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ITU-T A-Series Recommendations
ORGANIZATION OF THE WORK OF ITU-T
Supplements to the Series A Recommendations A supplements
 
ITU-T D-Series Recommendations
GENERAL TARIFF PRINCIPLES
Terms and definitions D.0-D.0
General tariff principles D.1-D.299
   Private leased telecommunication facilities    D.1-D.9
   Tariff principles applying to data communication services over dedicated public data networks    D.10-D.39
   Charging and accounting in the international public telegram service    D.40-D.44
   Charging and accounting in the international telemessage service    D.45-D.49
   Principles applicable to GII-Internet    D.50-D.59
   Charging and accounting in the international telex service    D.60-D.69
   Charging and accounting in the international facsimile service    D.70-D.75
   Charging and accounting in the international videotex service    D.76-D.79
   Charging and accounting in the international phototelegraph service    D.80-D.89
   Charging and accounting in the mobile services    D.90-D.99
   Charging and accounting in the international telephone service    D.100-D.159
   Drawing up and exchange of international telephone and telex accounts    D.160-D.179
   International sound- and television-programme transmissions    D.180-D.184
   Charging and accounting for international satellite services    D.185-D.189
   Transmission of monthly international accounting information    D.190-D.191
   Service and privilege telecommunications    D.192-D.195
   Settlement of international telecommunication balances of accounts    D.196-D.209
   Charging and accounting principles for international telecommunication services provided over the ISDN    D.210-D.269
   Charging and accounting principles for next generation networks (NGN)    D.270-D.279
   Charging and accounting principles for universal personal telecommunication    D.280-D.284
   Charging and accounting principles for intelligent network supported services    D.285-D.299
Recommendations for regional application D.300-D.699
   Recommendations applicable in Europe and the Mediterranean Basin    D.300-D.399
   Recommendations applicable in Latin America    D.400-D.499
   Recommendations applicable in Asia and Oceania    D.500-D.599
   Recommendations applicable to the African Region    D.600-D.699
Supplements to the Series D Recommendations D supplements
 
ITU-T E-Series Recommendations
OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS
International operation E.100-E.229
   Definitions    E.100-E.103
   General provisions concerning Administrations    E.104-E.119
   General provisions concerning users    E.120-E.139
   Operation of international telephone services    E.140-E.159
   Numbering plan of the international telephone service    E.160-E.169
   International routing plan    E.170-E.179
   Tones in national signalling systems    E.180-E.189
   Numbering plan of the international telephone service    E.190-E.199
   Maritime mobile service and public land mobile service    E.200-E.229
Operational provisions relating to charging and accounting in the international telephone service E.230-E.299
   Charging in the international telephone service    E.230-E.249
   Measuring and recording call durations for accounting purposes    E.260-E.269
Utilization of the international telephone network for non-telephony applications E.300-E.329
   General    E.300-E.319
   Phototelegraphy    E.320-E.329
ISDN provisions concerning users E.330-E.349
International routing plan E.350-E.399
Network management E.400-E.489
   International service statistics    E.400-E.404
   International network management    E.405-E.419
   Checking the quality of the international telephone service    E.420-E.489
Traffic engineering E.490-E.799
   Measurement and recording of traffic    E.490-E.505
   Forecasting of traffic    E.506-E.509
   Determination of the number of circuits in manual operation    E.510-E.519
   Determination of the number of circuits in automatic and semi-automatic operation    E.520-E.539
   Grade of service    E.540-E.599
   Definitions    E.600-E.649
   Traffic engineering for IP-networks    E.650-E.699
   ISDN traffic engineering    E.700-E.749
   Mobile network traffic engineering    E.750-E.799
Quality of telecommunication services: concepts, models, objectives and dependability planning E.800-E.899
   Terms and definitions related to the quality of telecommunication services    E.800-E.809
   Models for telecommunication services    E.810-E.844
   Objectives for quality of service and related concepts of telecommunication services    E.845-E.859
   Use of quality of service objectives for planning of telecommunication networks    E.860-E.879
   Field data collection and evaluation on the performance of equipment, networks and services    E.880-E.899
Other E.900-E.999
International operation E.1000-E.1999
   Numbering plan of the international telephone service    E.1100-E.1199
Network management E.4000-E.4999
   International network management    E.4100-E.4199
Supplements to the Series E Recommendations E supplements
   Supplements to the Series E Recommendations relating to the operations of the international service    E.100-E.400 supplements
   Supplements to the Series E Recommendations relating to telephone network management and traffic engineering    E.400-E.900 supplements
 
