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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, 3-11 March 2026
Geneva, 17-26 November 2025
Geneva, 19-28 February 2025
Geneva, 1-10 May 2024
E-Meeting, 7 February 2024
Geneva, 10-20 October 2023
Geneva, 10-19 May 2023
Geneva, 7 December 2022
Geneva, 6-15 July 2022
E-Meeting, 1-10 December 2021
E-Meeting, 15-16 July 2021
E-Meeting, 17-26 March 2021
E-Meeting, 18 December 2020
E-Meeting, 4 December 2020
E-Meeting, 19 November 2020
E-Meeting, 22-31 July 2020
Geneva, 4-13 March 2020
Geneva, 16-25 October 2019
Geneva, 26 June 2019
Geneva, 6-15 March 2019
Geneva, 31 October 2018
Geneva, 18-27 July 2018
Geneva, 8-17 November 2017
Geneva, 12-13 July 2017
Geneva, 6-15 February 2017
Geneva, 27 June - 6 July 2016
Geneva, 29 April 2016
Sophia Antipolis, 24 March 2016
Geneva, 2-11 December 2015
Geneva, 22-29 April 2015
Geneva, 21 November 2014
Geneva, 9-16 July 2014
Geneva, 21 February 2014
Geneva, 14-20 November 2013
Kampala, 7-13 November 2013
Geneva, 21 June 2013
Geneva, 25 February - 1 March 2013
Geneva, 11-15 June 2012
Geneva, 17 February 2012
Geneva, 17-21 October 2011
Geneva, 13 May 2011
Geneva, 24-28 January 2011
Geneva, 10 September 2010
Geneva, 26-30 April 2010
Geneva, 28 January 2010
Mar del Plata, 2-10 September 2009
Geneva, 21 May 2009
Geneva, 19-23 January 2009
Geneva, 12 September 2008
Geneva, 5 September 2008
Seoul, 16-23 January 2008
Geneva, 21 September 2007
Geneva, 23-27 April 2007
Geneva, 3 November 2006
Geneva, 24-28 July 2006
Geneva, 23-27 January 2006
Type of action
Any
Action
Comment
Information
With title containing all these words
Full search in ITU-T LSs Database
Total found:
20
Page Size:
10
20
50
100
IETF BMWG-LS3
- [
https://www.itu.int/ifa/t/2025/ls/ietfbmwg/sp18-ietfbmwg-00003.pdf
]
LS on progress of IETF's work on "Benchmarking Methodology for Segment Routing"
Approved on 2026-01-07
.
For action to:
Q13/11
For information to:
-
Deadline:
-
Submitted as:
T25-SG11-260303-TD-GEN-0893
Meeting:
Geneva, 3-11 March 2026
SG17-LS59
- [
https://www.itu.int/ifa/t/2025/ls/sg17/sp18-sg17-00059.zip
]
LS on work progress on Quantum-based security in SG17
Approved on 2025-12-11
.
For action to:
-
For information to:
Q2/11
Deadline:
-
Submitted as:
T25-SG11-260303-TD-GEN-0883
Meeting:
Geneva, 3-11 March 2026
SG17-LS66
- [
https://www.itu.int/ifa/t/2025/ls/sg17/sp18-sg17-00066.docx
]
LS/r on SG17 inputs on the development of ITU-T Standards Success Stories (reply to TSAG-LS5 and TSAG-LS14)
Approved on 2025-12-11
in response to
TSAG-LS5
,
TSAG-LS4
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG11-260303-TD-GEN-0885
Meeting:
Geneva, 3-11 March 2026
SG17-LS70
- [
https://www.itu.int/ifa/t/2025/ls/sg17/sp18-sg17-00070.docx
]
LS on transition of the existing CQR (Co-located Quantum Resistance) meeting into JRG (Joint Rapporteur meeting)
Approved on 2025-12-11
.
