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ITU-R RECMN TF.SERIES SUPP 1 Time Signals and Frequency Standards Emissions
ITU-R VOL 1997 TF SERIES Time Signals and Frequency Standards Emissions
ITU-R VOL 1997 TF SERIES Time Signals and Frequency Standards Emissions Supplement 1
ITU-R RECMN TF.536-1 Time-Scale Notations
ITU-R RECMN TF.536 Time-Scale Notations - Section 7B - Specifications for the Standard-Frequency and Time-Signal Services
ITU-T RECMN Q.11 TER Timetable for Coordinated Implementation of the Full Capability of the Numbering Plan for the ISDN Era (Recommendation E.164) - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements Study Group XI; 2 pp; Cancelled
ITU-T RECMN E.165 Timetable for Coordinated Implementation of the Full Capability of the Numbering Plan for the ISDN Era (Recommendation E.164) - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 2 pp
ITU-T RECMN E.142 Time-to-Answer by Operators - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service Study Group II; 1 pp; Cancelled
ITU-T RECMN F.65 Time-to-Answer by Operators at International Telex Positions - Telegraph and Mobile Services Operations and Quality of Service (Study Group I) 1 pp
ITU-T RECMN G.811 Timing Characteristics of Primary Reference Clocks - Series G: Transmission Systems and Media, Digital Systems and Networks Digital Transmission Systems - Digital Networks - Design Objectives for Digital Networks Study Group 13; 10 pp
ITU-T RECMN G.813 Timing Characteristics of SDH Equipment Slave Clocks (SEC) - Series G: Transmission Systems and Media; Digital Transmission Systems - Digital Networks - Design Objectives for Digital Networks Study Group 13; 37pp
ITU-T RECMN O.171 Timing Jitter and Wander Measuring Equipment for Digital Systems Which are Based on the Plesiochronous Digital Heirarchy (PDH) - Series O: Specifications of Measuring Equipment Equipment for the Measurement of Digital and Analogue/Digital Parameters Study Group 4; 34 pp
ITU-T RECMN O.171 Timing Jitter Measuring Equipment for Digital Systems - Specifications for Measuring Equipment Study Group IV; 13 pp
ITU-T RECMN G.811 Timing Requirements at the Outputs of Primary Reference Clocks Suitable for Plesiochronous Operation of International Digital Links - Digital Networks, Digital Sections and Digital Line Systems (Study Groups XV and XVIII) 6 pp
ITU-T RECMN G.812 Timing Requirements at the Outputs of Slave Clocks Suitable for Plesiochronous Operation of International Digital Links - Digital Networks, Digital Sections and Digital Line Systems (Study Groups XV and XVIII) 6 pp
ITU-T RECMN G.812 Timing Requirements of Slave Clocks Suitable for Use as Node Clocks in Synchronization Networks - Series G: Transmission Systems and Media, Digital Systems and Networks - Digital Transmission Systems - Digital Networks - Design Objectives for Digital Networks Study Group 13; 42 pp
ITU-T RECMN M.3300 TMN F Interface Requirements - Series M: TMN and Network Maintenance: International Transmission Systems, Telephone Circuits, Telegraphy, Facsimile and Leased Circuits - Telecommunications Management Network Study Group 4; 29 pp
ITU-T RECMN M.3020 TMN Interface Specification Methodology - Maintenance - Telecommunications Management Network (Study Group 4) 30 pp
ITU-T RECMN M.3020 TMN Interface Specification Methodology - Maintenance - Telecommunications Management Network Study Group 4; 15 pp
ITU-T RECMN M.3300 TMN Management Capabilities Presented at the F Interface - Maintenance: Telecommunications Management Network (Study Group IV) 15 pp
ITU-T RECMN M.3400 TMN Management Functions - Maintenance: Telecommunications Management Network (Study Group IV) 28 pp
ITU-T RECMN M.3400 TMN Management Functions - Series M: TMN and Network Maintenance: International Transmission Systems, Telephone Ccircuits, Telegraphy, Facsimile and Leased Circuits Telecommunications Management Network Study Group 4; 101 pp
ITU-T RECMN M.3400 TMN Management Functions Series M: TMN and Network Maintenance: International Transmission Systems, Telephone Circuits, Telegraphy, Facsimile and Leased Circuits Telecommunications Management Network Study Group 4
ITU-T RECMN M.3211 .1 TMN Management Service: Fault and Performance Management of the ISDN Access - Maintenance Telecommunication Management Network (Study Group 4) 11 pp
ITU-T RECMN M.3207.1 TMN Management Service: Maintenance Aspects of B-ISDN Management - Series M: Maintenance: International Transmission Systems, Telephone Circuits,Telegraphy, Facsmile and Leased Circuits; Telecommunications Management Network Study Group 4; 14 pp
ITU-T RECMN M.3200 TMN Management Services and Telecommunications Managed Areas: Overview - Series M: TMN Network Maintenance: International Transmission Systems, Telephone Circuits, Telegraphy, Facsimile and Leased Circuits Telecommunications Management Network Study Group 4; 29 pp
ITU-T RECMN M.3208.2 TMN Management Services for Dedicated and Reconfigurable Circuits Network: Connection Management of Pre-Provisioned Service Link Connections to Form a Leased Circuit Service - Series M: TMN and Network Maintenance: International Transmission Systems, Telephone Circuits, Telegraphy, Facsimile and Leased Circuits Telecommunications Management Network Study Group 4; 41 pp
ITU-T RECMN M.3108.2 TMN Management Services for Dedicated and Reconfigurable Circuits Network: Information Model for Connection Management of Preprovisioned Service Link Connections to Form a Reconfigurable Leased Service Series M. TMN and Network Maintenance: International Transmission Systems, Telephone Circuits, Telegrap
ITU-T RECMN M.3208.1 TMN Management Services for Dedicated and Reconfigurable Circuits Network: Leased Circuit Services - Series M: TMN and Network Maintenance: International Transmission Systems, Telephone Circuits, Telegraphy, Facsimile and Leased Circuits; Telecommunications Management Network Study Group 4; 95 pp
ITU-T RECMN M.3208.1 CORR 1 TMN Management Services for Dedicated and Reconfigurable Circuits Network: Leased Circuit Services Corrigendum 1 Series M: TMN and Network Maintenance: International Transmission Systems, Telephone Circuits, Telegraphy, Facsimile and Leased Circuits; Telecommunications Management Network Study Group 4
ITU-T RECMN M.3208.3 TMN Management Services for Dedicated and Reconfigurable Circuits Network: Virtual Private Network Service - Series M: TMN and Network Maintenance: International Transmission Systems, Telephone Circuits, Telegraphy, Facsimile and Leased Circuits Telecommunications Management Network Study Group 4
ITU-T RECMN M.3200 TMN Management Services: Overview - Maintenance: Telecommunications Management Network Study Group IV; 31 pp
ITU-T RECMN M.3016 TMN Security Overview - Series M: TMN and Network Maintenance: International Transmission Systems, Telephone Circuits, Telegraphy, Facsimile and Leased Circuits - Telecommunications Management Network Study Group 4; 24 pp
ITU-T RECMN R.50 Tolerable Limits for the Degree of Isochronous Distortion of Code- Independent 50-Baud Telegraph Circuits - Telegraph Transmission (Study Group IX) 1 pp
