

TS 23.333
REL  7 → 17
MRFC-MRFP Mp Interface

TS 23.334
REL  9 → 17
IMS‑ALG — IMS‑AGW Iq Interface

TS 23.335
REL  9 → 17
User Data Convergence (UDC) – Technical Realization and Information Flows

TS 23.379
REL  14 → 19
Functional Architecture and Information Flows to support Mission Critical Push To Talk (MCPTT)

TS 23.380
REL  8 → 17
IMS Restoration Procedures

Up

TS 23.401
REL  8 → 18
GPRS Enhancements for E-UTRAN Access

TS 23.402
REL  8 → 18
Architecture Enhancements for non-3GPP Accesses

TS 23.406
REL  7
TISPAN — IMS Stage 2 Description

TS 23.417
REL  7
TISPAN — IMS Functional Architecture

TS 23.433
REL  18 → 19
Service Enabler Architecture Layer (SEAL) for Verticals – Data Delivery enabler for vertical applications

TS 23.434
REL  16 → 19
Service Enabler Architecture Layer (SEAL) for Verticals – Functional Architecture and Information Flows

TS 23.435
REL  18 → 19
Procedures for Network Slice Capability Exposure for Application Layer Enablement Service

TS 23.436
REL  18
Functional architecture and information flows for Application Data Analytics Enablement Service

TS 23.468
REL  12 → 17
GCSE_LTE — Group Communication System Enablers for LTE

TS 23.479
REL  16 → 17
UE MBMS APIs for Mission Critical Services

Up

TS 23.501
REL  15 → 18
5G System – System Architecture

TS 23.502
REL  15 → 18
5G System – Procedures

TS 23.503
REL  15 → 18
5G System – PCC Framework

TS 23.506
REL  8
TISPAN — IMS Stage 2 Description

TS 23.507
REL  8
TISPAN — VCC

TS 23.508
REL  7 → 8
TISPAN — Presence Service

TS 23.509
REL  7 → 8
TISPAN — NGN Architecture to support Emergency Communication

TS 23.511
REL  7 → 8
TISPAN — XML Document Management

TS 23.517
REL  8
TISPAN — IMS Functional Architecture

TS 23.521
REL  8
TISPAN — Support of SMS over NGN IMS Subsystem

TS 23.527
REL  15 → 18
5G System – Restoration Procedures

TS 23.540
REL  17 → 18
5G System – Technical realization of Service Based Short Message Service

TS 23.542
REL  18
Application Layer support for Personal IoT Network

TS 23.548
REL  17 → 18
5G System enhancements for Edge Computing

TS 23.554
REL  17 → 19
Application architecture for MSGin5G Service

TS 23.558
REL  17 → 19
Architecture for enabling Edge Applications (EA)

TS 23.586
REL  18
Architectural enhancements to support Ranging based services and Sidelink Positioning

Up

TS 23.611
REL  8
TISPAN — XML Document Management

TS 23.632
REL  16 → 18
User Data Interworking, Coexistence and Migration

TS 23.682
REL  11 → 18
Architecture Enhancements to Facilitate Communications with PDNs and Applications

Up

TR 23.700-05
REL  18
Study on architecture enhancements for Vehicle-mounted Relays

TR 23.700-07
REL  17
Study on enhanced support of Non-Public Networks (NPN)

TR 23.700-08
REL  18
Study on enhanced support of Non-Public Networks; Phase 2

TR 23.700-10
REL  17
Study on enhanced IMS to 5GC integration Phase 2; CT WG1 aspects

TR 23.700-11
REL  17
Study on enhanced IMS to 5GC integration Phase 2; CT WG3 aspects

TR 23.700-12
REL  17
Study on enhanced IMS to 5GC integration Phase 2; CT WG4 aspects

TR 23.700-17
REL  18
Study on Wireless and Wireline Convergence for the 5G System (5GS) (5WWC); Phase 2

TR 23.700-18
REL  18
Study on system enabler for Service Function Chaining

TR 23.700-20
REL  17
Study on enhanced support of Industrial Internet of Things (IIoT) in the 5GS

TR 23.700-24
REL  17
Study on support of the 5G MSG (Message) Service

TR 23.700-25
REL  18
Study on Timing Resiliency and TSC and URLLC enhancements

TR 23.700-27
REL  18
Study on support of Satellite backhauling in 5GS

TR 23.700-28
REL  18
Study on integration of Satellite components in the 5G architecture – Phase 2

TR 23.700-33
REL  18
Study on System enhancement for ProSe in the 5GS – Phase 2

TR 23.700-34
REL  18
Study on SEAL data delivery enabler for Vertical applications

