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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, 3-11 December 2025
Virtual Event, 10 October 2025
Virtual Event, 3-4 September 2025
Geneva, 8-17 April 2025
Geneva, 2-6 September 2024
E-Meeting, 11-12 July 2024
Geneva, 20 February - 1 March 2024
Goyang, 29 August - 8 September 2023
E-Meeting, 8 May 2023
Geneva, 21 February - 3 March 2023
Geneva, 23 August - 2 September 2022
E-Meeting, 10-20 May 2022
E-Meeting, 7 January 2022
E-Meeting, 24 August - 3 September 2021
E-Meeting, 20-30 April 2021
E-Meeting, 7 January 2021
E-Meeting, 24 August - 3 September 2020
E-Meeting, 29 May 2020
E-Meeting, 17-26 March 2020
Geneva, 27 August - 5 September 2019
Geneva, 22-30 January 2019
Geneva, 29 August - 7 September 2018
Geneva, 20-29 March 2018
Geneva, 29 August - 6 September 2017
Geneva, 22-30 March 2017
Geneva, 29 August - 7 September 2016
Geneva, 14-23 March 2016
Geneva, 8-17 September 2015
Geneva, 8-17 April 2015
Geneva, 17-26 September 2014
Geneva, 15-24 January 2014
Geneva, 26 August - 4 September 2013
Geneva, 17-26 April 2013
Geneva, 29 August - 7 September 2012
Geneva, 20 February - 2 March 2012
Geneva, 24 August - 2 September 2011
Geneva, 11-20 April 2011
Geneva, 8-17 December 2010
Geneva, 7-16 April 2010
Geneva, 16-25 September 2009
Geneva, 11-20 February 2009
Geneva, 15-19 September 2008
Geneva, 7-18 April 2008
Geneva, 10-14 December 2007
Geneva, 19-28 September 2007
Geneva, 20 April 2007
Geneva, 18-20 April 2007
Geneva, 16-20 April 2007
Geneva, 6-15 December 2006
Jeju Island, 19-28 April 2006
Geneva, 16-20 January 2006
Type of action
Any
Action
Comment
Information
With title containing all these words
Full search in ITU-T LSs Database
Total found:
105
Page Size:
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100
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ISO/IEC JTC1/SC27/WG5-27566-1
- [
https://www.itu.int/ifa/t/2025/ls/iso_iecjtc1_sc27_wg5/sp18-iso_iecjtc1_sc27_wg5-iLS-00052.zip
]
LS/i on ISO/IEC DIS 27566-1 – Age Assurance Systems – Part 1: Framework
Approved on 2025-04-09
.
For action to:
-
For information to:
-
Deadline:
-
Submitted as:
T25-SG17-250408-TD-GEN-0104
Meeting:
Geneva, 8-17 April 2025
SG15-LS16
- [
https://www.itu.int/ifa/t/2025/ls/sg15/sp18-sg15-oLS-00016.docx
]
LS/r on the latest updates of Access Network Transport (ANT) and Home Network Transport (HNT) Standards Overviews and Work Plans (reply to SG9-LS96 and SG21-LS9)
Approved on 2025-03-28
in response to
SG9-LS96
,
SG21-LS9
.
For action to:
-
For information to:
Q2/17
Deadline:
-
Submitted as:
T25-SG17-250408-TD-GEN-0099
Meeting:
Geneva, 8-17 April 2025
SG15-LS34
- [
https://www.itu.int/ifa/t/2025/ls/sg15/sp18-sg15-oLS-00034.zip
]
LS/r to TSAG on the resolution of AAP comments (reply to TSAG-LS44)
Approved on 2025-03-28
in response to
TSAG-LS44
.
For action to:
-
For information to:
Q1/17
Deadline:
-
Submitted as:
T25-SG17-250408-TD-GEN-0101
Meeting:
Geneva, 8-17 April 2025
SG15-LS35
- [
https://www.itu.int/ifa/t/2025/ls/sg15/sp18-sg15-oLS-00035.docx
]
LS/r to TSAG on FG-MV deliverables: allocation and guidance for future work (reply to TSAG-LS46)
Approved on 2025-03-28
in response to
TSAG-LS46
.
For action to:
-
For information to:
Q6/17
Deadline:
-
Submitted as:
T25-SG17-250408-TD-GEN-0102
Meeting:
Geneva, 8-17 April 2025
SG15-LS38
- [
https://www.itu.int/ifa/t/2025/ls/sg15/sp18-sg15-oLS-00038.docx
]
LS/r on Coordination for Identity Management (reply to SG17-LS139)
Approved on 2025-03-28
in response to
SG17-LS139
.
For action to:
-
For information to:
Q10/17
Deadline:
-
Submitted as:
T25-SG17-250408-TD-GEN-0103
Meeting:
Geneva, 8-17 April 2025
SG15-LS26
- [
https://www.itu.int/ifa/t/2025/ls/sg15/sp18-sg15-oLS-00026.zip
]
LS on OTNT Standardization Work Plan Issue 35
Approved on 2025-03-28
.
For action to:
Q2/17
For information to:
-
Deadline:
2025-10-06
Submitted as:
T25-SG17-250408-TD-GEN-0100
Meeting:
Geneva, 8-17 April 2025
SIA - Secure Identity Alliance-LS4
- [
https://www.itu.int/ifa/t/2025/ls/sia-secureidentityalliance/sp18-sia-secureidentityalliance-iLS-00004.docx
]
Open Standards Identity APIs (x.1281) extension for Authentic Sources Use Case from Secure Identity Alliance (SIA)
Approved on 2025-03-27
.