ITU-T RECMN R.120 Tolerable Limits for the Degree of Isochronous Distortion of Code- Independent Telegraph Circuits Operating at Modulation Rates of 75, 100 and 200 Bauds - Telegraph Transmission (Study Group IX) 1 pp
ITU-R RECMN 717 Tolerances for Transmission Time Differences Between the Vision and Sound Components of a Television Signal - Section CMTT E - Transmission of Signals with Multiplexing of Video, Sound and Data, and Signals of New Systems
ITU-T RECMN J.100 Tolerances for Transmission Time Differences between the Vision and Sound Components of a Television Signal - Television and Sound Transmission Formerly Recommendation ITU-R CMTT.717; Study Group 9; 3 pp
ITU-R RECMN P.1511 Topography for Earth-To-Space Propagation Modelling
ITU-T RECMN E.744 Traffic and Congestion Control Requirements for SS No. 7 and IN-Structured Networks - Series E: Telephone Network and ISDN Quality of Service, Network Management and Traffic Engineering - Traffic Engineering - ISDN Traffic Engineering Study Group 2; 19 pp
ITU-T RECMN I.371 Traffic Control and Congestion Control in B-ISDN - Series I: Integrated Services Digital Network Overall Network Aspects and Functions - General Network Requirements and Functions Study Group 13; 85 pp
ITU-T RECMN I.371 Traffic Control and Congestion Control in B-ISDN (Study Group XVIII) 29 pp
ITU-T RECMN I.371.1 Traffic Control and Congestion Control in B-ISDN: Conformance Definitions for ABT and ABR - Series I: Integrated Services Digital Network Overall Network Aspects and Functions - General Network Requirements and Functions Study Group 13; 33 pp
ITU-T RECMN E.500 Traffic Intensity Measurement Principles - Series E: Overall Network Operation, Telephone Service, Service Operation and Human Factors Quality of Service, Network Management and Traffic Engineering - Traffic Engineering - Measurement and Recording of Traffic Study Group 2; 17 pp
ITU-T RECMN E.500 Traffic Intensity Measurement Principles - Telephone Network and ISDN - Quality of Service, Network Management and Traffic Engineering (Study Group II) 12 pp
ITU-T RECMN E.500 (REV 1) Traffic Intensity Measurement Principles Study Group II; 17 pp
ITU-R RECMN V.665-1 Traffic Intensity Unit - Section C - Other Means of Expression
ITU-T RECMN B.18 Traffic Intensity Unit - Terms and Definitions Abbreviations and Acronyms Recommendations on Means of Expression (Series B) General Telecommunications Statistics (Series C) 1 pp
ITU-T RECMN B.18 (REV 1) Traffic Intensity Unit (Study Group II) 3 pp
ITU-T RECMN Z.336 Traffic Measurement Administration - Man-Machine Language (MML) (Study Group X) 37 pp
ITU-T RECMN E.504 Traffic Measurement Administration - Telephone Network and ISDN - Quality of Service, Network Management and Traffic Engineering (Study Group II) 2 pp
ITU-T RECMN E.490 Traffic Measurement and Evaluation - General Survey (Study Group II) 6 pp
ITU-T RECMN E.491 Traffic Measurement by Destination Quality of Service, Network Management and Traffic Engineering - Traffic Engineering - Measurement and Recording of Traffic - Series E: Overall Network Operation, Telephone Service, Service Operation and Human Factors Study Group 2; 10 pp
ITU-T RECMN E.491 Traffic Measurement by Destination Study Group II; 5 pp
ITU-T RECMN E.503 Traffic Measurement Data Analysis - Telephone Network and ISDN - Quality of Service, Network Management and Traffic Engineering (Study Group II) 4 pp
ITU-T RECMN E.503 (REV 1) Traffic Measurement Data Analysis (Study Group II) 9 pp
ITU-T RECMN E.502 (REV 1) Traffic Measurement Requirements for Digital Telecommunication Exchanges (Study Group II) 23 pp
ITU-T RECMN E.502 Traffic Measurement Requirements for SPC (Especially Digital) Telecommunication Exchanges - Telephone Network and ISDN - Quality of Service, Network Management and Traffic Engineering (Study Group II) 15 pp
ITU-T RECMN E.743 Traffic Measurements for SS No. 7 Dimensioning and Planning - Telephone Network and ISDN - Quality of Service, Network Management and Traffic Engineering Study Group 2; 7 pp
ITU-T RECMN E.492 Traffic Reference Period - Telephone Network and ISDN Quality of Service, Network Management and Traffic Engineering (Study Group 2) 11 pp
ITU-T RECMN E.492 Traffic Reference Period - Telephone Network and ISDN Quality of Service, Network Management and Traffic Engineering (Study Group 2) 11 pp
ITU-T RECMN E.170 Traffic Routing (Study Group II) 10 pp
ITU-T RECMN Q.787 Transaction Capabilities (TC) Test Specification - Series Q: Switching and Signalling - Specifications of Signalling System No. 7 - Test Specification Study Group 11; 322 pp
ITU-T RECMN Q.787 Transaction Capabilities (TC) Test Specification - Specifications of Signalling System No. 7 (Study Group XI) 270 pp
ITU-T RECMN Q.773 Transaction Capabilities Formats and Encoding - Series Q: Switching and Signalling Specifications of Signalling System No. 7 - Transaction Capabilities Application Part Study Group 11; 38 pp
ITU-T RECMN Q.773 Transaction Capabilities Formats and Encoding - Specifications of Signalling System No. 7 (Study Group XI) 23 pp
ITU-T RECMN Q.772 Transaction Capabilities Information Element Definitions - Series Q: Switching and Signalling Specifications of Signalling System No.7 - Transaction Capabilities Application Part Study Group 11; 14 pp
ITU-T RECMN Q.772 Transaction Capabilities Information Element Definitions - Specifications of Signalling System No. 7 (Study Group XI) 5 pp
ITU-T RECMN Q.774 Transaction Capabilities Procedures - Series Q: Switching and Signalling Specifications of Signalling System No. 7 - Transaction Capabilities Application Part Study Group 11; 66 pp
ITU-T RECMN Q.774 Transaction Capabilities Procedures - Specifications of Signalling System No. 7 (Study Group XI) 41 pp
ITU-T RECMN Q.755.2 Transaction Capabilities Test Responder - Series Q: Switching and Signalling Specifications of Signalling System No. 7 - Signalling System No. 7 Management Study Group 11; 25 pp
ITU-T RECMN M.760 Transfer Link for Common Channel Signalling System No. 6 - General Maintenance Principles - Maintenance of Transmission Systems and Telephone Circuits (Study Group IV) 5 pp
ITU-R RECMN BR.1354 Transfer of Film Programmes to Video Tape for Programme Exchange and for Preservation of Endangered Films
ITU-R RECMN M.491-1 Translation between an Identity Number and Identities for Direct-Printing Telegraphy in the Maritime Mobile Service
ITU-R RECMN M.491-1 Translation between an Identity Number and Identities for Direct-Printing Telegraphy in the Maritime Mobile Service - Section 8B - Maritime Mobile Service; Telegraphy and Related Subjects
ITU-T RECMN SERIES G SUPP 32 Transmission Aspects of Digital Mobile Systems - Transmission Systems and Media - Transmission Plan Aspects of Special Circuits and Connections Using the International Telephone Connection Network Supplement 32
ITU-T RECMN G.117 Transmission Aspects of Unbalance About Earth - Transmission Systems and Media General Characteristics of International Telephone Connections and International Telephone Circuits (Study Group 12) 23 pp
ITU-T RECMN G.117 Transmission Aspects of Unbalance About Earth (Definitions and Methods) - General Characteristics of International Telephone Connections and Circuits (Study Groups XII and XV) 15 pp