TR 23.700-36
REL  18
Study on Application Data Analytics Enablement Service

TR 23.700-38
REL  18
Study on sharing of administrative configuration between interconnected MC service systems

TR 23.700-40
REL  17
Study on enhancement of Network Slicing; Phase 2

TR 23.700-41
REL  18
Study on enhancement of Network Slicing – Phase 3

TR 23.700-46
REL  18
Study on 5GS Deterministic Networking (DetNet) interworking

TR 23.700-47
REL  18
Study on architectural enhancements for 5G multicast-broadcast services – Phase 2

TR 23.700-48
REL  18
5G System enhancements for Edge Computing – Phase 2

TR 23.700-53
REL  18
Study on Access Traffic Steering, Switching and Splitting support in the 5GS architecture – Phase 3

TR 23.700-55
REL  18
Study on enhanced Application Architecture for UAS applications

TR 23.700-58
REL  18
Study of further architecture enhancements for Uncrewed Aerial Systems and Urban Air Mobility

TR 23.700-60
REL  18
Study on XR (Extended Reality) and Media services

TR 23.700-61
REL  18
Study on Seamless UE Context Recovery

TR 23.700-62
REL  18
Study on UPF enhancement for Exposure And SBA

TR 23.700-64
REL  18
Study on enhancements to Application Layer support for V2X services – Phase 2

TR 23.700-68
REL  18
Study on Support of reduced capability NR devices – Phase 2

TR 23.700-71
REL  18
Study on enhancement to the 5GC LoCation Services (LCS) – Phase 3

TR 23.700-74
REL  18
Study on generic group management, exposure and communication enhancements

TR 23.700-76
REL  18
Study on ad hoc Group communication support for Mission Critical Services

TR 23.700-78
REL  18
Study on Application layer support for Personal IoT and Residential Networks

TR 23.700-79
REL  18
Study of Gateway UE function for Mission Critical (MC) Communications

TR 23.700-80
REL  18
Study on 5G system support for AI/ML-based services

TR 23.700-81
REL  18
Study on Enablers for Network Automation for 5G – Phase 3

TR 23.700-85
REL  18
Study on enhancement of 5G User Equipment (UE) policy

TR 23.700-86
REL  18
Study on Architecture Enhancement to support Ranging based services and sidelink positioning

TR 23.700-87
REL  18
Study on system architecture enhancement for next generation real time communication

TR 23.700-88
REL  18
Study on architecture enhancements for Personal IoT Network (PIN)

TR 23.700-89
REL  18
Study on 5G AM Policy

TR 23.700-90
REL  18
Study on interconnection and migration aspects for Railways

TR 23.700-91
REL  17
Study on enablers for network automation for the 5GS; Phase 2

TR 23.700-93
REL  17
Study on Access Traffic Steering, Switch and Splitting support in the 5GS architecture; Phase 2

TR 23.700-95
REL  18
Study on Application enablement aspects for subscriber-aware Northbound API access

TR 23.700-96
REL  18
Study on 5G-enabled fused location service capability

TR 23.700-97
REL  18
Study on Application Capability Exposure for IoT Platforms

TR 23.700-98
REL  18
Study on enhanced Application Architecture for enabling Edge Applications

TR 23.700-99
REL  18
Study on Network Slice Capability Exposure for Application Layer Enablement

TR 23.701
REL  12
Study on Web Real Time Communication (WebRTC) Access to IMS

TR 23.702
REL  14
Study on 3GPP PS Data Off

TR 23.703
REL  12
Study on Architecture enhancements to support Proximity Services (ProSe)

TR 23.704
REL  13
Study on CS/PS Coordination in Shared Network

TR 23.705
REL  13
Study on System enhancements for User Plane Congestion Management

TR 23.706
REL  13
Study on enhancements to WebRTC Access to IMS

TR 23.707
REL  13
Architecture enhancements for Dedicated Core Networks

TR 23.708
REL  13
Architecture enhancements for Service Capability Exposure

TR 23.709
REL  13
Study on Optimizations to support High Latency Communications

TR 23.710
REL  14
Study on Improvement of Awareness of User Location

TR 23.711
REL  14
Enhancements of Dedicated Core Networks Selection Mechanism

TR 23.712
REL  13
Study on Warning Status Reporting

TR 23.713
REL  13
Study on Extended Architecture Support for Proximity-based Services

TR 23.714
REL  14
Study on Control and User Plane Separation of EPC Nodes

TR 23.715
REL  16
Study on System enhancements for Provision of Access to Restricted Local Operator Services by an Unauthenticated UE