ITU-T F-Series Recommendations
NON-TELEPHONE TELECOMMUNICATION SERVICES
Telegraph service F.1-F.109
   Operating methods for the international public telegram service    F.1-F.19
   The gentex network    F.20-F.29
   Message switching    F.30-F.39
   The international telemessage service    F.40-F.58
   The international telex service    F.59-F.89
   Statistics and publications on international telegraph services    F.90-F.99
   Scheduled and leased communication services    F.100-F.104
   Phototelegraph service    F.105-F.109
Mobile service F.110-F.159
   Mobile services and multidestination satellite services    F.110-F.159
Telematic services F.160-F.399
   Public facsimile service    F.160-F.199
   Teletex service    F.200-F.299
   Videotex service    F.300-F.349
   General provisions for telematic services    F.350-F.399
Message handling services F.400-F.499
Directory services F.500-F.549
Document communication F.550-F.599
   Document communication    F.550-F.579
   Programming communication interfaces    F.580-F.599
Data transmission services F.600-F.699
Audiovisual services F.700-F.799
ISDN services F.800-F.849
Universal personal telecommunication F.850-F.899
Human factors F.900-F.999
Supplements to the Series F Recommendations F supplements
 
ITU-T G-Series Recommendations
TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS
International telephone connections and circuits G.100-G.199
   Transmission planning and the E-model    G.100-G.109
   General Recommendations on the transmission quality for an entire international telephone connection    G.110-G.119
   General characteristics of national systems forming part of international connections    G.120-G.129
   General characteristics of the 4-wire chain formed by the international circuits and national extension circuits    G.130-G.139
   General characteristics of the 4-wire chain of international circuits; international transit    G.140-G.149
   General characteristics of international telephone circuits and national extension circuits    G.150-G.159
   Apparatus associated with long-distance telephone circuits    G.160-G.169
   Transmission plan aspects of special circuits and connections using the international telephone connection network    G.170-G.179
   Protection and restoration of transmission systems    G.180-G.189
   Software tools for transmission systems    G.190-G.199
General characteristics common to all analogue carrier-transmission systems G.200-G.299
   Definitions and general considerations    G.210-G.219
   General Recommendations    G.220-G.229
   Translating equipment used on various carrier-transmission systems    G.230-G.239
   Utilization of groups, supergroups, etc.    G.240-G.299
Individual characteristics of international carrier telephone systems on metallic lines G.300-G.399
   Carrier telephone systems on unloaded symmetric cable pairs, providing groups or supergroups    G.320-G.329
   Carrier systems on 2.6/9.5 mm coaxial cable pairs    G.330-G.339
   Carrier systems on 1.2/4.4 mm coaxial cable pairs    G.340-G.349
   Additional Recommendations on cable systems    G.350-G.399
General characteristics of international carrier telephone systems on radio-relay or satellite links and interconnection with metallic lines G.400-G.449
   General Recommendations    G.400-G.419
   Interconnection of radio-relay links with carrier systems on metallic lines    G.420-G.429
   Hypothetical reference circuits    G.430-G.439
   Circuit noise    G.440-G.449
Coordination of radiotelephony and line telephony G.450-G.499
   Radiotelephone circuits    G.450-G.469
   Links with mobile stations    G.470-G.499
Transmission media and optical systems characteristics G.600-G.699
   General    G.600-G.609
   Symmetric cable pairs    G.610-G.619
   Land coaxial cable pairs    G.620-G.629
   Submarine cables    G.630-G.639
   Free space optical systems    G.640-G.649
   Optical fibre cables    G.650-G.659
   Characteristics of optical components and subsystems    G.660-G.679
   Characteristics of optical systems    G.680-G.699
Digital terminal equipments G.700-G.799
   General    G.700-G.709
   Coding of voice and audio signals    G.710-G.729
   Principal characteristics of primary multiplex equipment    G.730-G.739
   Principal characteristics of second order multiplex equipment    G.740-G.749
   Principal characteristics of higher order multiplex equipment    G.750-G.759
   Principal characteristics of transcoder and digital multiplication equipment    G.760-G.769
   Operations, administration and maintenance features of transmission equipment    G.770-G.779
   Principal characteristics of multiplexing equipment for the synchronous digital hierarchy    G.780-G.789
   Other terminal equipment    G.790-G.799
Digital networks G.800-G.899
   General aspects    G.800-G.809
   Design objectives for digital networks    G.810-G.819
   Quality and availability targets    G.820-G.829
   Network capabilities and functions    G.830-G.839
   SDH network characteristics    G.840-G.849
   Management of transport network    G.850-G.859
   SDH radio and satellite systems integration    G.860-G.869
   Optical transport networks    G.870-G.879
Digital sections and digital line system G.900-G.999
   General    G.900-G.909
   Parameters for optical fibre cable systems    G.910-G.919
   Digital sections at hierarchical bit rates based on a bit rate of 2048 kbit/s    G.920-G.929
   Digital line transmission systems on cable at non-hierarchical bit rates    G.930-G.939
   Digital line systems provided by FDM transmission bearers    G.940-G.949
   Digital line systems    G.950-G.959
   Digital section and digital transmission systems for customer access to ISDN    G.960-G.969
   Optical fibre submarine cable systems    G.970-G.979
   Optical line systems for local and access networks    G.980-G.989
   Access networks    G.990-G.999
Multimedia Quality of Service and performance – Generic and user-related aspects G.1000-G.1999
Transmission media characteristics G.6000-G.6999
Data over Transport – Generic aspects G.7000-G.7999
   General    G.7000-G.7099
   Transport network control aspects    G.7700-G.7799
Packet over Transport aspects G.8000-G.8999
   Ethernet over Transport aspects    G.8000-G.8099
   MPLS over Transport aspects    G.8100-G.8199
   Quality and availability targets    G.8200-G.8299
   Service Management    G.8600-G.8699
Access networks G.9000-G.9999
   In premises networks    G.9900-G.9999
Supplements to the Series G Recommendations G supplements
 
