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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, digital twins and smart sustainable cities and communities]
ITU-T SG21 [Technologies for multimedia, content delivery and cable television]
Meeting
Geneva, 20-29 October 2026
Sophia Antipolis, 9-18 June 2026
Geneva, 29 October - 6 November 2025
Geneva, 3-12 June 2025
Wroclaw, 17-21 June 2024
Geneva, 13-22 November 2023
Sophia Antipolis, 13-23 June 2023
E-Meeting, 9 February 2023
E-Meeting, 5 December 2022
Rome, 17-27 October 2022
Geneva, 21 June - 1 July 2022
E-Meeting, 30 November - 10 December 2021
E-Meeting, 11-20 May 2021
E-Meeting, 19-23 October 2020
E-Meeting, 11-20 May 2020
Geneva, 16-20 September 2019
Geneva, 13-22 May 2019
Geneva, 11-21 September 2018
Geneva, 21-25 May 2018
Geneva, 5-9 March 2018
Sophia Antipolis, 13-22 November 2017
Geneva, 15-24 May 2017
Geneva, 10-14 October 2016
Kuala Lumpur, 20-27 April 2016
Geneva, 12-23 October 2015
Kochi, 8-19 December 2014
Geneva, 23-29 July 2014
Geneva, 19-23 May 2014
Lima, 2-13 December 2013
Geneva, 29 January - 7 February 2013
Geneva, 8-12 October 2012
Geneva, 11-19 April 2012
Seoul, 20-28 September 2011
Geneva, 27 April - 5 May 2011
Geneva, 23 November - 1 December 2010
Rome, 1 October 2010
Buenos Aires, 12-16 April 2010
Geneva, 19-22 January 2010
Geneva, 12-16 October 2009
Geneva, 25-29 May 2009
Geneva, 24-28 November 2008
Geneva, 25-29 February 2008
Geneva, 19-23 November 2007
Beijing, 14-18 May 2007
Geneva, 18-22 September 2006
Osaka, 22-26 May 2006
Type of action
Any
Action
Comment
Information
With title containing all these words
Full search in ITU-T LSs Database
Total found:
35
Page Size:
10
20
50
100
1
2
JCA-MV-LS3
- [
https://www.itu.int/ifa/t/2025/ls/jca-mv/sp18-jca-mv-00003.docx
]
LS on Request for Further Input to the Metaverse Standardization Roadmap and Invitation to Nominate Representatives to ITU-T JCA-MV
Approved on 2026-08-25
.
For action to:
All questions
For information to:
-
Deadline:
2026-11-19
Submitted as:
T25-SG05-261020-TD-GEN-1425
Meeting:
Geneva, 20-29 October 2026
FG-AINN-LS8
- [
https://www.itu.int/ifa/t/2025/ls/fg-ainn/sp18-fg-ainn-00008.docx
]
LS on revised FG-AINN Draft Deliverables
Approved on 2026-07-23
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG05-261020-TD-GEN-1399
Meeting:
Geneva, 20-29 October 2026
SG11-LS156
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00156.zip
]
LS on initiation of new work item Q.MP-CEC “Monitoring parameters and methods in future networks for Computing power and Electric power Coordination”
Approved on 2026-07-22
.
For action to:
-
For information to:
Q6/5; Q11/5
Deadline:
-
Submitted as:
T25-SG05-261020-TD-GEN-1410
Meeting:
Geneva, 20-29 October 2026
SG11-LS157
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00157.docx
]
LS/r on the ongoing work on draft Recommendation L.CP on Standardized terminology for Computing power and Electric power Coordination” (reply to SG5-LS62)
Approved on 2026-07-22
in response to
SG5-LS62
.
For action to:
Q8/5
For information to:
-
Deadline:
2026-12-31
Submitted as:
T25-SG05-261020-TD-GEN-1409
Meeting:
Geneva, 20-29 October 2026
SG11-LS182
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00182.zip
]
LS on consent of draft new Recommendation ITU-T Q.4181 (ex Q.PMEE) “Protocol for managing energy efficiency with AI-assisted analysis in IMT-2020 networks and beyond”
Approved on 2026-07-22
.
For action to:
-
For information to:
Q6/5
Deadline:
-
Submitted as:
T25-SG05-261020-TD-GEN-1418
Meeting:
Geneva, 20-29 October 2026
SG11-LS193
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00193.docx
]
LS/r on call for updates for pilot projects and reference table of ITU-T Recommendations suitable for C&I testing (reply to SG5-LS88)
Approved on 2026-07-22
in response to
SG5-LS88
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG05-261020-TD-GEN-1419
Meeting:
Geneva, 20-29 October 2026
SG21-LS194
- [
https://www.itu.int/ifa/t/2025/ls/sg21/sp18-sg21-00194.docx
]
LS/r on lead study group concept and coordination mechanisms (TSAG-LS21)
Approved on 2026-07-17
in response to
TSAG-LS21
.
