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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
Tashkent, 28 October - 6 November 2025
Geneva, 25 July 2025
Geneva, 3-14 March 2025
Geneva, 15-26 July 2024
Geneva, 4-15 March 2024
Geneva, 23 October - 3 November 2023
Geneva, 26 July 2023
Geneva, 13-24 March 2023
Geneva, 25 November 2022
Geneva, 14 November 2022
Geneva, 4-15 July 2022
E-Meeting, 29 November - 10 December 2021
E-Meeting, 16 July 2021
E-Meeting, 1-12 March 2021
E-Meeting, 17 December 2020
E-Meeting, 7 December 2020
E-Meeting, 20-31 July 2020
Geneva, 13 March 2020
Geneva, 14-25 October 2019
Geneva, 28 June 2019
Victoria Falls, 4-14 March 2019
Geneva, 2 November 2018
Geneva, 16-27 July 2018
Geneva, 18 April 2018
Geneva, 6-17 November 2017
Geneva, 14 July 2017
Geneva, 6-17 February 2017
Geneva, 27 June - 8 July 2016
Geneva, 29 April 2016
Geneva, 30 November - 11 December 2015
Geneva, 23 July 2015
Geneva, 20 April - 1 May 2015
Geneva, 21 November 2014
Geneva, 7-18 July 2014
Geneva, 28 February 2014
Kampala, 4-15 November 2013
Geneva, 28 June 2013
Geneva, 18 February - 1 March 2013
Geneva, 4-15 June 2012
Geneva, 17 February 2012
Geneva, 6 February 2012
Geneva, 10-21 October 2011
Geneva, 20 May 2011
Geneva, 17-28 January 2011
Geneva, 16 September 2010
Geneva, 19-30 April 2010
Geneva, 29 January 2010
Mar del Plata, 2-12 September 2009
Geneva, 22 May 2009
Geneva, 12-23 January 2009
Geneva, 12 September 2008
Geneva, 22 May 2008
Seoul, 14-25 January 2008
Geneva, 21 September 2007
Geneva, 16-27 April 2007
Geneva, 3 November 2006
Geneva, 17-28 July 2006
Geneva, 16-27 January 2006
Type of action
Any
Action
Comment
Information
With title containing all these words
Full search in ITU-T LSs Database
Total found:
125
Page Size:
10
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SG11-LS1
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00001.zip
]
LS on the new work item on ITU-T Q.SNICE-DLT-SA “Signalling architecture of distributed S-NICE based on DLT”
Approved on 2025-02-28
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-GEN-0072
Meeting:
Geneva, 3-14 March 2025
SG11-LS2
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00002.zip
]
LS on the new work item ITU-T Q.CPN-SA “Signalling architecture of computing power network”
Approved on 2025-02-28
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-WP3-0026
Meeting:
Geneva, 3-14 March 2025
SG11-LS3
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00003.zip
]
LS on the new work item ITU-T Q.NRS-DLT-SA “Signalling architecture for network resource sharing based on distributed ledger technology”
Approved on 2025-02-28
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-GEN-0076
Meeting:
Geneva, 3-14 March 2025
SG11-LS4
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00004.zip
]
LS on the new work item ITU-T TR.SA-IoTC “Signalling architecture of enhanced land-based core network to support IoT-NTN based real-time communication”
Approved on 2025-02-28
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-GEN-0077
Meeting:
Geneva, 3-14 March 2025
SG11-LS5
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00005.zip
]
LS on the new work item ITU-T Q.FMSC-SMSR-m “Session management signalling requirements of supporting mobility for fixed, mobile and satellite convergence in IMT-2020 networks and beyond”
Approved on 2025-02-28
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-WP1-0038
Meeting:
Geneva, 3-14 March 2025
SG11-LS6
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00006.zip
]
LS on cryptographic application registration procedure for QKDN
Approved on 2025-02-28
.
