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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, 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:
97
Page Size:
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FG-AINN-LS3
- [
https://www.itu.int/ifa/t/2025/ls/fg-ainn/sp18-fg-ainn-00003.docx
]
LS on information and call for contributions to the new Focus Group on Artificial Intelligence Native for Telecommunication Networks (FG-AINN)
Approved on 2025-09-10
.
For action to:
All questions
For information to:
-
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0595
Meeting:
Geneva, 17-26 November 2025
SG2-LS45
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-00045.zip
]
LS on consent of draft new Recommendation ITU-T M.3374 (ex M.rcpnm) and initiation of two new work items (M.rcpnsm and M.cpnm-ir ) on CPN management
Approved on 2025-09-05
.
For action to:
-
For information to:
Q4/11; Q5/11; Q14/11
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0588
Meeting:
Geneva, 17-26 November 2025
SG2-LS63
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-00063.docx
]
LS/r on a contribution titled: "Registration Authority Assignment criteria to issue digital public certificates for use by Q.TSCA"(update and reply to SG11-LS36)
Approved on 2025-09-05
in response to
SG11-LS36
.
For action to:
-
For information to:
Q2/11
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0589
Meeting:
Geneva, 17-26 November 2025
SG2-LS64
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-00064.docx
]
LS/r on the work item TR.NIN-SIM: “Technical Report on NIN-SIM Integration” (reply to SG11-LS39)
Approved on 2025-09-05
in response to
SG11-LS39
.
For action to:
-
For information to:
Q2/11
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0590
Meeting:
Geneva, 17-26 November 2025
SG2-LS65
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-00065.docx
]
LS/r on the definitions for term calling line identification certificate (CLIC) (reply to SG11-LS26, SCV-LS6)
Approved on 2025-09-05
in response to
SCV-LS6
,
SG11-LS26
.
For action to:
Q2/11
For information to:
-
Deadline:
2026-01-01
Submitted as:
T25-SG11-251117-TD-GEN-0591
Meeting:
Geneva, 17-26 November 2025
SG2-LS66
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-00066.docx
]
LS/r on proposed new work item ITU-T M.cpii “Requirements of computing power identification for computing power networks interworking” (reply to SG11-LS8)
Approved on 2025-09-05
in response to
SG11-LS8
.
For action to:
-
For information to:
Q4/11
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0592
Meeting:
Geneva, 17-26 November 2025
3GPP TSG SA5-S5-253444-LS68
- [
https://www.itu.int/ifa/t/2025/ls/3gpptsgsa5/sp18-3gpptsgsa5-00068.docx
]
LS/r on ZSM work on Agent and Autonomy (reply to ETSI ISG ZSM-(25)000129r1-LS16)
Approved on 2025-08-29
in response to
ETSI ISG ZSM-(25)000129r1-LS16
.
For action to:
-
For information to:
Q1/11; Q5/11; Q6/11; Q8/11; Q13/11
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0587
Meeting:
Geneva, 17-26 November 2025
ETSI TC INT-(25)000034
- [
https://www.itu.int/ifa/t/2025/ls/etsitcint/sp18-etsitcint-00005.docx
]
LS on Endorsement of ITU-T Recommendations and Technical Reports by ETSI
Approved on 2025-08-27
.
For action to:
-
For information to:
Q16/11
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0571
Meeting:
Geneva, 17-26 November 2025
SCV-LS51
- [
https://www.itu.int/ifa/t/2025/ls/scv/sp18-scv-00051.docx
]
LS/r on the validation of the terms and definitions contained in Recommendations ITU-T Q.5011, ITU-T Q.5013, ITU-T Q.5031 and ITU-T Q.5054 (reply to SG11-LS31)
Approved on 2025-08-05
in response to
SG11-LS31
.
For action to:
All questions
For information to:
-
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0572
Meeting:
Geneva, 17-26 November 2025
SG13-LS53
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00053.zip
]
LS on consent of draft new Recommendation ITU-T Y.2500 (ex Y.CPN-DF) and agreement of new Supplement 90 to ITU-T Y.2500-series (Y.Suppl.CPN-SR)
Approved on 2025-07-25
.
For action to:
-
For information to:
Q4/11; Q5/11; Q14/11
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0563
Meeting:
Geneva, 17-26 November 2025
SG13-LS55
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00055.zip
]
LS on initiation of new Supplement to ITU-T Y.2500-series (Y.Suppl.CPN-PAGuide) "Guidance on practical applicability of CPN"
Approved on 2025-07-25
.
