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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, 27 February 2026
Tashkent, 28 October - 6 November 2025
Geneva, 25 July 2025
Geneva, 3-14 March 2025
Geneva, 15-26 July 2024
Geneva, 4-15 March 2024
Geneva, 23 October - 3 November 2023
Geneva, 26 July 2023
Geneva, 13-24 March 2023
Geneva, 25 November 2022
Geneva, 14 November 2022
Geneva, 4-15 July 2022
E-Meeting, 29 November - 10 December 2021
E-Meeting, 16 July 2021
E-Meeting, 1-12 March 2021
E-Meeting, 17 December 2020
E-Meeting, 7 December 2020
E-Meeting, 20-31 July 2020
Geneva, 13 March 2020
Geneva, 14-25 October 2019
Geneva, 28 June 2019
Victoria Falls, 4-14 March 2019
Geneva, 2 November 2018
Geneva, 16-27 July 2018
Geneva, 18 April 2018
Geneva, 6-17 November 2017
Geneva, 14 July 2017
Geneva, 6-17 February 2017
Geneva, 27 June - 8 July 2016
Geneva, 29 April 2016
Geneva, 30 November - 11 December 2015
Geneva, 23 July 2015
Geneva, 20 April - 1 May 2015
Geneva, 21 November 2014
Geneva, 7-18 July 2014
Geneva, 28 February 2014
Kampala, 4-15 November 2013
Geneva, 28 June 2013
Geneva, 18 February - 1 March 2013
Geneva, 4-15 June 2012
Geneva, 17 February 2012
Geneva, 6 February 2012
Geneva, 10-21 October 2011
Geneva, 20 May 2011
Geneva, 17-28 January 2011
Geneva, 16 September 2010
Geneva, 19-30 April 2010
Geneva, 29 January 2010
Mar del Plata, 2-12 September 2009
Geneva, 22 May 2009
Geneva, 12-23 January 2009
Geneva, 12 September 2008
Geneva, 22 May 2008
Seoul, 14-25 January 2008
Geneva, 21 September 2007
Geneva, 16-27 April 2007
Geneva, 3 November 2006
Geneva, 17-28 July 2006
Geneva, 16-27 January 2006
Type of action
Any
Action
Comment
Information
With title containing all these words
Full search in ITU-T LSs Database
Total found:
4
Page Size:
10
20
50
100
3GPP TSG SA5-S5-255485
- [
https://www.itu.int/ifa/t/2025/ls/3gpptsgsa5/sp18-3gpptsgsa5-00071.docx
]
LS/r on Invitation to update the information in the IMT-2020 and beyond roadmap (reply to JCA-IMT2020-LS17)
Approved on 2025-11-21
in response to
JCA-IMT2020-LS17
.
For action to:
All questions
For information to:
All questions
Deadline:
2026-02-09
Submitted as:
T25-SG13-260227-TD-GEN-0173
Meeting:
Geneva, 27 February 2026
ITU-R SG 4-Documents 4C/TEMP/107, 4B/183
- [
https://www.itu.int/ifa/t/2025/ls/itu-rsg4/sp18-itu-rsg4-00003.docx
]
LS/r on the proposed term “multiple-input and multiple-output (MIMO)” and its definition [reply to CCT-Documents CCT/181 and CCT/189]
Approved on 2025-11-07
in response to
CCT-Documents CCT/181 and CCT/189
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-260227-TD-GEN-0174
Meeting:
Geneva, 27 February 2026
SG21-LS146
- [
https://www.itu.int/ifa/t/2025/ls/sg21/sp18-sg21-00146.docx
]
LS/r on interest for attending the Joint Correspondence Group on Trust (Joint-CG-Trust)] (TSAG-LS12)
Approved on 2025-10-17
in response to
TSAG-LS12
.
For action to:
-
For information to:
All questions
Deadline:
2026-02-15
Submitted as:
T25-SG13-260227-TD-WP4-0368
Meeting:
Geneva, 27 February 2026
SG20-LS101
- [
https://www.itu.int/ifa/t/2025/ls/sg20/sp18-sg20-00101.docx
]
LS/r on information about machine learning standardization (reply to SG13-LS31and SG13-LS67)
Approved on 2025-09-25
in response to
SG13-LS31
,
SG13-LS67
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-260227-TD-WP2-0168
Meeting:
Geneva, 27 February 2026
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