ITU-T H-Series Recommendations
AUDIOVISUAL AND MULTIMEDIA SYSTEMS
Characteristics of visual telephone systems H.100-H.199
Infrastructure of audiovisual services H.200-H.499
   General    H.200-H.219
   Transmission multiplexing and synchronization    H.220-H.229
   Systems aspects    H.230-H.239
   Communication procedures    H.240-H.259
   Coding of moving video    H.260-H.279
   Related systems aspects    H.280-H.299
   Systems and terminal equipment for audiovisual services    H.300-H.349
   Directory services architecture for audiovisual and multimedia services    H.350-H.359
   Quality of service architecture for audiovisual and multimedia services    H.360-H.369
   Supplementary services for multimedia    H.450-H.499
Mobility and Collaboration procedures H.500-H.599
   Overview of Mobility and Collaboration, definitions, protocols and procedures    H.500-H.509
   Mobility for H-Series multimedia systems and services    H.510-H.519
   Mobile multimedia collaboration applications and services    H.520-H.529
   Security for mobile multimedia systems and services    H.530-H.539
   Security for mobile multimedia collaboration applications and services    H.540-H.549
   Mobility interworking procedures    H.550-H.559
   Mobile multimedia collaboration inter-working procedures    H.560-H.569
Broadband, triple-play and advanced multimedia services H.600-H.699
   Broadband multimedia services over VDSL    H.610-H.619
   Advanced multimedia services and applications    H.620-H.629
   Ubiquitous sensor network applications and Internet of Things    H.640-H.649
IPTV multimedia services and applications for IPTV H.700-H.799
   General aspects    H.700-H.719
   IPTV terminal devices    H.720-H.729
   IPTV middleware    H.730-H.739
   IPTV application event handling    H.740-H.749
   IPTV metadata    H.750-H.759
   IPTV multimedia application frameworks    H.760-H.769
   IPTV service discovery up to consumption    H.770-H.779
   Digital Signage    H.780-H.789
Supplements to the Series H Recommendations H supplements
 