TR 23.716
REL  16
Study on the Wireless and Wireline Convergence for the 5G System Architecture

TR 23.718
REL  13
Architecture enhancement for Flexible Mobile Service Steering

TR 23.719
REL  14
Feasibility Study on Service Domain Centralization

TR 23.720
REL  13
Study on Architecture enhancements for Cellular Internet of Things

TR 23.721
REL  14
Study on Sponsored Data Connectivity Improvements

TR 23.722
REL  15
Study on Common API Framework for 3GPP Northbound APIs

TR 23.724
REL  16
Study on CIoT support and Evolution for the 5GS

TR 23.725
REL  16
Study on enhancement of URLLC support in the 5GC

TR 23.726
REL  16
Study on enhancing Topology of SMF and UPF in 5G Networks

TR 23.729
REL  15
Study on Unlicensed Spectrum Offloading System enhancements

TR 23.730
REL  14
Study on Extended Architecture support for Cellular Internet of Things

TR 23.731
REL  16
Study on enhancement to the 5GC LoCation Services

TR 23.732
REL  16
Study on User data Interworking, Coexistence and Migration

TR 23.733
REL  15
Study on Architecture enhancements to ProSe UE-to-Network Relay

TR 23.734
REL  16
Study on enhancement of 5GS for Vertical and LAN Services

TR 23.735
REL  16
Study on enhancements of Public Warning System

TR 23.737
REL  17
Study on Architecture aspects for using Satellite Access in 5G

TR 23.740
REL  16
Study on enhancement of Network Slicing

TR 23.741
REL  13
Study on enhancements to MBMS for LTE

TR 23.742
REL  16
Study on enhancements to the Service-Based Architecture

TR 23.743
REL  16
Study on Optimisations on UE radio capability signalling

TR 23.744
REL  17
Study on Location enhancements for Mission Critical Services

TR 23.745
REL  17
Study on application layer support for Factories of the Future in 5G network

TR 23.746
REL  14
Study on System Architecture enhancements to eMBMS for Television Video Service

TR 23.748
REL  17
Study on enhancement of support for Edge Computing in 5GC

TR 23.749
REL  14
Study on S8 Home Routing Architecture for VoLTE

TR 23.750
REL  14
Study for Robust Call Setup for VoLTE Subscriber in LTE

TR 23.751
REL  15
Study on support of Voice over WLAN

TR 23.752
REL  17
Study on system enhancement for Proximity based Services (ProSe) in the 5GS

TR 23.754
REL  17
Study on supporting Unmanned Aerial Systems (UAS) connectivity, Identification and tracking

TR 23.755
REL  17
Study on application layer support for Unmanned Aerial Systems (UAS)

TR 23.756
REL  16
Study for Single Radio Voice Continuity from 5G to 3G

TR 23.757
REL  17
Study on architectural enhancements for 5G Multicast-Broadcast services

TR 23.758
REL  17
Study on Application Architecture for enabling Edge Applications

TR 23.759
REL  15
Study for enhanced VoLTE Performance

TR 23.761
REL  17
Study on System Enablers for Devices having multiple USIM

TR 23.764
REL  17
Study on enhancements to Application layer support for V2X services

TR 23.768
REL  12
Study on Architecture enhancements to Support Group Communication System Enablers for LTE

TR 23.769
REL  13
Group based enhancements

TR 23.770
REL  13
Study on System impacts of extended Discontinuous Reception (DRX) Cycle for Power Consumption Optimization

TR 23.771
REL  13
Study on System impacts of IMS Emergency Sessions over WLAN

TR 23.773
REL  14
Study on extension in the Group based enhancements in the Network Capability Exposure functions

TR 23.774
REL  17
Study on Mission Critical Services over 5G Multicast Broadcast System

TR 23.776
REL  17
Study on architecture enhancements for 3GPP support of advanced Vehicle-to-Everything (V2X) services; Phase 2

TR 23.778
REL  16
Study on Mission Critical Services Access aspects

TR 23.779
REL  13
Study on Application Architecture to support MCPTT Services

TR 23.780
REL  14
Study on MBMS usage for Mission Critical Communication Services

TR 23.781
REL  15
Study on Migration and Interconnection for Mission Critical Services

TR 23.782
REL  15
Study on Mission Critical Communication Interworking between LTE and non-LTE systems

TR 23.783
REL  18
Study on Mission Critical services support over the 5G System

TR 23.784
REL  16
Study on Discreet Listening and Logging for Mission Critical Services

