Committed to connecting the world
ITU
General Secretariat
Radiocommunication
Standardization
About ITU-T
Events
All Groups
Standards
Resources
BSG
Study Groups
Regional Presence
Join Us
MyWorkspace
Development
ITU Telecom
Members' Zone
Join ITU
ITU-T Recommendations
You are here
Home
>
ITU-T Recommendations
Share
Search by number:
Others:
Content search
Advanced search
Provisional name
Equivalent number
Formal description
Study Groups tree view
All SGs
TSAG
Study Group 2
Study Group 3
Study Group 5
Study Group 9
Study Group 11
Study Group 12
Study Group 13
Study Group 15
Study Group 16
Study Group 17
Study Group 20
ITU-T Recommendations by series
Select a series of Recommendations
A series: Organization of the work of ITU-T
D series: Tariff and accounting principles and international telecommunication/ICT economic and policy issues
E series: Overall network operation, telephone service, service operation and human factors
F series: Non-telephone telecommunication services
G series: Transmission systems and media, digital systems and networks
H series: Audiovisual and multimedia systems
I series: Integrated services digital network
J series: Cable networks and transmission of television, sound programme and other multimedia signals
K series: Protection against interference
L series: Environment and ICTs, climate change, e-waste, energy efficiency; construction, installation and protection of cables and other elements of outside plant
M series: Telecommunication management, including TMN and network maintenance
N series: Maintenance: international sound programme and television-transmission circuits
O series: Specifications of measuring equipment
P series: Telephone transmission quality, telephone installations, local line networks
Q series: Switching and signalling, and associated measurements and tests
R series: Telegraph transmission
S series: Telegraph services terminal equipment
T series: Terminals for telematic services
U series: Telegraph switching
V series: Data communication over the telephone network
X series: Data networks, open system communications and security
Y series: Global information infrastructure, Internet protocol aspects, next-generation networks, Internet of Things and smart cities
Z series: Languages and general software aspects for telecommunication systems
Y series
: Global information infrastructure, Internet protocol aspects, next-generation networks, Internet of Things and smart cities
Y.100-Y.999
: Global information infrastructure
Y.1000-Y.1999
: Internet protocol aspects
Y.2000-Y.2999
: Next Generation Networks
Y.3000-Y.3499
: Future networks
Y.3500-Y.3599
: Cloud Computing
Y.3600-Y.3799
: Big Data
Y.3800-Y.3999
: Quantum key distribution networks
Y.4000-Y.4999
: Internet of things and smart cities and communities
Y supplements
: Supplements to the Y-series Recommendations
Follow us
Twitter
Facebook
YouTube
Flickr
Linkedin
Instagram
Soundcloud
Podcasts
Spotify
Spreaker
TikTok