ITU-T I-Series Recommendations
INTEGRATED SERVICES DIGITAL NETWORK
General structure I.100-I.199
   Terminology    I.110-I.119
   Description of ISDNs    I.120-I.129
   General modelling methods    I.130-I.139
   Telecommunication network and service attributes    I.140-I.149
   General description of asynchronous transfer mode    I.150-I.199
Service capabilities I.200-I.299
   Scope    I.200-I.209
   General aspects of services in ISDN    I.210-I.219
   Common aspects of services in the ISDN    I.220-I.229
   Bearer services supported by an ISDN    I.230-I.239
   Teleservices supported by an ISDN    I.240-I.249
   Supplementary services in ISDN    I.250-I.259
Overall network aspects and functions I.300-I.399
   Network functional principles    I.310-I.319
   Reference models    I.320-I.329
   Numbering, addressing and routing    I.330-I.339
   Connection types    I.340-I.349
   Performance objectives    I.350-I.359
   Protocol layer requirements    I.360-I.369
   General network requirements and functions    I.370-I.399
ISDN user-network interfaces I.400-I.499
   Application of I-series Recommendations to ISDN user-network interfaces    I.410-I.429
   Layer 1 Recommendations    I.430-I.439
   Layer 2 Recommendations    I.440-I.449
   Layer 3 Recommendations    I.450-I.459
   Multiplexing, rate adaption and support of existing interfaces    I.460-I.469
   Aspects of ISDN affecting terminal requirements    I.470-I.489
Internetwork interfaces I.500-I.599
Maintenance principles I.600-I.699
B-ISDN equipment aspects I.700-I.799
   ATM equipment    I.730-I.739
   Transport functions    I.740-I.749
   Management of ATM equipment    I.750-I.759
   Multiplexing aspects    I.760-I.769
Supplements to the Series I Recommendations I supplements
 
ITU-T J-Series Recommendations
CABLE NETWORKS AND TRANSMISSION OF TELEVISION, SOUND PROGRAMME AND OTHER MULTIMEDIA SIGNALS
   General Recommendations    J.1-J.9
   General specifications for analogue sound-programme transmission    J.10-J.19
   Performance characteristics of analogue sound-programme circuits    J.20-J.29
   Equipment and lines used for analogue sound-programme circuits    J.30-J.39
   Digital encoders for analogue sound-programme signals    J.40-J.49
   Digital transmission of sound-programme signals    J.50-J.59
   Circuits for analogue television transmission    J.60-J.69
   Analogue television transmission over metallic lines and interconnection with radio-relay links    J.70-J.79
   Digital transmission of television signals    J.80-J.89
   Ancillary digital services for television transmission    J.90-J.99
   Operational requirements and methods for television transmission    J.100-J.109
   Interactive systems for digital television distribution    J.110-J.129
   Transport of MPEG-2 signals on packetized networks    J.130-J.139
   Measurement of the quality of service    J.140-J.149
   Digital television distribution through local subscriber networks    J.150-J.159
   IPCablecom    J.160-J.179
   Digital transmission of television signals    J.180-J.189
   Cable modems    J.190-J.199
   Application for Interactive Digital Television    J.200-J.209
   Interactive systems for digital television distribution    J.210-J.229
   Transport of MPEG-2 signals on packetized networks    J.230-J.239
   Measurement of the quality of service    J.240-J.249
   Digital television distribution through local subscriber networks    J.250-J.259
   IPCablecom    J.260-J.279
   Digital transmission of television signals    J.280-J.289
   Cable modems    J.290-J.299
   Measurement of the quality of service    J.340-J.349
   IPCablecom    J.360-J.379
   Digital transmission of television signals    J.380-J.389
   IPCablecom    J.460-J.479
   Transport of Large Screen Digital Imagery    J.600-J.699
   Secondary distribution of IPTV services    J.700-J.799
   Multimedia over IP in cable    J.800-J.899
   Transmission of 3-D TV services    J.900-J.999
   Conditional access and protection    J.1000-J.1099
   Switched digital video over cable networks    J.1100-J.1119
Supplements to the Series J Recommendations J supplements
 
ITU-T K-Series Recommendations
PROTECTION AGAINST INTERFERENCE
 
ITU-T L-Series Recommendations
CONSTRUCTION, INSTALLATION AND PROTECTION OF CABLES AND OTHER ELEMENTS OF OUTSIDE PLANT
 
ITU-T M-Series Recommendations
TELECOMMUNICATION MANAGEMENT, INCLUDING TMN AND NETWORK MAINTENANCE
   Introduction and general principles of maintenance and maintenance organization    M.10-M.299
   International transmission systems    M.300-M.559
   International telephone circuits    M.560-M.759
   Common channel signalling systems    M.760-M.799
   International telegraph systems and phototelegraph transmission    M.800-M.899
   International leased group and supergroup links    M.900-M.999
   International leased circuits    M.1000-M.1099
   Mobile telecommunication systems and services    M.1100-M.1199
   International public telephone network    M.1200-M.1299
   International data transmission systems    M.1300-M.1399
   Designations and information exchange    M.1400-M.1999
   International transport network    M.2000-M.2999
   Telecommunications management network    M.3000-M.3599
   Integrated services digital networks    M.3600-M.3999
   Common channel signalling systems    M.4000-M.4999
Supplements to the M-series Recommendations M supplements
 