TR 23.785
REL  14
Study on Architecture enhancements for LTE support of V2X Services

TR 23.786
REL  16
Study on Architecture enhancements for EPS and 5G System to support advanced V2X Services

TR 23.789
REL  13
Monitoring enhancements

TR 23.790
REL  15
Study on Application Architecture for the Future Railway Mobile Communication System (FRMCS)

TR 23.791
REL  16
Study of Enablers for Network Automation for 5G

TR 23.792
REL  16
Study on MBMS APIs for Mission Critical Services

TR 23.793
REL  16
Study on Access Traffic Steering, Switch and Splitting support in the 5G System Architecture

TR 23.794
REL  17
Study on Enhanced IMS to 5GC Integration

TR 23.795
REL  16
Study on Application Layer support for V2X Services

TR 23.796
REL  16
Study on Application Architecture for the FRMCS Phase 2

TR 23.797
REL  13
Study on Architecture enhancements to support Isolated E-UTRAN Operation for Public Safety

TR 23.798
REL  15
Study on enhancements to Isolated E-UTRAN Operation for Public Safety

TR 23.799
REL  14
Study on Architecture for Next Generation System

Up

TR 23.800
REL  12
Study on Application Based Charging (ABC)

TR 23.802
REL  7
Architectural enhancements for end-to-end QoS

TR 23.804
REL  7
Support of SMS and MMS over Generic 3GPP IP Access

TR 23.806
REL  7
Voice Call Continuity between CS and IMS Study

TR 23.810
REL  8
Study on Architecture impacts of Service Brokering

TR 23.811
REL  8
Service Level Interworking for Messaging Services

TR 23.812
REL  11
Feasibility Study on IMS evolution

TR 23.813
REL  11
Study on Policy Solutions and Enhancements

TR 23.814
REL  3
Separating RR and MM Specific Parts of the MS Classmark

TR 23.815
REL  5
Charging Implications of IMS Architecture

TR 23.816
REL  7
Identification of Communication Services in IMS

TR 23.820
REL  8 → 9
Study of IMS Restoration Procedures

TR 23.824
REL  10
IP-SM-GW enhancements for Interworking with OMA Converged IP Messaging

TR 23.826
REL  9
Feasibility Study on VCC support for Emergency Calls

TR 23.828
REL  8
ETWS Requirements and Solutions

TR 23.829
REL  10
Local IP Access and Selected IP Traffic Offload (LIPA-SIPTO)

TR 23.830
REL  9
Architecture aspects of HNB/HeNB

TR 23.831
REL  10
IMS Service Continuity – Inter-UE Transfer enhancements

TR 23.832
REL  10
IMS aspects of Architecture for HNB

TR 23.834
REL  10
Study on GTP-based S2b

TR 23.838
REL  9
IMS Service Continuity enhancements – Service, Policy and Interaction

TR 23.839
REL  12
Study on support of Broadband Forum (BBF) Access Interworking

TR 23.840
REL  7
Study into Routeing of MT-SMs via the HPLMN

TR 23.841
REL  6
Presence Service Architecture

TR 23.842
REL  11
Study on Network provided Location Information to the IMS

TR 23.843
REL  12
Study on Core Network Overload (CNO) Solutions

TR 23.844
REL  12
Feasibility Study on IMS Based Peer-to-Peer Content Distribution Services

TR 23.845
REL  10
Study on User Data Convergence (UDC) Evolution

TR 23.846
REL  6
Multimedia Broadcast/Multicast Service (MBMS)

TR 23.847
REL  8
Enhancements to IMS Service Functionalities Facilitating Multicast Bearer Services

TR 23.849
REL  11
Study on Stage 2 aspects of OSCAR in the IMS whilst Roaming

TR 23.850
REL  11
Study on Roaming Architecture for Voice over IMS with Local Breakout

TR 23.851
REL  6
Network Sharing – Architecture and Functional Description

TR 23.852
REL  12
Study on S2a Mobility based on GTP and WLAN Access to the EPC network (SaMOG)

TR 23.853
REL  12
Operator Policies for IP Interface Selection (OPIIS)

TR 23.854
REL  11
Enhancements for Multimedia Priority Service (MPS)

TR 23.855
REL  11
Data Identification in Access Network Discovery and Selection Function (ANDSF) (DIDA)

