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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:
147
Page Size:
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SG2-LS9
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-oLS-00009.docx
]
LS/r on the definitions for term calling line identification certificate (CLIC) (reply to SCV-LS6)
Approved on 2025-02-14
in response to
SCV-LS6
.
For action to:
Q2/11
For information to:
-
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0222
Meeting:
Geneva, 19-28 February 2025
SG2-LS16
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-oLS-00016.docx
]
LS on a contribution titled: Proposed new work item on "A new standard for call control API for the signalling processing equipment in the call validation framework for voice fraud detection and protection"
Approved on 2025-02-14
.
For action to:
Q2/11
For information to:
-
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0223
Meeting:
Geneva, 19-28 February 2025
SG2-LS34
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-oLS-00034.zip
]
LS on new work item TR.NIN-SIM: “Technical Report on NIN-SIM Integration”
Approved on 2025-02-14
.
For action to:
-
For information to:
Q2/11
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0224
Meeting:
Geneva, 19-28 February 2025
SG2-LS2
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-oLS-00002.docx
]
LS on proposed new work item M.cpii: "Requirements of computing power identification for computing power networks interworking"
Approved on 2025-02-14
.
For action to:
Q4/11; Q5/11
For information to:
-
Deadline:
2025-08-01
Submitted as:
T25-SG11-250219-TD-GEN-0225
Meeting:
Geneva, 19-28 February 2025
SG2-LS8
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-oLS-00008.docx
]
LS on SCV activity in SG2
Approved on 2025-02-14
.
For action to:
All questions
For information to:
-
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0226
Meeting:
Geneva, 19-28 February 2025
SG2-LS35
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-oLS-00035.zip
]
LS on a contribution titled: "Registration Authority Assignment criteria to issue digital public certificates for use by Q.TSCA" (E.RAA4Q.TSCA)
Approved on 2025-02-14
.
For action to:
Q2/11
For information to:
-
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0227
Meeting:
Geneva, 19-28 February 2025
SG2-LS37
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-oLS-00037.docx
]
LS/r on the resolution of AAP comments (reply to TSAG-LS44)
Approved on 2025-02-14
in response to
TSAG-LS44
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0228
Meeting:
Geneva, 19-28 February 2025
SG2-LS40
- [
https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-oLS-00040.zip
]
LS on Provision of handset-derived caller location information for emergency communications
Approved on 2025-02-14
.
For action to:
Q3/11
For information to:
-
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0229
Meeting:
Geneva, 19-28 February 2025
SCV-LS11
- [
https://www.itu.int/ifa/t/2025/ls/scv/sp18-scv-iLS-00011.docx
]
LS on terms and definitions developed by ITU-T Study Group 11 (30 January 2025)
Approved on 2025-01-30
.
For action to:
Q6/11; Q7/11; Q15/11; Q16/11
For information to:
-
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0213
Meeting:
Geneva, 19-28 February 2025
SCV-LS20
- [
https://www.itu.int/ifa/t/2025/ls/scv/sp18-scv-iLS-00020.docx
]
LS on the definition of the term 'information leakage' from ITU-T Study Group 11
Approved on 2025-01-30
.
For action to:
Q16/11
For information to:
-
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0214
Meeting:
Geneva, 19-28 February 2025
SG20-LS6
- [
https://www.itu.int/ifa/t/2025/ls/sg20/sp18-sg20-oLS-00006.docx
]
LS on the establishment of a new Question under ITU-T Study Group 20
Approved on 2025-01-24
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0201
Meeting:
Geneva, 19-28 February 2025
SG20-LS9
- [
https://www.itu.int/ifa/t/2025/ls/sg20/sp18-sg20-oLS-00009.zip
]
LS on the initiation of two new work items related to identity for metaverse
Approved on 2025-01-24
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0202
Meeting:
Geneva, 19-28 February 2025
SG20-LS11
- [
https://www.itu.int/ifa/t/2025/ls/sg20/sp18-sg20-oLS-00011.zip
]
LS on initiation of new work item on draft Recommendation ITU-T Y.DIoT-req-cap, “General requirements and capability framework of decentralized/distributed Internet of things”
Approved on 2025-01-24
.
For action to:
-
For information to:
Q12/11
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0203
Meeting:
Geneva, 19-28 February 2025
SG20-LS12
- [
https://www.itu.int/ifa/t/2025/ls/sg20/sp18-sg20-oLS-00012.docx
]
LS on Revised Title and Terms of Reference of JCA-IoT and SC&C
Approved on 2025-01-24
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0204
Meeting:
Geneva, 19-28 February 2025
SG20-LS13
- [
https://www.itu.int/ifa/t/2025/ls/sg20/sp18-sg20-oLS-00013.docx
]
LS on Draft Terms of Reference of the Joint Coordination Activities on metaverse standardization
Approved on 2025-01-24
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0205
Meeting:
Geneva, 19-28 February 2025
SG21-LS2
- [
https://www.itu.int/ifa/t/2025/ls/sg21/sp18-sg21-oLS-00002.docx
]
LS on Draft Terms of Reference of the Joint Coordination Activities on metaverse standardization
Approved on 2025-01-24
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0204
Meeting:
Geneva, 19-28 February 2025
SG20-LS44
- [
https://www.itu.int/ifa/t/2025/ls/sg20/sp18-sg20-oLS-00044.zip
]
LS on initiation of new work item on draft Recommendation ITU-T Y.DIoT-data-space “The architecture of blockchain based distributed infrastructure for trusted data space”
Approved on 2025-01-24
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0209
Meeting:
Geneva, 19-28 February 2025
SG21-LS76
- [
https://www.itu.int/ifa/t/2025/ls/sg21/sp18-sg21-oLS-00076.docx
]
LS on revised text of Question 9/21 on metaverse
Approved on 2025-01-24
.
For action to:
-
For information to:
All questions
Deadline:
2025-06-30
Submitted as:
T25-SG11-250219-TD-GEN-0212
Meeting:
Geneva, 19-28 February 2025
SG21-LS6
- [
https://www.itu.int/ifa/t/2025/ls/sg21/sp18-sg21-oLS-00006.docx
]
LS/r on the definitions for term smartphone from ITU-T Study Group 17 (SCV-LS8)
Approved on 2025-01-24
in response to
SCV-LS8
.
For action to:
-
For information to:
All questions
Deadline:
2025-09-30
Submitted as:
T25-SG11-250219-TD-GEN-0215
Meeting:
Geneva, 19-28 February 2025
SG21-LS41
- [
https://www.itu.int/ifa/t/2025/ls/sg21/sp18-sg21-oLS-00041.zip
]
LS on initiation of new work item ITU-T H.VSBD-P "Protocols for big data application in video surveillance systems"
Approved on 2025-01-24
.
For action to:
-
For information to:
Q4/11; Q6/11; Q7/11
Deadline:
-
Submitted as:
T25-SG11-250219-TD-GEN-0216
Meeting:
Geneva, 19-28 February 2025
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