ITU-T N-Series Recommendations
MAINTENANCE: INTERNATIONAL SOUND PROGRAMME AND TELEVISION TRANSMISSION CIRCUITS
   International sound-programme transmission    N.1-N.49
   International television transmission    N.50-N.79
   International videoconference transmission    N.80-N.99
Supplements to the Series N Recommendations N supplements
 
ITU-T O-Series Recommendations
SPECIFICATIONS OF MEASURING EQUIPMENT
   General    O.1-O.9
   Maintenance access    O.10-O.19
   Automatic and semi-automatic measuring systems    O.20-O.39
   Equipment for the measurement of analogue parameters    O.40-O.129
   Equipment for the measurement of digital and analogue/digital parameters    O.130-O.199
   Equipment for the measurement of optical channel parameters    O.200-O.209
   Equipment to perform measurements on IP networks    O.210-O.219
   Equipment to perform measurements on leased-circuit services    O.220-O.229
Supplements to the Series O Recommendations O supplements
 
ITU-T P-Series Recommendations
TERMINALS AND SUBJECTIVE AND OBJECTIVE ASSESSMENT METHODS
   Vocabulary and effects of transmission parameters on customer opinion of transmission quality    P.10-P.19
   Voice terminal characteristics    P.30-P.39
   Reference systems    P.40-P.49
   Objective measuring apparatus    P.50-P.59
   Objective electro-acoustical measurements    P.60-P.69
   Measurements related to speech loudness    P.70-P.79
   Methods for objective and subjective assessment of speech quality    P.80-P.89
   Voice terminal characteristics    P.300-P.399
   Objective measuring apparatus    P.500-P.599
   Methods for objective and subjective assessment of speech quality    P.800-P.899
   Audiovisual quality in multimedia services    P.900-P.999
   Transmission performance and QoS aspects of IP end-points    P.1000-P.1099
   Communications involving vehicles    P.1100-P.1199
   Models and tools for quality assessment of streamed media    P.1200-P.1299
   Telemeeting assessment    P.1300-P.1399
   Statistical analysis, evaluation and reporting guidelines of quality measurements    P.1400-P.1499
Supplements to the Series P Recommendations P supplements
 
