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ITU-T Liaison Statements
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ITU-T Liaison Statements
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Incoming liaison statements allocated to an ITU-T Study Group meeting (
*
)
ITU-T Study Group
Any
ITU-T TSAG [Telecommunication Standardization Advisory Group]
ITU-T SG2 [Operational aspects of telecommunications and ICTs]
ITU-T SG3 [Tariff and accounting principles and international telecommunication/ICT economic and policy issues]
ITU-T SG5 [Environment, climate action, circular economy and electromagnetic fields]
ITU-T SG11 [Signalling requirements, protocols, test specifications and combating counterfeit telecommunication/ICT devices]
ITU-T SG12 [Performance, quality of service (QoS) and quality of experience (QoE)]
ITU-T SG13 [Future networks and emerging network technologies]
ITU-T SG15 [Networks, technologies and infrastructures for transport, access and home]
ITU-T SG17 [Security]
ITU-T SG20 [Internet of things (IoT) and smart cities and communities (SC&C)]
ITU-T SG21 [Technologies for multimedia, content delivery and cable television]
Meeting
Geneva, 4-13 February 2026
Geneva, 25 August - 5 September 2025
Geneva, 5-14 February 2025
Geneva, 19-28 June 2024
E-Meeting, 11 March 2024
Geneva, 8-17 November 2023
E-Meeting, 13-22 March 2023
Geneva, 16-20 May 2022
E-Meeting, 8-19 November 2021
E-Meeting, 31 May - 11 June 2021
E-Meeting, 18 December 2020
E-Meeting, 7-8 September 2020
E-Meeting, 27 May - 5 June 2020
Geneva, 4-13 December 2019
Geneva, 19-28 February 2019
Geneva, 4-13 July 2018
Geneva, 27 November - 1 December 2017
Geneva, 29 March - 7 April 2017
Geneva, 14-23 September 2016
Geneva, 20-29 January 2016
Geneva, 18-27 March 2015
Geneva, 28 May - 6 June 2014
Geneva, 17-26 September 2013
Geneva, 22-31 January 2013
Geneva, 21-29 March 2012
Geneva, 1-10 June 2011
Geneva, 9-18 November 2010
Geneva, 17-21 May 2010
Geneva, 16-24 November 2009
Geneva, 24 March - 2 April 2009
Geneva, 23 September 2008
Geneva, 6-15 May 2008
Geneva, 30 October - 8 November 2007
Geneva, 27-31 August 2007
Geneva, 30 January - 8 February 2007
Geneva, 3-11 May 2006
Type of action
Any
Action
Comment
Information
With title containing all these words
Full search in ITU-T LSs Database
Total found:
53
Page Size:
10
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100
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JCA-MV-LS1
- [
https://www.itu.int/ifa/t/2025/ls/jca-mv/sp18-jca-mv-00001.docx
]
LS on Invitation to Nominate Representatives to ITU-T JCA-MV and Provide Input to the Metaverse Standardization Roadmap
Approved on 2025-11-27
.
For action to:
All questions
For information to:
-
Deadline:
2026-03-31
Submitted as:
T25-SG02-260204-TD-GEN-0330
Meeting:
Geneva, 4-13 February 2026
SG11-LS51
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00051.docx
]
LS/r on the definitions for term calling line identification certificate (CLIC) (reply to SG2-LS65)
Approved on 2025-11-26
in response to
SG2-LS65
.
For action to:
-
For information to:
Q1/2
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0323
Meeting:
Geneva, 4-13 February 2026
SG11-LS54
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00054.zip
]
LS on outcomes of ITU Workshop on Securing Telephone Networks
Approved on 2025-11-26
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0324
Meeting:
Geneva, 4-13 February 2026
SG11-LS57
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00057.zip
]
LS on work progress on quantum key distribution network (QKDN) in SG11
Approved on 2025-11-26
.
For action to:
-
For information to:
Q5/2; Q6/2; Q7/2
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0325
Meeting:
Geneva, 4-13 February 2026
SG11-LS58
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00058.zip
]
LS/r on E.RAA4Q.TSCA “Registration Authority Assignment criteria to issue digital public certificates for use by Q.TSCA” (reply to SG2-LS63)
Approved on 2025-11-26
in response to
SG2-LS63
.
For action to:
Q1/2
For information to:
-
Deadline:
2026-02-27
Submitted as:
T25-SG02-260204-TD-GEN-0326
Meeting:
Geneva, 4-13 February 2026
SG11-LS59
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00059.zip
]
LS on draft new Recommendation Q.TSCA “Requirements for issuing End-Entity and Certification Authority public-key certificates for enabling trustable signalling interconnection between network entities”
Approved on 2025-11-26
.
For action to:
-
For information to:
Q1/2; Q3/2
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0327
Meeting:
Geneva, 4-13 February 2026
SG11-LS60
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00060.docx
]
LS/r on comments for A.RA: Requirements for issuing End-Entity and Certification Authority public-key certificates for enabling trustable signalling interconnection between network entities (reply to TSAG-LS2)
Approved on 2025-11-26
in response to
TSAG-LS2
.
