ITU-T Liaison Statements

Incoming liaison statements allocated to an ITU-T Study Group meeting (*)

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ITU-D Q2/2-SG2RGQ/95-E - [https://www.itu.int/ifa/t/2025/ls/itu-dq2_2/sp18-itu-dq2_2-00011.docx]

LS/r on matters related to EMF (reply to SG5-LS84)

Approved on 2026-10-15 in response to SG5-LS84.

For action to:	Q3/5
For information to:	-
Deadline:	-
Submitted as:	T25-SG05-261020-TD-GEN-1493
Meeting:	Geneva, 20-29 October 2026

SG20-LS185 - [https://www.itu.int/ifa/t/2025/ls/sg20/sp18-sg20-00185.docx]

LS on the proposed Focus Group on Artificial Intelligence + Energy (FG-AI+E): concerns regarding overlap with the work of SG20 and FG-AI4SSC, and proposed amendments to the draft Terms of Reference

Approved on 2026-10-13.

For action to:	All questions
For information to:	-
Deadline:	2026-10-29
Submitted as:	T25-SG05-261020-TD-GEN-1494
Meeting:	Geneva, 20-29 October 2026

IEC TC 22/SC 22H-LS1 - [https://www.itu.int/ifa/t/2025/ls/iectc22_sc22h/sp18-iectc22_sc22h-00001.docx]

LS/r on Comments from IEC TC22/SC22H on ITU-T L.ups_framework “Management system framework of UPS with Li-ion batteries for infrastructure” (reply to SG5-LS56)

Approved on 2026-10-05 in response to SG5-LS56.

For action to:	Q11/5
For information to:	-
Deadline:	-
Submitted as:	T25-SG05-261020-TD-GEN-1472
Meeting:	Geneva, 20-29 October 2026

ETSI TC EE-EE(26)000007r1 - [https://www.itu.int/ifa/t/2025/ls/etsitcee/sp18-etsitcee-00066.pdf]

Ls/r on proposal of joint activities on Simplified assessments of the GHG emissions impact of the use of ICT solutions (reply to SG5-LS129)

Approved on 2026-10-05 in response to SG5-LS129.

For action to:	Q9/5
For information to:	-
Deadline:	-
Submitted as:	T25-SG05-261020-TD-GEN-1505
Meeting:	Geneva, 20-29 October 2026

TSAG-LS29 - [https://www.itu.int/ifa/t/2025/ls/tsag/sp18-tsag-00029.docx]

LS on lead study group concept and coordination mechanisms

Approved on 2026-09-21.

For action to:	All questions
For information to:	-
Deadline:	2027-01-05
Submitted as:	T25-SG05-261020-TD-GEN-1478
Meeting:	Geneva, 20-29 October 2026

SG2-LS109 - [https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-00109.zip]

LS/r on the ongoing work on draft Recommendation L.CP on Standardized terminology for Computing power and Electric power Coordination” (reply to SG5-LS62)

Approved on 2026-09-18 in response to SG5-LS62.

For action to:	Q8/5
For information to:	-
Deadline:	2027-02-01
Submitted as:	T25-SG05-261020-TD-GEN-1449
Meeting:	Geneva, 20-29 October 2026

SG2-LS113 - [https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-00113.zip]

LS on initiation of a new work item ITU-T M.ecms-ir "Interface for energy consumption management in IMT-2020 networks and beyond - Protocol neutral requirements"

Approved on 2026-09-18.

For action to:	-
For information to:	Q6/5
Deadline:	-
Submitted as:	T25-SG05-261020-TD-GEN-1450
Meeting:	Geneva, 20-29 October 2026

SG2-LS115 - [https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-00115.docx]

LS/r on the comments on the terms and their definitions developed by ITU-T SG5 (reply to SCV-LS81, SCV-LS82, SCV-LS84 and SCV-LS85)

Approved on 2026-09-18 in response to SCV-LS81, SCV-LS82, SCV-LS84, SCV-LS85.

For action to:	Q6/5; Q7/5; Q8/5; Q9/5
For information to:	-
Deadline:	-
Submitted as:	T25-SG05-261020-TD-GEN-1451
Meeting:	Geneva, 20-29 October 2026

SG2-LS130 - [https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-00130.docx]

LS on SCV activity in SG2

Approved on 2026-09-18.

For action to:	Q8/5
For information to:	-
Deadline:	-
Submitted as:	T25-SG05-261020-TD-GEN-1454
Meeting:	Geneva, 20-29 October 2026

SG2-LS131 - [https://www.itu.int/ifa/t/2025/ls/sg2/sp18-sg2-00131.docx]

LS on Telecommunication Management and OAM Project Plan

Approved on 2026-09-18.

For action to:	All questions
For information to:	-
Deadline:	2026-02-01
Submitted as:	T25-SG05-261020-TD-GEN-1455
Meeting:	Geneva, 20-29 October 2026

FG-AI4SSC-LS1 - [https://www.itu.int/ifa/t/2025/ls/fg-ai4ssc/sp18-fg-ai4ssc-00001.docx]

LS on the results of the first meeting of the ITU-T Focus Group on AI for Smart Sustainable Cities and Communities (FG-AI4SSC) and invitation for participation and collaboration

Approved on 2026-09-11.

For action to:	All questions
For information to:	-
Deadline:	-
Submitted as:	T25-SG05-261020-TD-GEN-1439
Meeting:	Geneva, 20-29 October 2026

SCV-LS134 - [https://www.itu.int/ifa/t/2025/ls/scv/sp18-scv-00134.docx]

LS/r on comments on the definitions of the terms “deployment environment type (DET)” and “BS cell cluster” developed by ITU-T Study Group 5 (reply to ITU-T SG5-LS63 and ITU-T SG5-LS58)

Approved on 2026-08-27 in response to SG5-LS58, SG5-LS63.

For action to:	Q3/5; Q6/5; Q8/5
For information to:	-
Deadline:	-
Submitted as:	T25-SG05-261020-TD-GEN-1440
Meeting:	Geneva, 20-29 October 2026

SCV-LS140 - [https://www.itu.int/ifa/t/2025/ls/scv/sp18-scv-00140.docx]

LS/r on comments on the definition of the terms “data centre water quota”, “service availability”, “service volume”, “simplified life cycle assessment”, “software energy saving”, “software feature”, “system docking” and “untwisted single-pair cable” developed by ITU-T Study Group 5 (reply to ITU-T SG5-LS58)