ITU-T Q-Series Recommendations
SWITCHING AND SIGNALLING
Signalling in the international manual service Q.1-Q.3
International automatic and semi-automatic working Q.4-Q.59
   Basic Recommendations    Q.4-Q.9
   Numbering plan and dialling procedures in the international service    Q.10-Q.11
   Routing plan for international service    Q.12-Q.19
   General Recommendations relative to signalling and switching systems (national or international)    Q.20-Q.34
   Tones for use in national signalling systems    Q.35-Q.39
   General characteristics for international telephone connections and circuits    Q.40-Q.47
   Signalling for satellite systems    Q.48-Q.49
   Signalling for circuit multiplication equipment    Q.50-Q.59
Functions and information flows for services in the ISDN Q.60-Q.99
   Methodology    Q.60-Q.67
   Basic services    Q.68-Q.79
   Supplementary services    Q.80-Q.99
Clauses applicable to ITU-T standard systems Q.100-Q.119
   General clauses    Q.100-Q.109
   Transmission clauses for signalling    Q.110-Q.114
   Logic and protocols for the control of signal processing network elements and functions    Q.115-Q.115
   Abnormal conditions    Q.116-Q.119
Specifications of Signalling Systems No. 4, 5, 6, R1 and R2 Q.120-Q.499
Digital exchanges Q.500-Q.599
   Introduction and field of application    Q.500-Q.509
   Exchange interfaces, functions and connections    Q.510-Q.539
   Design objectives and measurement    Q.540-Q.549
   Transmission characteristics    Q.550-Q.559
Interworking of Signalling Systems Q.600-Q.699
   General considerations    Q.600-Q.609
   Logic procedures    Q.610-Q.697
   Interworking of Signalling Systems No. 7 and No. 6    Q.698-Q.698
   Interworking between Digital Subscriber Signalling System No. 1 and Signalling System No. 7    Q.699-Q.699
Specifications of Signalling System No. 7 Q.700-Q.799
   General    Q.700-Q.700
   Message transfer part (MTP)    Q.701-Q.710
   Signalling connection control part (SCCP)    Q.711-Q.719
   Telephone user part (TUP)    Q.720-Q.729
   ISDN supplementary services    Q.730-Q.739
   Data user part    Q.740-Q.749
   Signalling System No. 7 management    Q.750-Q.759
   ISDN user part    Q.760-Q.769
   Transaction capabilities application part    Q.770-Q.779
   Test specification    Q.780-Q.799
Q3 interface Q.800-Q.849
Digital subscriber Signalling System No. 1 Q.850-Q.999
   General    Q.850-Q.919
   Data link layer    Q.920-Q.929
   Network layer    Q.930-Q.939
   User-network management    Q.940-Q.949
   Stage 3 description for supplementary services using DSS1    Q.950-Q.959
Public Land Mobile Network Q.1000-Q.1099
   General    Q.1000-Q.1029
   Interworking with ISDN and PSTN    Q.1030-Q.1049
   Mobile Application Part    Q.1050-Q.1059
   Digital PLMN user-network interfaces    Q.1060-Q.1069
Interworking with satellite mobile systems Q.1100-Q.1199
   Interworking with Standard-A INMARSAT system    Q.1100-Q.1109
   Interworking with Standard-B INMARSAT system    Q.1110-Q.1149
   Interworking with the INMARSAT aeronautical mobile-satellite system    Q.1150-Q.1199
Intelligent Network Q.1200-Q.1699
Signalling requirements and protocols for IMT-2000 Q.1700-Q.1799
Specifications of signalling related to Bearer Independent Call Control (BICC) Q.1900-Q.1999
Broadband ISDN Q.2000-Q.2999
   General aspects    Q.2000-Q.2099
   Signalling ATM adaptation layer (SAAL)    Q.2100-Q.2199
   Signalling network protocols    Q.2200-Q.2299
   Common aspects of B-ISDN application protocols for access signalling and network signalling and interworking    Q.2600-Q.2699
   B-ISDN application protocols for the network signalling    Q.2700-Q.2899
   B-ISDN application protocols for access signalling    Q.2900-Q.2999
Signalling requirements and protocols for the NGN Q.3000-Q.3999
   General    Q.3000-Q.3029
   Network signalling and control functional architecture    Q.3030-Q.3099
   Network data organization within the NGN    Q.3100-Q.3129
   Bearer control signalling    Q.3130-Q.3179
   Signalling and control requirements and protocols to support attachment in NGN environments    Q.3200-Q.3249
   Resource control protocols    Q.3300-Q.3369
   Service and session control protocols    Q.3400-Q.3499
   Service and session control protocols – supplementary services    Q.3600-Q.3649
   NGN applications    Q.3700-Q.3849
   Testing for next generation networks    Q.3900-Q.3999
Supplements to the Series Q Recommendations Q supplements
 
ITU-T R-Series Recommendations
TELEGRAPH TRANSMISSION
   Telegraph distortion    R.1-R.19
   Voice-frequency telegraphy    R.20-R.39
   Special cases of alternating current telegraphy    R.40-R.49
   Transmission quality    R.50-R.59
   Correction of signals    R.60-R.69
   Telegraph maintenance    R.70-R.99
   Time-division multiplexing    R.100-R.119
   Transmission quality above 50 bauds    R.120-R.139
   Definitions    R.140-R.149
   Availability and reliability of international telegraph circuits    R.150-R.159
 
ITU-T S-Series Recommendations
TELEGRAPH SERVICES TERMINAL EQUIPMENT
   Start-stop terminals    S.1-S.139
   Definitions    S.140-S.199
Supplements to the Series S Recommendations S supplements
 
