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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
E-Meeting, 9 April 2026
Geneva, 2 April 2026
E-Meeting, 6 February 2026
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:
166
Page Size:
10
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ISO/IEC JTC1/SC27/WG5-LS55
- [
https://www.itu.int/ifa/t/2025/ls/iso_iecjtc1_sc27_wg5/sp18-iso_iecjtc1_sc27_wg5-00055.zip
]
Ls on Identity management and privacy technologies - status of the WG 5 projects
Approved on 2025-12-08
.
For action to:
-
For information to:
Q3/17; Q6/17; Q7/17; Q10/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0286
Meeting:
Geneva, 3-11 December 2025
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:
Q2/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0271
Meeting:
Geneva, 3-11 December 2025
SG11-LS62
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00062.zip
]
LS on consent of draft new Recommendation ITU-T Q.4080 (ex Q.MUD_IoT) “Framework for testing and monitoring IoT devices and networks using Technical Requirements from Manufacturer Usage Description (MUD)”
Approved on 2025-11-28
.
For action to:
-
For information to:
Q6/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0266
Meeting:
Geneva, 3-11 December 2025
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:
Q6/17
For information to:
-
Deadline:
2026-03-31
Submitted as:
T25-SG17-251203-TD-GEN-0268
Meeting:
Geneva, 3-11 December 2025
SG11-LS52
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00052.docx
]
LS/r to update security contacts and to provide information on security-related Recommendations or other texts under development (reply to SG17-LS18)
Approved on 2025-11-26
in response to
SG17-LS18
.
For action to:
Q1/17
For information to:
-
Deadline:
2026-02-27
Submitted as:
T25-SG17-251203-TD-GEN-0257
Meeting:
Geneva, 3-11 December 2025
SG11-LS53
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00053.docx
]
LS/r on the definition of smartphone developed by ITU-T Study Group 17 (reply to SCV-LS8 and SCV-LS40)
Approved on 2025-11-26
in response to
SCV-LS8
,
SCV-LS40
.
For action to:
Q1/17
For information to:
-
Deadline:
2026-02-27
Submitted as:
T25-SG17-251203-TD-GEN-0258
Meeting:
Geneva, 3-11 December 2025
SG11-LS54
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00054.zip
]
LS on outcomes of ITU Workshop on Securing Telephone Networks
Approved on 2025-11-26
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0259
Meeting:
Geneva, 3-11 December 2025
SG11-LS55
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00055.docx
]
LS/r on UWB abbreviation to the ITU Terms and Definitions database and request to provide a definition for this term (reply to ITU-R WP1B-1B/TEMP/21(Rev.1))
Approved on 2025-11-26
in response to
ITU-R WP 1B-Document 1B/TEMP/21 (Rev.1)
.
For action to:
-
For information to:
Q2/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0260
Meeting:
Geneva, 3-11 December 2025
SG11-LS56
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00056.docx
]
LS/r on Coordination for Identity Management (reply to SG17-LS27)
Approved on 2025-11-26
in response to
SG17-LS27
.
For action to:
-
For information to:
Q10/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0261
Meeting:
Geneva, 3-11 December 2025
SG11-LS57
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00057.zip
]
LS on work progress on quantum key distribution network (QKDN) in SG11
Approved on 2025-11-26
.
For action to:
-
For information to:
Q15/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0262
Meeting:
Geneva, 3-11 December 2025
SG11-LS58
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00058.zip
]
LS/r on E.RAA4Q.TSCA “Registration Authority Assignment criteria to issue digital public certificates for use by Q.TSCA” (reply to SG2-LS63)
Approved on 2025-11-26
in response to
SG2-LS63
.
For action to:
-
For information to:
Q11/17
Deadline:
2026-02-27
Submitted as:
T25-SG17-251203-TD-GEN-0263
Meeting:
Geneva, 3-11 December 2025
SG11-LS59
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00059.zip
]
LS on draft new Recommendation Q.TSCA “Requirements for issuing End-Entity and Certification Authority public-key certificates for enabling trustable signalling interconnection between network entities”
Approved on 2025-11-26
.
For action to:
-
For information to:
Q11/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0264
Meeting:
Geneva, 3-11 December 2025
SG11-LS61
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00061.zip
]
LS on determination of draft new Recommendation ITU-T Q.5015 (ex Q.cco-mec) "Signalling requirements for orchestration supporting confidential computing in multi-access edge computing"
Approved on 2025-11-26
.
For action to:
-
For information to:
Q8/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0265
Meeting:
Geneva, 3-11 December 2025
SG11-LS63
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00063.docx
]
LS on call for updates for pilot projects and reference table of ITU-T Recommendations suitable for C&I testing
Approved on 2025-11-26
.
For action to:
All questions
For information to:
-
Deadline:
2026-02-27
Submitted as:
T25-SG17-251203-TD-GEN-0267
Meeting:
Geneva, 3-11 December 2025
SG11-LS65
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-00065.docx
]
LS on Questionnaire on the use of ITU-T Recommendations in national conformity assessment framework, including type approval
Approved on 2025-11-26
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0270
Meeting:
Geneva, 3-11 December 2025
ISO/IEC JTC1/SC27-LS158
- [
https://www.itu.int/ifa/t/2025/ls/iso_iecjtc1_sc27/sp18-iso_iecjtc1_sc27-00158.zip
]
LS on submission of IS text of ISO/IEC 27566-1
Approved on 2025-11-24
.
For action to:
Q10/17
For information to:
-
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0251
Meeting:
Geneva, 3-11 December 2025
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:
Q2/17
Deadline:
2026-02-09
Submitted as:
T25-SG17-251203-TD-GEN-0269
Meeting:
Geneva, 3-11 December 2025
OASIS-LS22
- [
https://www.itu.int/ifa/t/2025/ls/oasis/sp18-oasis-00022.docx
]
LS on status of submissions and most current drafts for X.1221 (X.stie): Structured threat information expression and X.1222 (X.taeii): Trusted automated exchange of intelligence information
Approved on 2025-11-20
.
For action to:
Q4/17
For information to:
-
Deadline:
2025-11-20
Submitted as:
T25-SG17-251203-TD-GEN-0248
Meeting:
Geneva, 3-11 December 2025
OASIS-LS23
- [
https://www.itu.int/ifa/t/2025/ls/oasis/sp18-oasis-00023.docx
]
Intent to contribute standard under development to ITU-T
Approved on 2025-11-20
.
For action to:
Q4/17
For information to:
-
Deadline:
2025-11-20
Submitted as:
T25-SG17-251203-TD-GEN-0249
Meeting:
Geneva, 3-11 December 2025
ETSI TC CYBER WG EUSR-CYBEREUSR(25)26b007r2
- [
https://www.itu.int/ifa/t/2025/ls/etsitccyberwgeusr/sp18-etsitccyberwgeusr-00001.docx
]
LS on Open Consultation on the Vertical Standards Relating to the EU Cyber Resilience Act (CRA)
Approved on 2025-11-17
.
For action to:
Q1/17
For information to:
-
Deadline:
2025-11-30
Submitted as:
T25-SG17-251203-TD-GEN-0239
Meeting:
Geneva, 3-11 December 2025
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