For action to:
-
For information to:
Q2/11
Deadline:
-
Submitted as:
T25-SG11-260303-TD-GEN-0887
Meeting:
Geneva, 3-11 March 2026
SG17-LS68
- [
https://www.itu.int/ifa/t/2025/ls/sg17/sp18-sg17-00068.zip
]
LS on the progress of the Correspondence Group on SG17 Strategy for AI Security in Telecommunications/ICTs (CG-AISEC-STRAT)
Approved on 2025-12-11
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG11-260303-TD-GEN-0886
Meeting:
Geneva, 3-11 March 2026
SG17-LS71
- [
https://www.itu.int/ifa/t/2025/ls/sg17/sp18-sg17-00071.zip
]
LS on SG17 comments on draft ITU-T E.RAAQ.TSCA in SG2-TD280Rev1
Approved on 2025-12-11
in response to
SG5-LS15
,
ITU-D SG 2-2/416-E
,
SG2-LS54
,
SG15-LS90
,
SG20-LS83
,
ITU-R SG 4-Document 4/TEMP/2
,
ITU-R SG 5-LS28
,
SG11-LS52
.
For action to:
Q2/11
For information to:
-
Deadline:
2026-06-01
Submitted as:
T25-SG11-260303-TD-GEN-0888
Meeting:
Geneva, 3-11 March 2026
SG17-LS65
- [
https://www.itu.int/ifa/t/2025/ls/sg17/sp18-sg17-00065.docx
]
LS/r on request to update security contacts and to provide information on security-related Recommendations or other texts under development (reply to SG11-LS52, SG20-LS83, SG15-LS90, SG2-LS54, SG5-LS15, ITU-R SG 4-Document 4/TEMP/2, ITU-D SG 2-2/416-E)
Approved on 2025-12-11
in response to
SG5-LS15
,
ITU-D SG 2-2/416-E
,
SG2-LS54
,
SG15-LS90
,
SG20-LS83
,
ITU-R SG 4-Document 4/TEMP/2
,
ITU-R SG 5-LS28
,
SG11-LS52
.
For action to:
All questions
For information to:
-
Deadline:
2026-05-31
Submitted as:
T25-SG11-260303-TD-GEN-0884
Meeting:
Geneva, 3-11 March 2026
SG17-LS76
- [
https://www.itu.int/ifa/t/2025/ls/sg17/sp18-sg17-00076.zip
]
LS on initiation of two new work items related to computing power networks
Approved on 2025-12-11
.
For action to:
-
For information to:
Q4/11; Q5/11; Q14/11
Deadline:
-
Submitted as:
T25-SG11-260303-TD-GEN-0889
Meeting:
Geneva, 3-11 March 2026
SCV-LS63
- [
https://www.itu.int/ifa/t/2025/ls/scv/sp18-scv-00063.docx
]
LS/r on the definition of the term “calling line identification certificate (CLIC)” (Reply to ITU-T SG11-LS51)
Approved on 2025-12-11
in response to
SG11-LS51
.
For action to:
Q2/11
For information to:
-
Deadline:
-
Submitted as:
T25-SG11-260303-TD-GEN-0896
Meeting:
Geneva, 3-11 March 2026
SCV-LS69
- [
https://www.itu.int/ifa/t/2025/ls/scv/sp18-scv-00069.docx
]
LS/r on request for feedback on the term “integrated resource scheduling” (Reply to ITU-T SG11-LS68)
Approved on 2025-12-11
in response to
SG11-LS68
.
For action to:
-
For information to:
Q6/11
Deadline:
-
Submitted as:
T25-SG11-260303-TD-GEN-0897
Meeting:
Geneva, 3-11 March 2026
SG17-LS108
- [
https://www.itu.int/ifa/t/2025/ls/sg17/sp18-sg17-00108.docx
]
LS on Coordination for Identity Management
Approved on 2025-12-11
.