ITU-T T-Series Recommendations
TERMINALS FOR TELEMATIC SERVICES
   Facsimile – Framework    T.0-T.19
   Still-image compression – Test charts    T.20-T.29
   Facsimile – Group 3 protocols    T.30-T.39
   Colour representation    T.40-T.49
   Character coding    T.50-T.59
   Facsimile – Group 4 protocols    T.60-T.69
   Telematic services – Framework    T.70-T.79
   Still-image compression – JPEG-1, Bi-level and JBIG    T.80-T.89
   Telematic services – ISDN Terminals and protocols    T.90-T.99
   Videotext – Framework    T.100-T.109
   Data protocols for multimedia conferencing    T.120-T.149
   Telewriting    T.150-T.159
   Multimedia and hypermedia framework    T.170-T.189
   Cooperative document handling    T.190-T.199
   Telematic services – Interworking    T.300-T.399
   Open document architecture    T.400-T.429
   Document transfer and manipulation    T.430-T.449
   Document application profile    T.500-T.509
   Communication application profile    T.510-T.559
   Telematic services – Equipment characteristics    T.560-T.649
   Still-image compression – JPEG 2000    T.800-T.829
   Still-image compression | JPEG XR    T.830-T.849
   Still-image compression – JPEG-1 extensions    T.850-T.899
Supplements to the Series T Recommendations T supplements
 
ITU-T U-Series Recommendations
TELEGRAPH SWITCHING
   General    U.1-U.10
   Specific signalling schemes and interworking between signalling systems    U.11-U.19
   Signalling over radio and multiplexed channels    U.20-U.29
   Gentex signalling    U.30-U.39
   Particular signalling facilities    U.40-U.59
   Radiotelex interworking    U.60-U.69
   Interworking between new information services and telex    U.70-U.79
   Telex store and forward    U.80-U.99
   Intex service    U.100-U.139
   Definitions    U.140-U.199
   The international telex service    U.200-U.299
Supplements to the Series U Recommendations U supplements
 
ITU-T V-Series Recommendations
DATA COMMUNICATION OVER THE TELEPHONE NETWORK
   General    V.1-V.9
   Interfaces and voiceband modems    V.10-V.34
   Wideband modems    V.35-V.39
   Error control    V.40-V.49
   Transmission quality and maintenance    V.50-V.59
   Simultaneous transmission of data and other signals    V.60-V.99
   Interworking with other networks    V.100-V.199
   Interface layer specifications for data communication    V.200-V.249
   Control procedures    V.250-V.299
   Modems on digital circuits    V.300-V.399
Supplements to the Series V Recommendations V supplements
 
ITU-T X-Series Recommendations
DATA NETWORKS, OPEN SYSTEM COMMUNICATIONS AND SECURITY
Public data networks X.1-X.199
   Services and facilities    X.1-X.19
   Interfaces    X.20-X.49
   Transmission, signalling and switching    X.50-X.89
   Network aspects    X.90-X.149
   Maintenance    X.150-X.179
   Administrative arrangements    X.180-X.199
Open Systems Interconnection X.200-X.299
   Model and notation    X.200-X.209
   Service definitions    X.210-X.219
   Connection-mode protocol specifications    X.220-X.229
   Connectionless-mode protocol specifications    X.230-X.239
   PICS proformas    X.240-X.259
   Protocol Identification    X.260-X.269
   Security Protocols    X.270-X.279
   Layer Managed Objects    X.280-X.289
   Conformance testing    X.290-X.299
Interworking between networks X.300-X.399
   General    X.300-X.349
   Satellite data transmission systems    X.350-X.369
   IP-based networks    X.370-X.379
Message Handling Systems X.400-X.499
Directory X.500-X.599
OSI networking and system aspects X.600-X.699
   Networking    X.600-X.629
   Efficiency    X.630-X.639
   Quality of service    X.640-X.649
   Naming, Addressing and Registration    X.650-X.679
   Abstract Syntax Notation One (ASN.1)    X.680-X.699
OSI management X.700-X.799
   Systems management framework and architecture    X.700-X.709
   Management communication service and protocol    X.710-X.719
   Structure of management information    X.720-X.729
   Management functions and ODMA functions    X.730-X.799
Security X.800-X.849
OSI applications X.850-X.899
   Commitment, concurrency and recovery    X.850-X.859
   Transaction processing    X.860-X.879
   Remote operations    X.880-X.889
   Generic applications of ASN.1    X.890-X.899
Open distributed processing X.900-X.999
Information and network security X.1000-X.1099
   General security aspects    X.1000-X.1029
   Network security    X.1030-X.1049
   Security management    X.1050-X.1069
   Telebiometrics    X.1080-X.1099
Secure applications and services X.1100-X.1199
   Multicast security    X.1100-X.1109
   Home network security    X.1110-X.1119
   Mobile security    X.1120-X.1139
   Web security    X.1140-X.1149
   Security protocols    X.1150-X.1159
   Peer-to-peer security    X.1160-X.1169
   Networked ID security    X.1170-X.1179
   IPTV security    X.1180-X.1199
Cyberspace security X.1200-X.1299
   Cybersecurity    X.1200-X.1229
   Countering spam    X.1230-X.1249
   Identity management    X.1250-X.1279
Secure applications and services X.1300-X.1399
   Emergency communications    X.1300-X.1309
   Ubiquitous sensor network security    X.1310-X.1339
Cybersecurity information exchange X.1500-X.1599
   Overview of cybersecurity    X.1500-X.1519
   Vulnerability/state exchange    X.1520-X.1539
   Event/incident/heuristics exchange    X.1540-X.1549
   Exchange of policies    X.1550-X.1559
   Heuristics and information request    X.1560-X.1569
   Identification and discovery    X.1570-X.1579
   Assured exchange    X.1580-X.1589
Supplements to the Series X Recommendations X supplements
 
