Committed to connecting the world
Advanced Search
ITU
General Secretariat
Radiocommunication
Standardization
About ITU-T
Events
All Groups
Standards
Resources
BSG
Study Groups
Regional Presence
Join Us
MyWorkspace
Development
News
Members' Zone
Join ITU
SG21 - Technologies for multimedia, content delivery and cable television
Rollup Image
You are here
ITU
>
Home
>
ITU-T
>
Study Groups
>
Study Period 2025 - 2028
>
SG21
Share
MyWorkspace
Contact
About SG21
Mandate and lead roles
Structure
Management Team
Questions under study and Rapporteurs
Representatives and other roles
Editors
Approved deliverables
Recommendations
Technical papers
Implementers' Guides
Focus Groups
Handbooks
Selected workshops
Page Content 20
Save language (?)
Disclaimer & Feedback
Meeting in Focus
Page Content 2
Next SG21 meeting
(Geneva, 6-17 October 2025)
Announcement
Registration
Deadline for Fellowships
25 August 2025
|
Form
Deadline for Contributions
23 September 2025
Meeting Room Allocation
Mobile friendly version
Virtual Sessions
(for registered delegates only) |
Guide
)
Webcast [
Live
|
Archive
]
Workshops:
ITU-WHO Stakeholders' Consultation on the Make Listening Safe Initiative
Geneva
, Switzerland, 1-3 July 2025
Previous workshops
Executive summary of SG21 meetings
2025-01
Meeting Documents
Page Content 3
Recently posted
|
Search
Documents:
2025-07: [
All docs
-
Cs
-
TDs
]
2025-10: [
All docs
-
Cs
-
TDs
-
LS In
-
LS Out
]
Informal FTP area
(IFA) |
RGM SharePoint
Direct Document Posting
(to submit Contributions)
Document Templates
Author's Guide
All meetings
Current Work Items
Page Content 4
Work programme
Recommendations under AAP
Recommendations under TAP
Other Meetings
Page Content 5
Rapporteur group meetings
Page Content 17
Page Content 16
Page Content 9
Page Content 10
Page Content 18
Page Content 19
Tools
Documentation
News
Page Content 11
Create/manage ITU account
(TIES & Guest)
ITU-T SG21 SharePoint collaboration site
Informal FTP area (IFA) and mailing lists
Delegate resources
Electronic Working Methods
(EWM)
Document sync tool
ITU-T Recommendation number allocation list
ITU-T Recommendation series structure
Standards Q&A
Page Content 12
Circulars related to SG21
Collective letters
All contributions
Reports
Liaison statements database:
By meeting
-
All
View documents in Directory Tree Mode
Search ITU documents
Page Content 13
Page Content 15
Special Topics
Related Groups
Past Periods
Page Content 6
Accessibility and multimedia standardization
E-health:
ITU-T Standardization roadmap
/
Standardization framework
/
Safe Listening
AI for health
(FG-AI4H)
ITU-T database of national authorities for T.35 terminal provider codes
ITU-T database for test signals
Content delivery:
IPTV:
ITU-T IPTV standards roadmap
/
Challenges
Digital Signage:
ITU-T Digital Signage roadmap
Multimedia Content Delivery Networks:
Roadmap
Video coding:
Joint Video Experts Team
(JVET)
Video
Coding
Experts Group
(VCEG)
Call for proposals on the
coding of medical waveform data
Updated
Intelligent transportation:
SG16 work on intelligent transport systems
Page Content 7
Intersector Rapporteur Group on Audiovisual Media Accessibility
(IRG-AVA)
Joint Coordination Activity on Internet of Things and Smart Cities and Communities
(JCA-IoT and SC&C)
Collaboration on ITS Communication Standards
(CITS)
ITU-R Study Group 6
(Broadcasting Service)
Video
Quality
Experts Group
(VQEG)
Intersector Rapporteur Group Audiovisual Quality Assessment
(IRG-AVQA)
ISO/IEC JTC1/SC29
"Coding of audio, picture, multimedia and hypermedia information"
ISO/IEC JTC1/SC35
"User interfaces"
Page Content 8
ITU-T Study Group 9
Study Period 2022-2024
Study Period 2017-2021
Study Period 2013-2016
Study Period 2009-2012
Study Period 2005-2008
Study Period 2001-2004
Study Period 1997-2000
ITU-T Study Group 16
Study Period 2022-2024
Study Period 2017-2021
Study Period 2013-2016
Study Period 2009-2012
Study Period 2005-2008
Study Period 2001-2004
Study Period 1997-2000
ITU-T Study Group 8
Study Period 1997-2000
Page Content 14
Follow us
Twitter
Facebook
YouTube
Flickr
Linkedin
Instagram
Soundcloud
Podcasts
Spotify
Spreaker
TikTok