ITU-T RECMN S.10 Transmission at Reduced Character Transfer Rate over a Standardized 50-Baud Telegraph Channel - Telegraph Services Terminal Equipment (Study Group IX) 1 pp
ITU-T RECMN R.30 Transmission Characteristic for International VFT Links - Telegraph Transmission (Study Group IX) 2 pp
ITU-T RECMN P.340 Transmission Characteristics and Speech Quality Parameters of Hands-Free Terminals Series P: Telephone Transmission Quality, Telephone Installations, Local Line Networks Subscribers' Lines and Sets Study Group 12
ITU-T RECMN Q.552 Transmission Characteristics at 2-Wire Analogue Interfaces of Digital Exchange - Digital Local, Transit, Combined and International Exchanges in Integrated Digital Networks and Mixed Analogue-Digital Networks - Supplements (Study Group XI) 25 pp
ITU-T RECMN Q.552 Transmission Characteristics at 2-Wire Analogue Interfaces of Digital Exchanges - Digital Exchanges Study Group 15; 28 pp
ITU-T RECMN Q.552 Transmission Characteristics at 2-Wire Analogue Interfaces of Digital Exchanges - Series Q: Switching and Signalling - Digital Exchanges - Transmission Characteristics Study Group 15; 42 pp
ITU-T RECMN Q.553 Transmission Characteristics at 4-Wire Analogue Interfaces of a Digital Exchange - Digital Local, Transit, Combined and International Exchanges in Integrated Digital Networks and Mixed Analogue-Digital Networks - Supplements (Study Group XI) 12 pp
ITU-T RECMN Q.553 Transmission Characteristics at 4-Wire Analogue Interfaces of Digital Exchanges - Digital Exchanges Study Group 15; 15 pp
ITU-T RECMN Q.553 Transmission Characteristics at 4-Wire Analogue Interfaces of Digital Exchanges - Series Q: Switching and Signalling Digital Exchanges - Transmission Characteristics Study Group 15; 19 pp
ITU-T RECMN Q.554 Transmission Characteristics at Digital Interfaces of a Digital Exchange - Digital Local, Transit, Combined and International Exchanges in Integrated Digital Networks and Mixed Analogue-Digital Networks - Supplements (Study Group XI) 3 pp
ITU-T RECMN Q.554 Transmission Characteristics at Digital Interfaces of Digital Exchanges - Digital Exchanges Study Group 15; 6 pp
ITU-T RECMN Q.554 Transmission Characteristics at Digital Interfaces of Digital Exchanges - Series Q: Switching and Signalling Digital Exchanges - Transmission Characteristics Study Group 15; 11 pp
ITU-T RECMN P.313 Transmission Characteristics for Cordless and Mobile Digital Terminals - Series P: Telephone Transmission Quality, Telephone Installations, Local Line Networks - Subscribers' Lines and Sets Study Group 12; 26 pp
ITU-T RECMN P.31 Transmission Characteristics for Digital Telephones - Telephone Transmission Quality Study Group XII; 2 pp; Cancelled
ITU-T RECMN P.31 Transmission Characteristics for Digital Telephones - Telephone Transmission Quality Subscribers' Lines and Sets Study Group XII; 11 pp; Cancelled
ITU-T RECMN M.4030 Transmission Characteristics for Setting up and Lining up a Transfer Link for Common Channel Signalling System No.6 (Analogue Version) - Maintenance: Common Channel Signalling Systems (Study Group IV) 8 pp
ITU-T RECMN S.31 Transmission Characteristics for Start-Stop Data Terminal Equipment Using International Alphabet No. 5 - Telegraph Services Terminal Equipment (Study Group IX) 2 pp
ITU-T RECMN P.342 Transmission Characteristics for Telephone Band (300 - 3400 Hz) Digital Loudspeaking and Hands-Free Telephony Terminals - Series P: Telephone Transmission Quality; Subscribers' Lines and Sets Study Group 12; 25 pp
ITU-T RECMN P.310 Transmission Characteristics for Telephone Band (300-3400 Hz) Digital Telephones - Telephone Transmission Quality Subscribers' Lines and Sets (Study Group 12) 29 pp
ITU-T RECMN P.311 Transmission Characteristics for Wideband (150-7000 Hz) Digital Handset Telephones - Series P: Telephone Transmission Quality, Telephone Installations, Local Line Networks - Subscribers' Lines and Sets Study Group 12; 22 pp
ITU-T RECMN P.341 CORR 1 Transmission Characteristics for Wideband (150-7000 Hz) Digital Hands-Free Telephony Terminals - Corrigendum 1 - Series P: Telephone Transmission Quality, Telephone Installations, Local Line Networks - Subscribers' Lines and Sets Study Group 12; 7 pp
ITU-T RECMN P.341 Transmission Characteristics for Wideband (150-7000 Hz) Digital Hands-Free Telephony Terminals - Series P: Telephone Transmission Quality, Telephone Installations, Local Line Networks - Subscribers' Lines and Sets Study Group 12; 23 pp
ITU-R RECMN M.633-2 Transmission Characteristics of a Satellite Emergency Position-Indicating Radio Beacon (Satellite EPIRB) System Operating Through a Low Polar-Orbiting Satellite System in the 406 MHz Band
ITU-R RECMN M.632-2 Transmission Characteristics of a Satellite Emergency Position-Indicating Radio Beacon (Satellite EPIRB) System Operating Through Geostationary Satellites in the 1.6 GHz Band
ITU-R RECMN M.632-3 Transmission Characteristics of a Satellite Emergency Position-Indicating Radio Beacon (Satellite EPIRB) System Operating Through Geostationary Satellites in the 1.6 GHz Band
ITU-R RECMN M.633-1 Transmission Characteristics of a Satellite Emergency Position-Indicating Radiobeacon (Satellite EPIRB) System Operating Through a Low Polar-Orbiting Satellite System in the 406 MHz Band - Section 8J - Technical and Operating Characteristics of Radiocommunications Using Satellite Distress and Safety Operation and of Radio Determination Satellite Services
ITU-R RECMN M.632-1 Transmission Characteristics of a Satellite Emergency Position-Indicating Radiobeacon (Satellite EPIRB) System Operating Through Geostationary Satellites in the 1.6 GHz Band - Section 8J - Technical and Operating Characteristics of Radiocommunications Using Satellite Distress and Safety Operation and of Radio Determination Satellite Services
ITU-T RECMN Q.45 Transmission Characteristics of an Analogue International Exchange - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 1 pp
ITU-T RECMN Q.45 BIS Transmission Characteristics of an Analogue International Exchange - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 9 pp
ITU-T RECMN Q.551 Transmission Characteristics of Digital Exchanges - Digital Exchanges Study Group 15; 32 pp
ITU-T RECMN Q.551 Transmission Characteristics of Digital Exchanges - Digital Local, Transit, Combined and International Exchanges in Integrated Digital Networks and Mixed Analogue-Digital Networks - Supplements (Study Group XI) 14 pp
ITU-T RECMN Q.551 Transmission Characteristics of Digital Exchanges - Series Q: Switching and Signalling Digital Exchanges - Transmission Characteristics Study Group 15; 40 pp
ITU-R RECMN M.690 Transmission Characteristics of Emergency Position-Indicating Radio Beacons (EPIRBs) Operating on Carrier Frequencies of 121.5 MHz and 243 MHz - Section 8D - Radiodetermination, Global Maritime Distress and Safety System and Related Subjects
ITU-T RECMN G.142 Transmission Characteristics of Exchanges - General Characteristics of International Telephone Connections and Circuits Study Groups XII and XV; 6 pp
ITU-T RECMN G.142 Transmission Characteristics of Exchanges - Series G: Transmission Systems and Media, Digital Systems and Networks International Telephone Connections and Circuits - General Characteristics of the 4-Wire Chain on International Circuits; International Transit Study Group 12; 15 pp