For action to:
-
For information to:
Q10/17
Deadline:
-
Submitted as:
T25-SG17-250408-TD-GEN-0082
Meeting:
Geneva, 8-17 April 2025
Open ID Foundation--
- [
https://www.itu.int/ifa/t/2025/ls/openidfoundation/sp18-openidfoundation-iLS-00003.zip
]
LS on OpenID Connect Core 1.0 – Errata Set 2 as candidate ITU-T Recommendations (X.oicc)
Approved on 2025-03-21
.
For action to:
Q10/17
For information to:
-
Deadline:
2025-04-17
Submitted as:
T25-SG17-250408-TD-GEN-0070
Meeting:
Geneva, 8-17 April 2025
ETSI ISG QKD-(25)037ab003r1
- [
https://www.itu.int/ifa/t/2025/ls/etsiisgqkd/sp18-etsiisgqkd-iLS-00019.docx
]
LS on activities of ETSI ISG QKD as of meeting QKD-AH#37ab
Approved on 2025-03-18
.
For action to:
Q15/17
For information to:
-
Deadline:
-
Submitted as:
T25-SG17-250408-TD-GEN-0077
Meeting:
Geneva, 8-17 April 2025
SG13-LS1
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-oLS-00001.docx
]
LS/r on the resolution of AAP comments (TSAG-LS44)
Approved on 2025-03-14
in response to
TSAG-LS44
.
For action to:
-
For information to:
Q1/17
Deadline:
-
Submitted as:
T25-SG17-250408-TD-GEN-0071
Meeting:
Geneva, 8-17 April 2025
SG13-LS4
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-oLS-00004.zip
]
LS on information about the progress of IMT-2030 network studies within SG13
Approved on 2025-03-14
.
For action to:
-
For information to:
Q2/17
Deadline:
-
Submitted as:
T25-SG17-250408-TD-GEN-0074
Meeting:
Geneva, 8-17 April 2025
SG13-LS5
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-oLS-00005.zip
]
LS on initiation of new work item ITU-T Y.cnps “Service model of attestation-assisted credible network path provisioning based on orchestration in future networks”
Approved on 2025-03-14
.
For action to:
Q2/17
For information to:
-
Deadline:
2025-06-30
Submitted as:
T25-SG17-250408-TD-GEN-0075
Meeting:
Geneva, 8-17 April 2025
SG13-LS6
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-oLS-00006.zip
]
LS on work progress on Quantum Key Distribution (QKD) network in SG13 (as of March 2025)
Approved on 2025-03-14
.
For action to:
-
For information to:
Q15/17
Deadline:
-
Submitted as:
T25-SG17-250408-TD-GEN-0076
Meeting:
Geneva, 8-17 April 2025
SG13-LS7
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-oLS-00007.zip
]
LS on the work item related to QKD and IPSec integration framework in SG13
Approved on 2025-03-14
.
For action to:
-
For information to:
Q15/17
Deadline:
2025-09-01
Submitted as:
T25-SG17-250408-TD-GEN-0006
Meeting:
Geneva, 8-17 April 2025
SG13-LS8
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-oLS-00008.zip
]
LS/r on comments on ISO/IEC 2nd WD 31303 “Trustworthiness - Overview and concepts” (ISO/IEC JTC1/WG13)
Approved on 2025-03-14
in response to
ISO/IEC JTC1/WG13-ISO/IEC JTC 1/WG 13 N 812
.
For action to:
-
For information to:
Q1/17
Deadline:
-
Submitted as:
T25-SG17-250408-TD-GEN-0083
Meeting:
Geneva, 8-17 April 2025
SG13-LS9
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-oLS-00009.zip
]
LS on initiation of draft new Technical Paper of ITU-T, TP.DataInfra-Web3 “Trustworthy Data Infrastructure for Web 3.0”
Approved on 2025-03-14
.
For action to:
-
For information to:
Q1/17; Q7/17
Deadline:
2025-09-01
Submitted as:
T25-SG17-250408-TD-GEN-0084
Meeting:
Geneva, 8-17 April 2025
SG13-LS10
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-oLS-00010.zip
]
LS on initiation of draft new Supplement ITU-T Y.supp.trust-roadmap “Standardization roadmap on trustworthy networking and services for study period 2025-2028”
Approved on 2025-03-14
.
For action to:
-
For information to:
Q1/17
Deadline:
-
Submitted as:
T25-SG17-250408-TD-GEN-0085
Meeting:
Geneva, 8-17 April 2025
SG13-LS11
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-oLS-00011.zip
]
LS on the new work item Technical Report ITU-T TR.TLCM “Analysis of Trusted Life Cycle Management of communication devices in Telecommunication Network”
Approved on 2025-03-14
.
For action to:
-
For information to:
Q2/17
Deadline:
-
Submitted as:
T25-SG17-250408-TD-GEN-0086
Meeting:
Geneva, 8-17 April 2025
SG13-LS14
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-oLS-00014.zip
]
LS/r on progress of CPN definition (SG2-LS12 & SG17-LS156)
Approved on 2025-03-14
in response to
SG17-LS156
,
SG2-LS12
.
For action to:
-
For information to:
Q2/17
Deadline:
-
Submitted as:
T25-SG17-250408-TD-GEN-0087
Meeting:
Geneva, 8-17 April 2025
SG13-LS15
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-oLS-00015.zip
]
LS on consent of draft new Recommendation ITU-T Y.3087 (ex Y.SCid-fra) “Self-controlled identity based on blockchain – Functional requirements and architecture”
Approved on 2025-03-14
.
For action to:
All questions; Q10/17; Q11/17
For information to:
-
Deadline:
2025-04-20
Submitted as:
T25-SG17-250408-TD-GEN-0088
Meeting:
Geneva, 8-17 April 2025
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