For action to:
All questions
For information to:
-
Deadline:
2025-11-01
Submitted as:
T25-SG13-250303-TD-WP4-0048
Meeting:
Geneva, 3-14 March 2025
SG11-LS7
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00007.zip
]
LS on work progress on quantum key distribution network (QKDN) in SG11
Approved on 2025-02-28
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-WP4-0051
Meeting:
Geneva, 3-14 March 2025
SG11-LS8
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00008.zip
]
LS/r on proposed new work item ITU-T M.cpii “Requirements of computing power identification for computing power networks interworking” (reply to SG2-LS2)
Approved on 2025-02-28
in response to
SG2-LS2
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-WP3-0027
Meeting:
Geneva, 3-14 March 2025
SG11-LS9
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00009.docx
]
LS/r on progress of CPN definition and CPN roadmap (reply to SG13-LS201)
Approved on 2025-02-28
in response to
SG13-LS201
.
For action to:
All questions
For information to:
-
Deadline:
-
Submitted as:
T25-SG13-250303-TD-WP3-0024
Meeting:
Geneva, 3-14 March 2025
SG11-LS10
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00010.zip
]
LS on draft Recommendation ITU-T Q.4144 (ex Q.CSO) and draft Supplement ITU-T Q.Suppl.78 (ex Q.Suppl.heter_SI)
Approved on 2025-02-28
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-GEN-0074
Meeting:
Geneva, 3-14 March 2025
SG11-LS11
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00011.zip
]
LS on the new work item ITU-T Q.5006-rev “Signalling requirements for hierarchical network slicing service”
Approved on 2025-02-28
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-GEN-0075
Meeting:
Geneva, 3-14 March 2025
SG11-LS12
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00012.zip
]
LS on consent of draft Recommendation ITU-T Q.3722 (ex Q.BNG-CA) “Signalling requirements of virtual Broadband Network Gateway(vBNG) for cloud access”
Approved on 2025-02-28
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-GEN-0073
Meeting:
Geneva, 3-14 March 2025
SG11-LS13
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00013.zip
]
LS on initiation of new work items related research on BNG in SG11
Approved on 2025-02-28
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-GEN-0071
Meeting:
Geneva, 3-14 March 2025
SG11-LS14
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00014.zip
]
LS on the initiation of two new work items ITU-T Q.SPDDP and ITU-T QSTR.SP-NEG related to IMT-2020 network and beyond
Approved on 2025-02-28
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-GEN-0070
Meeting:
Geneva, 3-14 March 2025
SG11-LS15
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00015.zip
]
LS on initiation of draft new Technical Report ITU-T QSTR.SP-IMT2030 “Signalling and Protocol Consideration on IMT-2030 networks”
Approved on 2025-02-28
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-GEN-0069
Meeting:
Geneva, 3-14 March 2025
SG11-LS16
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00016.docx
]
LS/r on invitation to provide inputs to the “Machine learning standardization roadmap” (reply to JCA-ML-LS12)
Approved on 2025-02-28
in response to
JCA-ML-LS12
.
For action to:
All questions
For information to:
All questions
Deadline:
2025-11-10
Submitted as:
T25-SG13-250303-TD-WP1-0033
Meeting:
Geneva, 3-14 March 2025
SG11-LS17
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00017.docx
]
LS/r on invitation to provide inputs to the “Glossary of terms and definitions for machine learning” (reply to JCA-ML-LS10)
Approved on 2025-02-28
in response to
JCA-ML-LS10
.
For action to:
-
For information to:
All questions; All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-WP1-0034
Meeting:
Geneva, 3-14 March 2025
SG11-LS18
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00018.zip
]
LS on the initiation of new work item ITU-T Q.IEC-EEMA-LCM
Approved on 2025-02-28
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-WP2-0018
Meeting:
Geneva, 3-14 March 2025
SG11-LS19
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00019.zip
]
LS on the initiation of new work item ITU-T Q.det-IWC
Approved on 2025-02-28
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-WP4-0050
Meeting:
Geneva, 3-14 March 2025
SG11-LS20
- [
https://www.itu.int/ifa/t/2025/ls/sg11/sp18-sg11-oLS-00020.zip
]
LS/r on ITU-T Q.CED "Monitoring parameters for cloud-edge-device collaboration system" (reply to SG13-LS239)
Approved on 2025-02-28
in response to
SG13-LS239
.
For action to:
-
For information to:
All questions
Deadline:
-
Submitted as:
T25-SG13-250303-TD-WP2-0017
Meeting:
Geneva, 3-14 March 2025
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