ITU-T RECMN P.340 Transmission Characteristics of Hands-Free Telephones - Series P: Telephone Transmission Quality Subscribers' Lines and Sets Study Group 12; 28 pp
ITU-T RECMN P.34 Transmission Characteristics of Hands-Free Telephones - Telephone Transmission Quality Study Group XII; 8 pp; Cancelled
ITU-T RECMN P.34 Transmission Characteristics of Hands-Free Telephones - Telephone Transmission Quality Subscribers' Lines and Sets Study Group XII; 11 pp; Cancelled
ITU-T RECMN R.100 Transmission Characteristics of International TDM Links - Telegraph Transmission (Study Group IX) 4 pp
ITU-T RECMN R.100 Transmission Characteristics of International TDM Links - Telegraphy Telegraph Transmission (Study Group IX) 7 pp
ITU-T RECMN G.120 Transmission Characteristics of National Networks - General Characteristics of International Telephone Connections and Circuits Study Groups XII and XV; 2 pp
ITU-T RECMN G.120 Transmission Characteristics of National Networks - Series G: Transmission Systems and Media, Digital Systems and Networks International Telephone Connections and Circuits - General Characteristics of National Systems Forming Part of International Connections Study Group 12; 17 pp
ITU-T RECMN P.38 Transmission Characteristics of Operator Telephone Systems (OTS) - Telephone Transmission Quality - Subscribers' Lines and Sets (Study Group XII) 4 pp
ITU-T RECMN P.38 Transmission Characteristics of Operator Telephone Systems (OTS) - Telephone Transmission Quality (Study Group XII) 2 pp
ITU-T RECMN G.671 Transmission Characteristics of Passive Optical Components - Series G: Transmission Systems and Media, Digital Systems and Networks Transmission Media Characteristics - Characteristics of Optical Components and Sub-Systems Study Group 15; 25 pp
ITU-T RECMN S.3 Transmission Characteristics of the Local End with Its Termination (ITA2) - Telegraph Services Terminal Equipment (Study Group IX) 3 pp
ITU-T RECMN P.311 Transmission Characteristics of Wideband Handset Telephones - Telephone Transmission Quality (Study Group 12) 15 pp
ITU-T RECMN P.341 Transmission Characteristics of Wideband Handsfree Telephones - Telephone Transmission Quality (Study Group 12) 17 pp
ITU-R RECMN S.1425 Transmission Considerations for Digital Carriers Using Higher Levels of Modulation on Satellite Circuits*
ITU-T RECMN G.113 Transmission Impairments - General Characteristics of International Telephone Connections and Circuits (Study Groups XII and XV) 22 pp
ITU-T RECMN G.113 Transmission Impairments - Transmission Systems and Media General Characteristics of International Telephone Connections and International Telephone Circuits (Study Group 12) 33 pp
ITU-T RECMN G.113 Transmission Impairments - Transmission Systems and Media General Recommendations on the Transmission Quality for an Entire International Telephone Connection (Study Group XII) 24 pp
ITU-T RECMN G.113 APPENDIX I Transmission Impairments Appendix I: Provisional Planning Values for the Equipment Impairment Factor Ie - Series G: Transmission Systems and Media, Digital Systems and Networks International Telephone Connections and Circuits - General Recommendations on the Transmission Quality for an Entire International Telephone Connection Study Group 12; 10 pp
ITU-T RECMN G.113 APPENDIX I Transmission Impairments Appendix I: Provisional Planning Values for the Equipment Impairment Factor Ie - Series G: Transmission Systems and Media, Digital Systems and Networks International Telephone Connections and Circuits - General Recommendations on the Transmission Quality for an Entire International Telephone Connection Study Group 12; 9 pp
ITU-T RECMN D.91 Transmission in Encoded Form of Maritime Telecommunications Accounting Information - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 8 pp
ITU-T RECMN D.91 Transmission in Encoded Form of Maritime Telecommunications Accounting Information (Study Group III) 13 pp
ITU-T RECMN D.91 Transmission in Encoded Form of Maritime Telecommunications Accounting Information; Series D: General Tariff Principles; General Tariff Principles - Charging and Accounting in the Mobile Service Study Group 3; 29 pp
ITU-T RECMN D.190 Transmission in Encoded Form of Monthly International Accounting Information - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 6 pp (Same as Recmn E.275)
ITU-T RECMN E.275 Transmission in Encoded Form of Monthly International Accounting Information - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 1 pp (Same as Recmn D.190)
ITU-T RECMN D.176 (REV 1) Transmission in Encoded Form of Telephone Reversed Charge Billing and Accounting Information
ITU-T RECMN D.176 Transmission in Encoded Form of Telephone Reversed Charge Billing and Accounting Information - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 6 pp
ITU-T RECMN D.176 Transmission in Encoded Form of Telephone Reversed Charge Billing and Accounting Information - Series D: General Tariff Principles - General Tariff Principles - Drawing Up and Exchange of International Telephone and Telex Accounts Covering Note 06/98; Study Group 3; 12 pp
ITU-T RECMN E.276 Transmission in Encoded Form of Telephone Reversed Charge Billing and Accounting Information - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 1 pp (Same as Recmn D.176)
ITU-T RECMN D.176 (REV 1) Transmission in Encoded Form of Telephone Reversed Charge Billing and Accounting Information (Study Group III) 9 pp (Same as Recmn E.276)
ITU-T RECMN Q.43 Transmission Losses, Relative Levels - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements Study Group XI; 6 pp; Cancelled
ITU-T RECMN M.1014 Transmission Maintenance Point (International Line) (TMP-IL) - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and Data Transmission Systems (Study Group IV) 2 pp
ITU-T FASCICLE III.3 Transmission Media Characteristics Recommendations G.601 - G.654
ITU-R RECMN 660 Transmission of Analogue High-Quality Sound-Programme Signals on Mixed Analogue-and-Digital Circuits Using 384 kbit/s Channels - Section CMTT C - Transmission Standards and Performance Objectives for Sound-Programme Channels
ITU-T RECMN J.54 Transmission of Analogue High-Quality Sound-Programme Signals on Mixed Analogue-and-Digital Circuits Using 384 kbit/s Channels - Television and Sound Transmission Formerly Recommendation ITU-R CMTT.660; Study Group 9; 7 pp
ITU-T RECMN J.81 AMD 2 Transmission of Component-Codec Digital Television Signals for Contribution-Quality Applications at the Third Hierarchical Level of ITU-T Recommendation G.702 - Amendment 2: Appendix IV to Annex A - Results of 34 Mbit/s Codec Interworking Tests (February 1996) Series J: Transmission of Television, Sound Programme and Other Multimedia Signals - Digital Transmission of Television Signals Study Group 9; 9 pp
ITU-R RECMN 721 Transmission of Component-Coded Digital Television Signals for Contribution-Quality Applications at Bit Rates Near 140 Mbit/s - Section CMTT A - Television Transmission Standards and Performance Objectives
ITU-R RECMN 721-1 Transmission of Component-Coded Digital Television Signals for Contribution-Quality Applications at Bit Rates Near 140 Mbit/s - Section CMTT A - Television Transmission Standards and Performance Objectives