ITU-T Y-Series Recommendations
GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS
Global information infrastructure Y.100-Y.999
   General    Y.100-Y.199
   Services, applications and middleware    Y.200-Y.299
   Network aspects    Y.300-Y.399
   Interfaces and protocols    Y.400-Y.499
   Numbering, addressing and naming    Y.500-Y.599
   Operation, administration and maintenance    Y.600-Y.699
   Security    Y.700-Y.799
   Performances    Y.800-Y.899
Internet protocol aspects Y.1000-Y.1999
   General    Y.1000-Y.1099
   Services and applications    Y.1100-Y.1199
   Architecture, access, network capabilities and resource management    Y.1200-Y.1299
   Transport    Y.1300-Y.1399
   Interworking    Y.1400-Y.1499
   Quality of service and network performance    Y.1500-Y.1599
   Signalling    Y.1600-Y.1699
   Operation, administration and maintenance    Y.1700-Y.1799
   Charging    Y.1800-Y.1899
   IPTV over NGN    Y.1900-Y.1999
Next Generation Networks Y.2000-Y.2999
   Frameworks and functional architecture models    Y.2000-Y.2099
   Quality of Service and performance    Y.2100-Y.2199
   Service aspects: Service capabilities and service architecture    Y.2200-Y.2249
   Service aspects: Interoperability of services and networks in NGN    Y.2250-Y.2299
   Numbering, naming and addressing    Y.2300-Y.2399
   Network management    Y.2400-Y.2499
   Network control architectures and protocols    Y.2500-Y.2599
   Packet-based Networks    Y.2600-Y.2699
   Security    Y.2700-Y.2799
   Generalized mobility    Y.2800-Y.2899
   Carrier grade open environment    Y.2900-Y.2999
Future networks Y.3000-Y.3499
Cloud Computing Y.3500-Y.3999
Supplements to the Y-series Recommendations Y supplements
   Supplements to the Y-series Recommendations relating to the Next Generation Networks    Y.2000-Y.3000 supplements
 
ITU-T Z-Series Recommendations
LANGUAGES AND GENERAL SOFTWARE ASPECTS FOR TELECOMMUNICATION SYSTEMS
Formal description techniques (FDT) Z.100-Z.199
   Specification and Description Language (SDL)    Z.100-Z.109
   Application of formal description techniques    Z.110-Z.119
   Message Sequence Chart (MSC)    Z.120-Z.129
   User Requirements Notation (URN)    Z.150-Z.159
   Testing and Test Control Notation (TTCN)    Z.160-Z.179
Programming languages Z.200-Z.299
   CHILL: The ITU-T high level language    Z.200-Z.209
Man-machine language Z.300-Z.399
   General principles    Z.300-Z.309
   Basic syntax and dialogue procedures    Z.310-Z.319
   Extended MML for visual display terminals    Z.320-Z.329
   Specification of the man-machine interface    Z.330-Z.349
   Data-oriented human-machine interfaces    Z.350-Z.359
   Human-machine interfaces for the management of telecommunications networks    Z.360-Z.379
Quality Z.400-Z.499
   Quality of telecommunication software    Z.400-Z.409
   Quality aspects of protocol-related Recommendations    Z.450-Z.459
Methods Z.500-Z.599
   Methods for validation and testing    Z.500-Z.519
Middleware Z.600-Z.699
   Processing environment architectures    Z.600-Z.609
Supplements to the Z-series Z supplements

 

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