For action to:
All questions
For information to:
-
Deadline:
2027-04-01
Submitted as:
T25-SG05-261020-TD-GEN-1392
Meeting:
Geneva, 20-29 October 2026
SG21-LS195
- [
https://www.itu.int/ifa/t/2025/ls/sg21/sp18-sg21-00195.docx
]
LS/r on a checklist for ITU-T deliverables (TSAG-LS20)
Approved on 2026-07-17
in response to
TSAG-LS20
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG05-261020-TD-GEN-1393
Meeting:
Geneva, 20-29 October 2026
SG21-LS197
- [
https://www.itu.int/ifa/t/2025/ls/sg21/sp18-sg21-00197.docx
]
LS/r on call for updates for pilot projects and reference table of ITU-T Recommendations suitable for C&I testing (SG11-LS63)
Approved on 2026-07-17
in response to
SG11-LS63
.
For action to:
-
For information to:
All questions
Deadline:
2027-04-01
Submitted as:
T25-SG05-261020-TD-GEN-1394
Meeting:
Geneva, 20-29 October 2026
SG21-LS201
- [
https://www.itu.int/ifa/t/2025/ls/sg21/sp18-sg21-00201.docx
]
LS/r on coordination for Identity Management (SG17-LS108)
Approved on 2026-07-17
in response to
SG17-LS108
.
For action to:
-
For information to:
All questions
Deadline:
2027-04-01
Submitted as:
T25-SG05-261020-TD-GEN-1395
Meeting:
Geneva, 20-29 October 2026
SG21-LS203
- [
https://www.itu.int/ifa/t/2025/ls/sg21/sp18-sg21-00203.docx
]
LS/r on CCT editorial comments on terms and definitions (SCV-LS111& SCV-LS118)
Approved on 2026-07-17
in response to
SCV-LS111
,
SCV-LS118
.
For action to:
-
For information to:
Q8/5
Deadline:
-
Submitted as:
T25-SG05-261020-TD-GEN-1396
Meeting:
Geneva, 20-29 October 2026
SG21-LS196
- [
https://www.itu.int/ifa/t/2025/ls/sg21/sp18-sg21-00196.docx
]
LS/r on request for feedback on the identification of needs to increase the support for the modernization of Study Groups (TSAG-LS27)
Approved on 2026-07-17
in response to
TSAG-LS27
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG05-261020-TD-GEN-1427
Meeting:
Geneva, 20-29 October 2026
SG15-LS112
- [
https://www.itu.int/ifa/t/2025/ls/sg15/sp18-sg15-00112.docx
]
LS/r to “the latest updates of Access Network Transport (ANT) and Home Network Transport (HNT) Standards Overviews and Work Plans” (reply to SG5-LS53)
Approved on 2026-07-10
in response to
SG5-LS53
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG05-261020-TD-GEN-1389
Meeting:
Geneva, 20-29 October 2026
SG15-LS95
- [
https://www.itu.int/ifa/t/2025/ls/sg15/sp18-sg15-00095.docx
]
LS on the latest updates of Access Network Transport (ANT) and Home Network Transport (HNT) Standards Overviews and Work Plans
Approved on 2026-07-10
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG05-261020-TD-GEN-1390
Meeting:
Geneva, 20-29 October 2026
SG13-LS212
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00212.docx
]
LS/r on lead study group concept and coordination mechanisms (TSAG-LS21)
Approved on 2026-07-02
in response to
TSAG-LS21
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG05-261020-TD-GEN-1376
Meeting:
Geneva, 20-29 October 2026
SG13-LS214
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00214.docx
]
LS/r on AI agent related activities in ITU-T SG13 (ETSI ISG ZSM-ZSM (26)000070)
Approved on 2026-07-02
in response to
ETSI ISG ZSM-ZSM(26)000070
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG05-261020-TD-GEN-1381
Meeting:
Geneva, 20-29 October 2026
SG13-LS216
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00216.zip
]
LS on agreement of new Technical Report ITU-T YSTR.IMT2030-terms “IMT-2030 networks – Considerations on terms and definitions” and initiation of draft new Recommendation ITU-T Y.IMT2030-terms “IMT-2030 networks – Terms and definitions”
Approved on 2026-07-02
.
For action to:
-
For information to:
Q8/5
Deadline:
-
Submitted as:
T25-SG05-261020-TD-GEN-1382
Meeting:
Geneva, 20-29 October 2026
SG13-LS229
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00229.zip
]
LS on initiation of draft new Recommendation ITU-T Y.FMSC-EFF “Fixed, mobile and satellite convergence – System efficiency enhancements for IMT-2020 networks and beyond”
Approved on 2026-07-02
.
For action to:
-
For information to:
Q6/5; Q9/5
Deadline:
2027-02-28
Submitted as:
T25-SG05-261020-TD-GEN-1383
Meeting:
Geneva, 20-29 October 2026
SG13-LS234
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00234.zip
]
LS on consent of daft new Recommendation ITU-T Y.3561 (ex Y.cna-princ) “Cloud Computing – Principles of Cloud Native Application Development”
Approved on 2026-07-02
.
For action to:
-
For information to:
Q6/5; Q9/5
Deadline:
-
Submitted as:
T25-SG05-261020-TD-GEN-1384
Meeting:
Geneva, 20-29 October 2026
SG13-LS235
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00235.zip
]
LS on consent of draft new Recommendation ITU-T Y.3609 (ex Y.ds-reqts) “Big data – Functional requirements for data supplier”
Approved on 2026-07-02
.
For action to:
-
For information to:
Q6/5; Q9/5
Deadline:
-
Submitted as:
T25-SG05-261020-TD-GEN-1385
Meeting:
Geneva, 20-29 October 2026
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