ITU-T RECMN J.80 Transmission of Component-Coded Digital Television Signals for Contribution-Quality Applications at Bit Rates Near 140 mbit/s - Television and Sound Transmission 18 pp (Formerly Recommendation ITU-R CMTT.721)
ITU-R RECMN 723 Transmission of Component-Coded Digital Television Signals for Contribution-Quality Applications at the Third Hierarchical Level of CCITT Recommendation G.702 - Section CMTT A - Television Transmission Standards and Performance Objectives
ITU-T RECMN J.81 CORR. 1 Transmission of Component-Coded Digital Television Signals for Contribution-Quality Applications at the Third Hierarchical Level of ITU-T Recommendation G.702 - Series J: Transmission of Sound-Programme and Television Signals Digital Transmission of Television Signals Study Group 9; 9 pp
ITU-T RECMN J.81 Transmission of Component-Coded Digital Television Signals for Contribution-Quality Applications at the Third Hierarchical Level of ITU-T Recommendation G.702 - Television and Sound Transmission - Amendment 1 (Study Group IX) 79 pp ITU-R CMTT.723
ITU-T RECMN J.81 Transmission of Component-Coded Digital Television Signals for Contribution-Quality Applications at the Third Hierarchical Level of ITU-T Recommendation G.702 - Television and Sound Transmission 69 pp (Formerly Recommendation ITU-R CMTT.723)
ITU-T RECMN J.81 AMD 1 Transmission of Component-Coded Digital Television Signals for Contribution-Quality Applications at the Third Hierarchical Level of ITU-T Recommendation G.702 - Television and Sound Transmission Amendment 1; Study Group IX; 5 pp
ITU-R RECMN M.1222 Transmission of Data Messages on Shared Private Land Mobile Radio Channels
ITU-R RECMN 724 Transmission of Digital Studio Quality Sound Signals over H1 Channels - Section CMTT C - Transmission Standards and Performance Objectives for Sound- Programme Channels
ITU-T RECMN J.57 Transmission of Digital Studio Quality Sound Signals Over H1 Channels Television and Sound Transmission Formerly Recommendation ITU-R CMTT.724; Study Group 9
ITU-T RECMN J.88 Transmission of Enhanced Definition Television Signals Over Digital Links Series J: Transmission of Television, Sound Programme and Other Multimedia Signals Digital Transmission of Television Signals Study Group 9; 53 pp
ITU-R RECMN 719 Transmission of High- Quality Sound-Programme Analogue Signals over Mixed Analogue/Digital Circuits at 320 kbit/s - Section CMTT C - Transmission Standards and Performance Objectives for Sound-Programme Channels
ITU-T RECMN J.56 Transmission of High-Quality Sound-Programme Analogue Signals over Mixed Analogue/Digital Circuits At 320 kbit/s - Television and Sound Transmission Formerly Recommendation ITU-R CMTT.719; Study Group 9; 8 pp
ITU-R RECMN M.826 Transmission of Information for Updating Electronic Chart Display and Information Systems (ECDIS)
ITU-R RECMN M.826 Transmission of Information for Updating Electronic Chart Display and Information Systems (ECDIS)
ITU-R RECMN BS.707 Transmission of Multisound in Terrestrial PAL Television Systems B, G, H and I - Section 10B - Frequency-Modulation Sound Broadcasting in Bands 8 (VHF) and 9 (UHF)
ITU-R RECMN BS.707-4 Transmission of Multisound in Terrestrial Television Systems Pal B, D1, G, H and I, and Secam D, K, K1, and L
ITU-R RECMN BS.707-1 Transmission of Multisound in Terrestrial Television Systems Pal B, G, H and I, and Secam L
ITU-R RECMN BS.707-2 Transmission of Multisound in Terrestrial Television Systems Pal B, G, H and I, and Secam L
ITU-R RECMN BS.707-3 Transmission of Multisound in Terrestrial Television Systems Pal B, G, H and I, and Secam L
ITU-T RECMN J.66 Transmission of One Sound Programme Associated with Analogue Television Signal by Means of Time Division Multiplex in the Line Synchronizing Pulse - Line Transmission of Non-Telephone Signals - Transmission of Sound-Programme and Television Signals (Study Group XV) 1 pp
ITU-R RECMN 572 Transmission of One Sound-Programme Associated with an Analogue Television Signal by Means of Time-Division Multiplex in the Line Synchronizing Pulse - Section CMTT E - Transmission of Signals with Multiplexing of Video, Sound and Data, and Signals of New Systems
ITU-T RECMN V.14 Transmission of Start-Stop Characters over Synchronous Bearer Channels - Data Communication over the Telephone Network (Study Group XVII) 4 pp
ITU-T RECMN V.14 (REV 1) Transmission of Start-Stop Characters over Synchronous Bearer Channels (Study Group XVII) 7 pp
ITU-T RECMN V.14 CORR. 1 Transmission of Start-Stop Characters over Synchronous Bearer Channels Corrigendum 1 - Series V: Data Communication over the Telephone Network Interfaces and Voiceband Modems Study Group 16; 6 pp
ITU-T RECMN Q.27 Transmission of the Answer Signal - General Recommendations on Telephone Switching and Signalling - Functions and Information Flow for Services in the ISDN - Supplements (Study Group XI) 1 pp
ITU-T RECMN Q.109 Transmission of the Answer Signal in International Exchanges - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 1 pp
ITU-R RECMN BT.1366 Transmission of Time Code and Control Code in the Ancillary Data Space of a Digital Television Stream According to ITU-R BT.656, ITU-R BT.799 and ITU-R BT.1120
ITU-T RECMN H.53 Transmission of Wide-Spectrum Signals (Data, Etc.) over Wideband Supergroup Links - Line Transmission of Non-Telephone Signals - Transmission of Sound-Programme and Television Signals (Study Group XV) 1 pp
ITU-T RECMN H.52 Transmission of Wide-Spectrum Signals (Data, Facsimile, Etc.) on Wideband Group Links - Line Transmission of Non-Telephone Signals - Transmission of Sound-Programme and Television Signals (Study Group XV) 1 pp
ITU-T RECMN G.712 Transmission Performance Characteristics of Pulse Code Modulation (Study Group XV) 33 pp (Replaces G.713, G.714, and G.715)
ITU-T RECMN G.712 Transmission Performance Characteristics of Pulse Code Modulation Channels - Series G: Transmission Systems and Media, Digital Systems and Networks - Digital Transmission Systems - Terminal Equipments - Coding of Analogue Signals by Pulse Code Modulation Study Group 15; 37 pp
ITU-T RECMN E.454 Transmission Performance Metrics Based on Error Correction Mode (ECM) Facsimile - Series E: Telephone Network and ISDN Quality of Service, Network Management and Traffic Engineering - Network Management - Checking the Quality of the International Telephone Service Study Group 2; 14 pp
ITU-T RECMN G.102 Transmission Performance Objectives and Recommendations - General Characteristics of International Telephone Connections and Circuits (Study Groups XII and XV) 4 pp
ITU-T RECMN G.116 Transmission Performance Objectives Applicable to End-to-End International Connections - Series G: Transmission Systems and Media, Digital Systems and Networks International Telephone Connections and Circuits - General Recommendations on the Transmission Quality for an Entire International Telephone Connection Study Group 12; 9pp
ITU-T RECMN G.174 Transmission Performance Objectives for Terrestrial Digital Wireless Systems Using Portable Terminals to Access the PSTN - General Characteristics of International Telephone Connections and International Telephone Circuits (Study Group 12) 17 pp