For action to:
-
For information to:
Q1/2
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0328
Meeting:
Geneva, 4-13 February 2026
SG11-LS63
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00063.docx
]
LS on call for updates for pilot projects and reference table of ITU-T Recommendations suitable for C&I testing
Approved on 2025-11-26
.
For action to:
All questions
For information to:
-
Deadline:
2026-02-27
Submitted as:
T25-SG02-260204-TD-GEN-0329
Meeting:
Geneva, 4-13 February 2026
TM Forum-TMF25-006
- [
https://www.itu.int/ifa/t/2025/ls/tmforum/sp18-tmforum-00037.docx
]
LS on the consent of Recommendation ITU-T M.3351.2 (ex. M.ptomkgc) and initiation of a new work item ITU-T M.kfr-KMTOM in Q6/2
Approved on 2025-11-20
in response to
SG2-LS46
.
For action to:
Q6/2
For information to:
-
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0322
Meeting:
Geneva, 4-13 February 2026
SG3-LS10
- [
https://www.itu.int/ifa/t/2025/ls/sg3/sp18-sg3-00010.zip
]
LS on OTT-related definitions
Approved on 2025-11-07
.
For action to:
Q3/2
For information to:
-
Deadline:
2026-02-13
Submitted as:
T25-SG02-260204-TD-GEN-0292
Meeting:
Geneva, 4-13 February 2026
SG13-LS101
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00101.docx
]
LS on revision of JCA-AI/ML ToR and the name
Approved on 2025-11-06
.
For action to:
-
For information to:
Q5/2
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0296
Meeting:
Geneva, 4-13 February 2026
SG13-LS102
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00102.docx
]
LS on revision of JCA-IMT2020 name and ToR
Approved on 2025-11-06
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0295
Meeting:
Geneva, 4-13 February 2026
SG13-LS103
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00103.zip
]
LS on AI agent related activities in ITU-T SG13
Approved on 2025-11-06
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0297
Meeting:
Geneva, 4-13 February 2026
SG13-LS107
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00107.zip
]
LS on consent of draft new Recommendation ITU-T Y.3168 (ex Y.DT-NS) “Digital Twin for Network Slicing in IMT-2020 networks and beyond”
Approved on 2025-11-06
.
For action to:
-
For information to:
Q5/2; Q6/2; Q7/2
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0298
Meeting:
Geneva, 4-13 February 2026
SG13-LS105
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00105.zip
]
LS on consent of draft new Recommendation ITU-T Y.3064 (formerly Y.KM-AN) “Knowledge management for autonomous networks”
Approved on 2025-11-06
.
For action to:
-
For information to:
Q6/2
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0299
Meeting:
Geneva, 4-13 February 2026
SG13-LS108
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00108.zip
]
LS on consent of draft new Recommendation ITU-T Y.3169 (ex Y.REOUPF) “Resource Efficiency Optimization for managing User Plane Function in IMT-2020 networks and beyond”
Approved on 2025-11-06
.
For action to:
-
For information to:
Q5/2; Q6/2; Q7/2
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0300
Meeting:
Geneva, 4-13 February 2026
SG13-LS109
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00109.zip
]
LS on consent of draft new Recommendation ITU-T Y.3189 (ex Y.STI-NS) “Network slicing in satellite-terrestrial integration in IMT-2020 networks and beyond”
Approved on 2025-11-06
.
For action to:
-
For information to:
Q5/2; Q6/2; Q7/2
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0301
Meeting:
Geneva, 4-13 February 2026
SG13-LS110
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00110.zip
]
LS on consent of draft new Recommendation ITU-T Y.3402 (ex Y.M&O-CNC) “Coordination of networking and computing in IMT-2020 networks and beyond –Management and orchestration”
Approved on 2025-11-06
.
For action to:
-
For information to:
Q5/2; Q6/2; Q7/2
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0302
Meeting:
Geneva, 4-13 February 2026
SG13-LS111
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00111.zip
]
LS on consent of draft new Recommendation ITU-T Y.3225 (ex Y.FMSC-CNC) “Fixed, mobile and satellite convergence – Coordination of networking and computing for IMT-2020 networks and beyond”
Approved on 2025-11-06
.
For action to:
-
For information to:
Q5/2; Q6/2; Q7/2
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0303
Meeting:
Geneva, 4-13 February 2026
SG13-LS112
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00112.zip
]
LS on consent of draft new Recommendation ITU-T Y.2503 (ex Y.NGNe-O-CPN-reqts) “Computing Power Network - Requirements and framework of NGNe orchestration enhancements for supporting computing power network”
Approved on 2025-11-06
.
For action to:
-
For information to:
Q5/2; Q6/2; Q7/2
Deadline:
-
Submitted as:
T25-SG02-260204-TD-GEN-0304
Meeting:
Geneva, 4-13 February 2026
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