TR 23.856
REL  10
Single Radio Voice Call Continuity (SRVCC) Enhancements

TR 23.857
REL  11
Study of EPC Nodes Restoration

TR 23.858
REL  13
Usage Monitoring Control PCC Enhancement

TR 23.859
REL  12
LIPA Mobility and SIPTO at the Local Network

TR 23.860
REL  10
Enabling Coder Selection and Rate Adaptation for UTRAN and E-UTRAN for Load Adaptive Applications

TR 23.861
REL  13
Network based IP Flow Mobility

TR 23.862
REL  12
EPC enhancements to support Interworking with Data Application Providers

TR 23.863
REL  12
Support of SMS in IMS without MSISDN

TR 23.865
REL  12
WLAN Network Selection for 3GPP Terminals

TR 23.866
REL  12
System improvements for Energy Efficiency

TR 23.867
REL  7
IP-based IMS Emergency Sessions

TR 23.868
REL  9
Feasibility Study on Extension of Support for IMS Emergency Calls

TR 23.869
REL  9
Support for IP based IMS Emergency Calls over GPRS and EPS

TR 23.870
REL  9
Single Radio Voice Call Continuity (SR-VCC) support for IMS Emergency Calls

TR 23.871
REL  5
Enhanced support for User Privacy in Location Services (LCS)

TR 23.872
REL  8
Study on Architecture of IMS based Customized Alerting Tone (CAT)

TR 23.873
REL  4
Feasibility Study for Transport and Control Separation in the PS CN Domain

TR 23.875
REL  5
Support of Push Service

TR 23.877
REL  6
Architectural aspects of Speech-enabled Services

TR 23.879
REL  9
Study on CS Domain Services over Evolved PS Access

TR 23.882
REL  8
3GPP SAE: Report on Technical Options and Conclusions

TR 23.883
REL  9
Study on enhancements to IMS Centralized Services (ICS)

TR 23.885
REL  11
Feasibility Study of SRVCC from UTRAN/GERAN to E-UTRAN/HSPA

TR 23.886
REL  10
Feasibility Study of Single Radio Video Call Continuity (vSRVCC)

TR 23.887
REL  12
Study on MTC and other Mobile Data Applications Communications enhancements

TR 23.888
REL  11
System improvements for Machine-Type Communications (MTC)

TR 23.889
REL  10
Local Call Local Switch (LCLS) System impacts – Feasibility study

TR 23.890
REL  12
Optimized Offloading to WLAN in 3GPP RAT Mobility

TR 23.891
REL  9
Evaluation of LCS Control Plane Solutions for EPS

TR 23.892
REL  8
IMS Centralized Services

TR 23.893
REL  8
Feasibility Study on Multimedia Session Continuity

TR 23.894
REL  10
System enhancements for the use of IMS Services in Local Breakout and Optimal Routeing of Media

TR 23.895
REL  6
Provision of UE Specific Behaviour Information to Network Entities

TR 23.896
REL  12
Support for Fixed Broadband Access Networks Convergence

TR 23.897
REL  12
Feasibility Study on IMS Business Trunking for IP-PBX in Static Mode of Operation

TR 23.898
REL  7
Access Class Barring and Overload Protection (ACBOP)

Up

TR 23.903
REL  6 → 17
Redial Solution for Voice-Video Switching

TR 23.908
REL  3 → 4
Pre-Paging

TR 23.909
REL  3 → 4
Gateway Location Register

TR 23.910
REL  3 → 5
Circuit Switched Data Bearer Services

TR 23.911
REL  3 → 4
Out-of-Band Transcoder Control

TR 23.912
REL  3 → 4
Super-Charger

TR 23.919
REL  7 → 17
Direct Tunnel Deployment Guideline

TR 23.923
REL  3
Combined GSM and Mobile IP Mobility Handling in UMTS IP CN

TR 23.924
REL  10 → 17
Feasibility Study on Non-Access Stratum (NAS) Node Selection Function above BSC/RNC

TR 23.930
REL  3 → 4
Iu Principles

TR 23.941
REL  6
GUP — Data Description Method (DDM)

TR 23.958
REL  18
Edge Application Standards in 3GPP and Alignment with External Organizations

TR 23.972
REL  3
CS Multimedia Telephony

TR 23.973
REL  16 → 17
User Data Interworking, Coexistence and Migration

TR 23.975
REL  11 → 17
IPv6 Migration Guidelines

TR 23.976
REL  6 → 17
Push Architecture

TR 23.977
REL  6 → 17
Bandwidth And Resource Savings (BARS) and Speech enhancements for CS Networks

TR 23.979
REL  6 → 17
PoC Services

TR 23.981
REL  5 → 17
Interworking Aspects and Migration Scenarios for IPv4 based IMS Implementations

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