ITU-T RECMN P.30 Transmission Performance of Group Audio Terminals (GATs) - Telephone Transmission Quality (Study Group XII) 4 pp
ITU-T RECMN J.61 Transmission Performance of Television Circuits Designed for Use in International Connections - Line Transmission of Non-Telephone Signals - Transmission of Sound-Programme and Television Signals Study Group XV; 1 pp
ITU-R RECMN 567-3 Transmission Performance of Television Circuits Designed for Use in International Connections - Section CMTT A - Television Transmission Standards and Performance Objectives
ITU-T RECMN J.61 Transmission Performance of Television Circuits Designed for Use in International Connections - Television and Sound Transmission Formerly Recommendation ITU-R CMTT.567; Study Group 9; 45 pp
ITU-T RECMN G.101 Transmission Plan - General Characteristics of International Telephone Connections and Circuits (Study Groups XII and XV) 17 pp
ITU-T RECMN Q.40 Transmission Plan - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements Study Group XI; 5 pp; Cancelled
ITU-T RECMN G.101 Transmission Plan - Series G: Transmission Systems and Media International Telephone Connections and Circuits - General Definitions Study Group 12; 44 pp
ITU-T RECMN G.101 Transmission Plan - Transmission Systems and Media - General Characteristics of International Telephone Connections and International Telephone Circuits Study Group XII; 29 pp
ITU-T RECMN G.101 APP I Transmission Plan Appendix I: A Computational Model for Guidance in Transmission Planning Series G: Transmission Systems and Media, Digital Systems and Networks International Telephone Connections and Circuits - General Definitions Study Group 12
ITU-T RECMN G.172 Transmission Plan Aspects of International Conference Calls - General Characteristics of International Telephone Connections and Circuits (Study Groups XII and XV) 3 pp
ITU-T RECMN G.171 Transmission Plan Aspects of Privately Operated Networks - General Characteristics of International Telephone Connections and Circuits (Study Groups XII and XV) 19 pp
ITU-T RECMN G.173 Transmission Planning Aspects of the Speech Service in Digital Public Land Mobile Networks Transmission Systems and Media - Transmission Plan Aspects of Special Circuits and Connections Using the International Telephone Connection Network (SGrp XII) 21 pp
ITU-T RECMN G.175 Transmission Planning for Private/Public Network Interconnection of Voice Traffic - Series G: Transmission Systems and Media, Digital Systems and Networks International Telephone Connections and Circuits - Transmission Plan Aspects of Special Circuits and Connections Using the International Telephone Connection Network Study Group 12; 29 pp
ITU-T RECMN G.177 Transmission Planning for Voiceband Services over Hybrid Internet/PSTN Connections - Series G: Transmission Systems and Media, Digital Systems and Networks International Telephone Connections and Circuits - Transmission Plan Aspects of Special Circuits and Connections Using the International Telephone Connection Network Study Group 12; 22 pp
ITU-T RECMN H.22 Transmission Requirements of International Voice-Frequency Telegraph Links (at 50, 100 and 200 Baud) - Line Transmission of Non-Telephone Signals - Transmission of Sound-Programme and Television Signals (Study Group XV) 1 pp
ITU-T RECMN M.495 Transmission Restoration and Transmission Route Diversity: Terminology and General Principles - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 10 pp
ITU-T RECMN M.733 Transmission Routine Maintenance Measurements on Automatic and Semi-Automatic Telephone Circuits - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 1 pp
ITU-R RECMN BS.450-2 Transmission Standards for FM Sound Broadcasting at VHF
ITU-R RECMN BS.450-1 Transmission Standards for FM Sound Broadcasting at VHF - Section 10B - Frequency-Modulation Sound Broadcasting in Bands 8 (VHF) and 9 (UHF)
ITU-R RECMN BO.1408 Transmission System for Advanced Multimedia Services Provided by Integrated Services Digital Broadcasting in a Broadcasting-Satellite Channel
ITU-R RECMN BT.1436 Transmission Systems for Interactive Cable Television Services
ITU-T RECMN J.112 Transmission Systems for Interactive Cable Television Services - Series J: Transmission of Television, Sound Programme and Other Multimedia Signals - Interactive Systems for Digital Television Distribution Study Group 9; 256 pp
ITU-R RECMN BS.1195 Transmitting Antenna Characteristics at VHF and UHF
ITU-R RECMN BS.1195 Transmitting Antenna Characteristics at VHF and UHF
ITU-R RECMN BS.139-3 Transmitting Antennas for Sound Broadcasting in the Tropical Zone - Section 10A-2 - Sound Broadcasting in the Tropical Zone
ITU-R RECMN BS.80-3 Transmitting Antennas in HF Broadcasting - Section 10A-1 - Amplitude-Modulation Sound Broadcasting in Bands 5 (LF), 6 (MF) and 7 (HF)
ITU-R RECMN M.1453 Transport Information and Control Systems - Dedicated Short Range Communications at 5.8 GHz
ITU-R RECMN M.1310 Transport Information and Control Systems (TICS) - Objectives and Requirements
ITU-R RECMN M.1310 Transport Information and Control Systems (TICS) - Objectives and Requirements
ITU-R RECMN M.1452 Transport Information and Control Systems- Low Power Short-Range Vehicular Radar Equipment at 60 GHz and 76 GHz
ITU-R RECMN M.1451 Transport Information and Control Systems: Functionalities
ITU-T RECMN J.89 Transport Mechanism for Component-Coded Digital Television Signals Using MPEG-2 4:2:2 P@ML Including All Service Elements for Contribution and Primary Distribution - Series J: Transmission of Television, Sound Programme and Other Multimedia Signals - Digital Transmission of Television Signals Study Group 9; 20 pp
ITU-T RECMN M.2140 Transport Network Event Correlation - Series M: TMN and Network Maintenance: International Transmission Systems, Telephone Circuits, Telegraphy, Facsimile and Leased Circuits International Transport Network Study Group 4
ITU-T RECMN J.82 Transport of MPEG-2 Constant Bit Rate Television Signals in B-ISDN - Transmission of Sound-Programme and Television Signals Study Group 9; 11 pp
ITU-T RECMN J.131 Transport of MPEG-2 Signals in PDH Networks - Series J: Transmission of Television, Sound Programme and Other Multimedia Signals - Transport of MPEG-2 Signals on Packetised Networks Study Group 9; 28 pp
ITU-T RECMN J.132 Transport of MPEG-2 Signals in SDH Networks - Series J: Transmission of Television, Sound Programme and Other Multimedia Signals - Transport of MPEG-2 Signals on Packetised Networks Study Group 9; 37 pp
ITU-T RECMN G.832 Transport of SDH Elements on PDH Networks - Frame and Multiplexing Structures - Digital Networks (Study Group 13) 18 pp
ITU-T RECMN G.832 Transport of SDH Elements on PDH Networks - Frame and Multiplexing Structures - Series G: Transmission Systems and Media, Digital Systems and Networks Digital Transmission Systems - Digital Networks - Network Capabilities and Function Study Group 15; 23 pp
ITU-T RECMN G.832 Transport of SDH Elements on PDH Networks: Frame and Multiplexing Structures - Digital Networks (Study Group 13) 17 pp
ITU-T RECMN X.264 Transport Protocol Identification Mechanism Data Networks and Open System Communications Open Systems Interconnection - Protocol Identification (Study Group 7) 10 pp
