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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:
77
Page Size:
10
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100
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ETSI TC SAI-SAI(25)009022
- [
https://www.itu.int/ifa/t/2025/ls/etsitcsai/sp18-etsitcsai-00003.pdf
]
LS on notification of ETSI TC SAI activity including ENAP for EN 304 223
Approved on 2025-09-26
.
For action to:
All questions
For information to:
-
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0179
Meeting:
Geneva, 3-11 December 2025
SG20-LS47
- [
https://www.itu.int/ifa/t/2025/ls/sg20/sp18-sg20-00047.docx
]
LS/r on the initiation of two new work items related to identity for metaverse (reply to SG21-LS82)
Approved on 2025-09-25
in response to
SG21-LS82
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0180
Meeting:
Geneva, 3-11 December 2025
ISO/IEC JTC1/SC27/WG5-LS54
- [
https://www.itu.int/ifa/t/2025/ls/iso_iecjtc1_sc27_wg5/sp18-iso_iecjtc1_sc27_wg5-00054.zip
]
LS on ISO/IEC 27566-1 submission to ITU-T SG17 for adoption using ITU-T A.25 procedures
Approved on 2025-09-23
.
For action to:
Q10/17
For information to:
-
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0176
Meeting:
Geneva, 3-11 December 2025
TSAG-LS14
- [
https://www.itu.int/ifa/t/2025/ls/tsag/sp18-tsag-00014.docx
]
LS on Proposed template for ITU-T Standards Success Stories
Approved on 2025-09-16
.
For action to:
All questions
For information to:
-
Deadline:
2025-12-22
Submitted as:
T25-SG17-251203-TD-GEN-0181
Meeting:
Geneva, 3-11 December 2025
ISO/IEC JTC1/SC27/WG3-N3013
- [
https://www.itu.int/ifa/t/2025/ls/iso_iecjtc1_sc27_wg3/sp18-iso_iecjtc1_sc27_wg3-00020.zip
]
LS on the progress of the 2nd working draft (WD 2) of the project 25544 Technical Report
Approved on 2025-09-11
.
For action to:
Q15/17
For information to:
-
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0177
Meeting:
Geneva, 3-11 December 2025
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-SG17-251203-TD-GEN-0175
Meeting:
Geneva, 3-11 December 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:
Q2/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0170
Meeting:
Geneva, 3-11 December 2025
SG2-LS49
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-00049.zip
]
LS/r on the establishment of the Correspondence Group on SG17 Strategy for AI security in telecommunications/ICTs (CG-AISEC-STRAT) (reply to SG17-LS38)
Approved on 2025-09-05
in response to
SG17-LS38
.
For action to:
-
For information to:
Q2/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0171
Meeting:
Geneva, 3-11 December 2025
SG2-LS54
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-00054.docx
]
LS/r on update of security contacts and information on security-related Recommendations or other texts under development (reply to SG17-LS18)
Approved on 2025-09-05
in response to
SG17-LS18
.
For action to:
-
For information to:
Q1/17; Q2/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0172
Meeting:
Geneva, 3-11 December 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:
Q11/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0173
Meeting:
Geneva, 3-11 December 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:
Q10/17; Q11/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0174
Meeting:
Geneva, 3-11 December 2025
SG2-LS69
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-00069.docx
]
LS on SCV activity in SG2
Approved on 2025-09-05
.
For action to:
All questions
For information to:
-
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0178
Meeting:
Geneva, 3-11 December 2025
ISO/IEC JTC1/SC27/WG3-LS18
- [
https://www.itu.int/ifa/t/2025/ls/iso_iecjtc1_sc27_wg3/sp18-iso_iecjtc1_sc27_wg3-00018.zip
]
LS/r on SG17 work progress on Quantum-based security (reply SG17-LS162)
Approved on 2025-08-12
in response to
SG17-LS162
.
For action to:
Q15/17
For information to:
-
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0162
Meeting:
Geneva, 3-11 December 2025
ISO/IEC JTC1/SC27/WG3-LS19
- [
https://www.itu.int/ifa/t/2025/ls/iso_iecjtc1_sc27_wg3/sp18-iso_iecjtc1_sc27_wg3-00019.zip
]
LS on progress on quantum related work items
Approved on 2025-08-12
.
For action to:
Q11/17; Q15/17
For information to:
-
Deadline:
2025-09-08
Submitted as:
T25-SG17-251203-TD-GEN-0163
Meeting:
Geneva, 3-11 December 2025
IETF-LS30
- [
https://www.itu.int/ifa/t/2025/ls/ietf/sp18-ietf-00030.docx
]
LS/r on Towards a common definition of Zero Trust
Approved on 2025-08-06
.
For action to:
-
For information to:
Q1/17; Q2/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0146
Meeting:
Geneva, 3-11 December 2025
SCV-LS49
- [
https://www.itu.int/ifa/t/2025/ls/scv/sp18-scv-00049.docx
]
LS on the term “massive Internet of Things” and its definition developed by ITU-T Study Group 17
Approved on 2025-08-05
.
For action to:
Q1/17; Q6/17
For information to:
-
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0167
Meeting:
Geneva, 3-11 December 2025
SCV-LS50
- [
https://www.itu.int/ifa/t/2025/ls/scv/sp18-scv-00050.docx
]
LS on the term “smart residential community (SRC)” and its definition developed by ITU-T Study Group 17
Approved on 2025-08-05
.
For action to:
-
For information to:
Q1/17; Q7/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0168
Meeting:
Geneva, 3-11 December 2025
SCV-LS54
- [
https://www.itu.int/ifa/t/2025/ls/scv/sp18-scv-00054.docx
]
LS on terms and definitions developed by ITU-T Study Group 17 (5 August 2025)
Approved on 2025-08-05
.
For action to:
Q1/17; Q2/17; Q6/17; Q7/17; Q10/17; Q13/17
For information to:
-
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0169
Meeting:
Geneva, 3-11 December 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:
Q2/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0131
Meeting:
Geneva, 3-11 December 2025
SG13-LS54
- [
https://www.itu.int/ifa/t/2025/ls/sg13/sp18-sg13-00054.zip
]
LS on consent of draft new Recommendation ITU-T Y.3661 (ex Y.bDDN-AM-COINO) “Big data driven networking - architecture and mechanism for customer-oriented intelligent network operation”
Approved on 2025-07-25
.
For action to:
-
For information to:
Q8/17
Deadline:
-
Submitted as:
T25-SG17-251203-TD-GEN-0132
Meeting:
Geneva, 3-11 December 2025
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