For action to:
-
For information to:
Q4/11; Q5/11; Q14/11
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0564
Meeting:
Geneva, 17-26 November 2025
SG13-LS59
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00059.zip
]
LS on consent of draft new Recommendation ITU-T Y.3555 (ex Y.mc-arch) "Cloud computing – Functional architecture for multi-cloud"
Approved on 2025-07-25
.
For action to:
-
For information to:
Q4/11; Q5/11; Q7/11; Q13/11; Q14/11
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0565
Meeting:
Geneva, 17-26 November 2025
SG13-LS60
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00060.zip
]
LS on the consent of draft new Recommendations ITU-T Y.3556 (ex Y.ccmm-reqts) "Cloud computing – Framework and functional requirements of microservice monitoring" and ITU-T Y.3557 (ex Y.ccimvc) "Cloud computing - Functional requirements of management for virtual machine and container integration"
Approved on 2025-07-25
.
For action to:
-
For information to:
Q4/11; Q5/11; Q7/11; Q13/11; Q14/11
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0566
Meeting:
Geneva, 17-26 November 2025
SG13-LS61
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00061.zip
]
LS on consent of draft new Recommendation ITU-T Y.3701 (ex Y.cdp-reqts) “Data handling – Functional requirements of collaborative data processing in data platforms”
Approved on 2025-07-25
.
For action to:
-
For information to:
Q2/11; Q4/11; Q6/11
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0567
Meeting:
Geneva, 17-26 November 2025
SG13-LS62
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00062.zip
]
LS on consent of draft new Recommendation ITU-T Y.3166 (ex Y.U2USM-req-fra) “Future networks including IMT-2020 network - Requirements and framework for the support of UE-to-UE session management”
Approved on 2025-07-25
.
For action to:
-
For information to:
Q6/11; Q7/11; Q8/11
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0568
Meeting:
Geneva, 17-26 November 2025
SG13-LS64
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00064.zip
]
LS on consent of draft new Recommendation ITU-T Y.3223 (ex Y.FMSC-MEC) “Fixed, mobile and satellite convergence – Multi-access edge computing for IMT-2020 networks and beyond”
Approved on 2025-07-25
.
For action to:
-
For information to:
Q1/11; Q6/11
Deadline:
2026-03-31
Submitted as:
T25-SG11-251117-TD-GEN-0561
Meeting:
Geneva, 17-26 November 2025
SG13-LS65
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00065.zip
]
LS on consent of draft new Recommendation ITU-T Y.3224 (ex Y.FMSC-InNetFL) “Fixed, mobile and satellite convergence – Requirements and framework for in-network aggregated federated learning for enabling AI in IMT-2020 networks and beyond”
Approved on 2025-07-25
.
For action to:
-
For information to:
Q1/11; Q6/11
Deadline:
2026-03-31
Submitted as:
T25-SG11-251117-TD-GEN-0562
Meeting:
Geneva, 17-26 November 2025
SG13-LS66
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00066.zip
]
LS on consent of draft new Recommendation ITU-T Y.3165 (ex Y.CCO-req) “Requirements of orchestration supporting confidential computing for network slices in IMT-2020 networks and beyond”
Approved on 2025-07-25
.
For action to:
-
For information to:
Q6/11; Q7/11; Q8/11
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0569
Meeting:
Geneva, 17-26 November 2025
SG13-LS67
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00067.zip
]
LS on initiation of new work item ITU-T Y.MLPaaS-reqts “Cloud computing – Functional requirements of PaaS for machine learning applications"
Approved on 2025-07-25
.
For action to:
-
For information to:
Q4/11; Q5/11; Q7/11; Q13/11; Q14/11
Deadline:
-
Submitted as:
T25-SG11-251117-TD-GEN-0570
Meeting:
Geneva, 17-26 November 2025
SG13-LS70
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00070.zip
]
LS on initiation of new work item ITU-T Y.FMSC-UEGC “Fixed, mobile and satellite convergence – Supporting user equipment group communication for IMT-2020 networks and beyond”
Approved on 2025-07-25
.
For action to:
-
For information to:
Q1/11; Q6/11
Deadline:
2026-03-31
Submitted as:
T25-SG11-251117-TD-GEN-0575
Meeting:
Geneva, 17-26 November 2025
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