ITU-T RECMN X.224 Transport Protocol Specification for Open Systems Interconnection for CCITT Applications - Data Communication Networks - Open Systems Interconnection (OSI) Protocol Specifications, Conformance Testing (Study Group VII) 93 pp
ITU-T RECMN X.214 Transport Service Definition for Open Systems Interconnection for CCITT Applications - Data Communication Networks - Open Systems Interconnection (OSI) Model and Notation, Service Definition (Study Group VII) 25 pp
ITU-R RECMN F.1105 Transportable Fixed Radiocommunications Equipment for Relief Operations
ITU-R RECMN F.1105 Transportable Fixed Radiocommunications Equipment for Relief Operations
ITU-T RECMN X.790 Trouble Management Function for ITU-T Applications - Data Networks and Open System Communications - OSI Management (Study Group 7) 120 pp
ITU-T RECMN X.790 AMD 1 Trouble Management Function for ITU-T Applications - Series X: Data Networks and Open System Communication - OSI Management - Management Functions Amendment 1: Implementation Conformance Statements Proformas; Study Group 7; 133 pp
ITU-T RECMN X.790 CORR. 1 Trouble Management Function for ITU-T Applications Corrigendum 1 Series X: Data Networks and Open System Communications OSI Management - Management Functions and ODMA Functions Study Group 4; 18 pp
ITU-T RECMN X.790 CORR 2 Trouble Management Function for ITU-T Applications Corrigendum 2 Series X: Data Networks and Open System Communications OSI Management - Management Functions and ODMA Functions Study Group 4
ITU-T RECMN Q.784 ANNEX A TTCN Version of Recommendation Q.784 - Specifications of Signalling System No. 7 Test Specification Study Group XI; 139 pp
ITU-T RECMN Q.783 TUP Test Specification - Specifications of Signalling System No. 7 (Study Group XI) 82 pp
ITU-T RECMN G.841 Types and Characteristics of SDH Network Protection Architectures - Digital Networks Study Group 15; 97 pp
ITU-T RECMN G.841 Types and Characteristics of SDH Network Protection Architectures - Series G: Transmission Systems and Media, Digital Systems and Networks Digital Transmission Systems - Digital Networks - SDH Network Characteristics Study Group 15; 140 pp
ITU-T RECMN I.731 Types and General Characteristics of ATM Equipment - Series I: Integrated Services Digital Network; B-ISDN Equipment Aspects - ATM Equipment Study Group 15; 22 pp
ITU-T RECMN G.782 Types and General Characteristics of Synchronous Digital Hierarchy (SDH) Equipment - General Aspects of Digital Transmission Systems Terminal Equipment (Study Group 15) 33 pp
ITU-T RECMN G.782 Types and General Characteristics of Synchronous Digital Hierarchy (SDH) Multiplexing Equipment (Study Group XV) 27 pp
ITU-T RECMN M.562 Types of Circuit and Circuit Section - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 5 pp
ITU-T RECMN K.23 Types of Induced Noise and Description of Noise Voltage Parameters for ISDN Basic User Networks Protection Against Interference (Study Group V) 4 pp
ITU-T RECMN J.12 Types of Sound-Programme Circuits Established over the International Telephone Network - Line Transmission of Non-Telephone Signals - Transmission of Sound-Programme and Television Signals (Study Group XV) 2 pp
ITU-T RECMN G.631 Types of Submarine Cable to Be Used for Systems with Line Frequencies of Less Than About 45 MHz - Transmission Media Characteristics (Study Group XV) 2 pp
ITU-T RECMN M.1015 Types of Transmission on Leased Circuits - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and Data Transmission Systems (Study Group IV) 3 pp
ITU-T RECMN G.326 Typical Systems on Symmetric Cable Pairs ((12 + 12) Systems) - International Analogue Carrier Systems Study Group XV; 3 pp; Cancelled
ITU-T RECMN G.323 Typical Transistorized System on Symmetric Cable Pairs - International Analogue Carrier Systems Study Group XV; 3 pp; Cancelled
ITU-T RECMN Q.114 Typical Transmission Requirements for Signal Senders and Receivers - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 2 pp
ITU-T RECMN K.10 Unbalance About Earth of Telecommunication Installations - Protection Against Interference (Study Group V) 17 pp
ITU-T RECMN K.10 Unbalance About Earth of Telecommunication Installations - Protection Against Interference (Study Group V) 8 pp
ITU-T RECMN Q.65 Unified Functional Methodology for the Characterization of Services and Network Capabilities - Series Q: Switching and Signalling Functions and Information Flows for Services in the ISDN - Methodology Study Group 11; 43 pp
ITU-T RECMN Q.65 Unified Functional Methodology for the Characterization of Services and Network Capabilities Including Alternative Object-Oriented Techniques Series Q: Switching and Signalling Functions and Information Flows for Services in the ISDN - Methodology Study Group 11
ITU-R RECMN SNG.770 Uniform Operational and Control Procedures for Satellite News Gathering (SNG)
ITU-R RECMN SNG.770-1 Uniform Operational Procedures for Satellite News Gathering (SNG)
ITU-R RECMN SNG.722-1 Uniform Technical Standards (Analogue) for Satellite News Gathering (SNG) - Section 4B1 - Systems Aspects
ITU-R RECMN SNG.1007 Uniform Technical Standards (Digital) for Satellite News Gathering (SNG)
ITU-R RECMN SNG.1007-1 Uniform Technical Standards (Digital) for Satellite News Gathering (SNG)
ITU-R RECMN SNG.722 Uniform Technical Standards and Uniform Operational Procedures for Satellite News Gathering (SNG) - Section CMTT A - Television Transmission Standards and Performance Objectives
ITU-R RECMN 722 Uniform Technical Standards and Uniform Operational Procedures for Satellite News Gathering (SNG) The Text of This Recommendation Is Published in Volume XII - Section 4B1 - Systems Aspects
ITU-T RECMN F.851 Universal Personal Telecommunication (UPT) - Service Description (Service Set 1) - Operations and Quality of Service - Universal Personal Telecommunication - (Study Group 1) 31 pp
ITU-T RECMN G.229 Unwanted Modulation and Phase Jitter - International Analogue Carrier Systems (Study Group XV) 2 pp
ITU-R RECMN S.1433 Uplink and Inter-Satellite Equivalent Power Flux-Density Radiated by Non-GSO FSS Systems
ITU-T RECMN Q.812 Upper Layer Protocol Profiles for the Q3 and X Interfaces - Series Q: Switching and Signalling Specifications of Signalling System No.7 - Q3 Interface Study Group 11; 25 pp
ITU-T RECMN Q.812 AMD 1 Upper Layer Protocol Profiles for the Q3 and X Interfaces Amendment 1: Additional X Interface Protocols for the Service Management Layer (SML) - Series Q: Switching and Signalling Specifications of Signalling System No.7 - Q3 Interface Study Group 4; 8 pp
ITU-T RECMN Q.812 AMD 2 Upper Layer Protocol Profiles for the Q3 and X Interfaces Amendment 2: Protocol Profile for Electronic Communications Interactive Agent Series Q: Switching and Signalling Q3 Interface Study Group 4
ITU-T RECMN Q.812 APPENDIX I Upper Layer Protocol Profiles for the Q3 and X Interfaces Appendix I - Guidance on Using Allomorphic Management - Series Q: Switching and Signalling Specifications of Signalling System No.7 - Q3 Interface Study Group 4; 23 pp
ITU-T RECMN Q.821 CORR.1 Upper Layer Protocol Profiles for the Q3 and X Interfaces Corrigendum 1 - Series Q: Switching and Signalling Specifications of Signalling System No.7 - Q3 Interface Study Group 4; 11 pp