For action to:
Q2/11; Q4/11; Q12/11; Q15/11
For information to:
-
Deadline:
2026-04-17
Submitted as:
T25-SG11-260303-TD-GEN-0890
Meeting:
Geneva, 3-11 March 2026
SG17-LS120
- [
https://www.itu.int/ifa/t/2025/ls/sg17/sp18-sg17-00120.docx
]
LS on SG17 establishment of new work item ITU-T XSTR.CRAMMS Technical Report: “Cyber Security Reference Architectures, Methodologies, Models and Strategies (CRAMMS) Roadmap”
Approved on 2025-12-11
.
For action to:
-
For information to:
Q2/11; Q4/11; Q5/11; Q7/11; Q12/11
Deadline:
-
Submitted as:
T25-SG11-260303-TD-GEN-0900
Meeting:
Geneva, 3-11 March 2026
TSAG-LS15
- [
https://www.itu.int/ifa/t/2025/ls/tsag/sp18-tsag-00015.docx
]
LS on the fourth submission of TSAG to the Council Working Group for Strategic and Financial Plans (2028-2031)
Approved on 2025-12-04
.
For action to:
-
For information to:
All questions
Deadline:
2026-01-15
Submitted as:
T25-SG11-260303-TD-GEN-0891
Meeting:
Geneva, 3-11 March 2026
FG-AINN-LS4
- [
https://www.itu.int/ifa/t/2025/ls/fg-ainn/sp18-fg-ainn-00004.DOCX
]
LS on information on Focus Group on Artificial Intelligence Native for Telecommunication Networks (FG-AINN) 2026 work plan
Approved on 2025-12-03
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG11-260303-TD-GEN-0895
Meeting:
Geneva, 3-11 March 2026
ETSI ISG QKD-(25)39035r1
- [
https://www.itu.int/ifa/t/2025/ls/etsiisgqkd/sp18-etsiisgqkd-00022.docx
]
LS on activities of ETSI ISG QKD as of QKD#39 (December 2025)
Approved on 2025-12-03
.
For action to:
-
For information to:
Q2/11
Deadline:
-
Submitted as:
T25-SG11-260303-TD-GEN-0892
Meeting:
Geneva, 3-11 March 2026
SG21-LS164
- [
https://www.itu.int/ifa/t/2025/ls/sg21/sp18-sg21-00164.docx
]
LS on new terms and definitions produced in SG21
Approved on 2025-12-02
.
For action to:
-
For information to:
All questions
Deadline:
2026-06-30
Submitted as:
T25-SG11-260303-TD-GEN-0899
Meeting:
Geneva, 3-11 March 2026
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:
Q8/11
For information to:
-
Deadline:
2026-03-31
Submitted as:
T25-SG11-260303-TD-GEN-0894
Meeting:
Geneva, 3-11 March 2026
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:
-
For information to:
Q2/11; Q6/11; Q7/11; Q8/11; Q13/11
Deadline:
2026-02-09
Submitted as:
T25-SG11-260303-TD-GEN-0881
Meeting:
Geneva, 3-11 March 2026
BROADBAND FORUM-LIAISE-725
- [
https://www.itu.int/ifa/t/2025/ls/broadbandforum/sp18-broadbandforum-00187.docx
]
LS on recently published Broadband Forum Work Items (November 2025)
Approved on 2025-11-20
.
For action to:
-
For information to:
Q4/11; Q5/11; Q14/11; Q16/11
Deadline:
-
Submitted as:
T25-SG11-260303-TD-GEN-0882
Meeting:
Geneva, 3-11 March 2026
SG5-LS58
- [
https://www.itu.int/ifa/t/2025/ls/sg5/sp18-sg5-00058.zip
]
LS on terms contained in ITU-T Study Group 5 consented Recommendations and ongoing draft Recommendations and Supplements
Approved on 2025-11-06
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG11-260303-TD-GEN-0898
Meeting:
Geneva, 3-11 March 2026
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