ITU-T RECMN Q.812 Upper Layer Protocol Profiles for the Q3 Interface - Specifications of Signalling System No. 7 Q3 Interface (Study Group XI) 20 pp
ITU-T RECMN E.775 UPT Grade of Service Concept - Telephone Network and ISDN Quality of Service, Network Management and Traffic Engineering (Study Group 2) 9 pp
ITU-T RECMN Q.1541 UPT Stage 2 for Service Set 1 on IN CS-1 - Prcedures for Universal Personal Telecommunication: Functional Modelling and Information Flows Series Q: Switching and Signalling - Intelligent Network Study Group 11; 66 pp
ITU-T RECMN F.901 Usability Evaluation of Telecommunication Services - Operations and Quality of Service; Human Factors - General (Not Specific to Telephone Service) (Study Group I) 8 pp
ITU-T RECMN Q.2610 Usage of Cause and Location in B-ISDN User Part and DSS2 - Series Q: Switching and Signalling - Broadband ISDN - Common Aspects of B-ISDN Application Protocols for Access Signalling and Network Signalling and Interworking Study Group 11; 11 pp
ITU-T RECMN Q.850 ADD 1 Usage of Cause and Location in the Digital Subscriber Signalling System No. 1 and the Signalling System No. 7 ISDN User Part - Addendum 1 - Series Q: Switching and Signalling - Digital Subscriber Signalling System No. 1 - General Study Group 11
ITU-T RECMN Q.850 Usage of Cause and Location in the Digital Subscriber Signalling System No. 1 and the Signalling System No. 7 ISDN User Part - Digital Subscriber Signalling System No. 1 - General (Study Group XI) 25 pp (ETSI PRETS 300 485: 1995)
ITU-T RECMN Q.850 Usage of Cause and Location in the Digital Subscriber Signalling System No. 1 and the Signalling System No. 7 ISDN User Part - Series Q: Switching and Signalling - Digital Subscriber Signalling System No. 1 - General Study Group 11; 32 pp
ITU-R RECMN M.629 Use for the Radionavigation Service of the Frequency Bands 2900-3100 MHz, 5470-5650 MHz, 9200-9300 MHz, 9300-9500 MHz and 9500-9800 MHz
ITU-R RECMN M.629 Use for the Radionavigation Service of the Frequency Bands 2900-3100 MHz, 5470-5650 MHz, 9200-9300 MHz, 9300-9500 MHz and 9500-9800 MHz
ITU-R RECMN M.629 Use for the Radionavigation Service of the Frequency Bands 2900-3100 MHz, 5470-5650 MHz, 9200-9300 MHz, 9300-9500 MHz and 9500-9800 MHz - Section 8D - Radiodetermination, Global Maritime Distress and Safety System and Related Subjects
ITU-R RECMN M.820 Use of 9-Digit Identities for Narrow-Band Direct-Printing Telegraphy in the Maritime Mobile Service
ITU-R RECMN M.820 Use of 9-Digit Identities for Narrow-Band Direct-Printing Telegraphy in the Maritime Mobile Service
ITU-T RECMN J.73 Use of a 12-MHz System for the Simultaneous Transmission of Telephony and Television - Line Transmission of Non-Telephone Signals - Transmission of Sound-Programme and Television Signals (Study Group XV) 4 pp
ITU-T RECMN V.15 Use of Acoustic Coupling for Data Transmission - Data Communication over the Telephone Network (Study Group XVII) 2 pp
ITU-R RECMN S.1255 Use of Adaptive Uplink Power Control to Mitigate Codirectional Interference between Geostationary Satellite Orbit/Fixed-Satellite Service (GEO/FSS) Networks and Feeder Links of Non-Geostationary Satellite Orbit/Mobile Satellite Service (NON-GSO/MSS) Networks and between GSO/FSS Networks and NON-GSO/FSS Networks
ITU-T RECMN M.1235 Use of Automatically Generated Test Calls for Assessment of Network Performance - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and Data Transmission Systems (Study Group IV) 2 pp
ITU-T RECMN R.77 Use of Bearer Circuits for Voice-Frequency Telegraphy - Telegraph Transmission (Study Group IX) 4 pp
ITU-R RECMN BT.1199 Use of Bit-Rate Reduction in the HDTV Studio Environment
ITU-T RECMN M.250 Use of CCITT Man-Machine Language (MML) for Maintenance - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 3 pp
ITU-R RECMN V.663-1 Use of Certain Terms Linked with Physical Quantities - Section A - Terminology
ITU-T RECMN B.16 Use of Certain Terms Linked with Physical Quantities - Terms and Definitions Abbreviations and Acronyms Recommendations on Means of Expression (Series B) General Telecommunications Statistics (Series C) 5 pp
ITU-T RECMN M.800 Use of Circuits for Voice-Frequency Telegraphy - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and Data Transmission Systems Study Group IV; 4 pp
ITU-R OPINION 93 Use of Communications Satellites for a Service of Two-Way Time and Frequency Transfer Question ITU-R 201/7
ITU-R OPINION 93 Use of Communications Satellites for a Service of Two-Way Time and Frequency Transfer Question ITU-R 201/7
ITU-R RECMN PI.372-5 Use of Data on Radio Noise - Section 6B - Radio Noise
ITU-R RECMN SNG.1152 Use of Digital Transmission Techniques for Satellite News Gathering (SNG) (Sound)
ITU-R RECMN F.162-2 Use of Directional Antennas in the Bands 4 to 28 MHz - Section 3Ab - Antennas Characteristics
ITU-R RECMN F.162-3 Use of Directional Transmitting Antennas in the Fixed Service Operating in Bands Below About 30 MHz - Section 3Ab - Antenna Characteristics
ITU-T RECMN S.21 Use of Display Screens in Telex Machines - Telegraph Services Terminal Equipment (Study Group IX) 2 pp
ITU-T RECMN S.21 Use of Display Screens in Telex Machines - Telegraphy Alphabetical Telegraph Terminal Equipment (Study Group IX) 4 pp
ITU-R RECMN F.106-2 Use of Diversity for Voice-Frequency Telegraphy on HF Radio Circuits
ITU-R RECMN M.550-1 Use of Echo Suppressors in the Maritime Mobile-Satellite Service - Section 8I - Technical and Operating Characteristics of Mobile Satellite Services
ITU-T RECMN E.165.1 Use of Escape Code "O" within the E.164 Numbering Plan During the Transition Period to Implementation of NPI Mechanism - Series E: Telephone Network and ISDN Operation, Numbering, Routing and Mobile Services - International Operation - Numbering Plan of the International Telephone Service Study Group 2; 10 pp
ITU-R RECMN F.759 Use of Frequencies in the Band 500 to 3000 MHz for Radio-Relay Systems - Section 9F - Frequency Sharing with Other Services
ITU-R RECMN TF.767-2 Use of Global Navigation Satellite Systems for High-Accuracy Time Transfer
ITU-R RECMN F.520-1 Use of High Frequency Ionospheric Channel Simulators - Section 3Ac - Influence of the Ionosphere
ITU-R RECMN F.520-2 Use of High Frequency Ionospheric Channel Simulators - Section 3Ac - Influence of the Ionosphere
ITU-R RECMN F.520-1 Use of High Frequency Ionospheric Channel Simulators - Section 3Ac - Influence of the Ionosphere
ITU-R RECMN F.520-2 Use of High Frequency Ionospheric Channel Simulators - Section 3Ac - Influence of the Ionosphere
ITU-R RECMN F.520-1 Use of High Frequency Ionospheric Channel Simulators - Section 3Ac - Influence of the Ionosphere
ITU-R RECMN F.520-2 Use of High Frequency Ionospheric Channel Simulators - Section 3Ac - Influence of the Ionosphere
ITU-T RECMN J.87 Use of Hybrid Cable Television Links for the Secondary Distribution of Television into the User's Premises - Series J: Transmission of Television, Sound Programme and Other Multimedia Signals - Digital Transmission of Television Signals Study Group 9; 12 pp
ITU-R RECMN M.631-1 Use of Hyperbolic Maritime Radionavigation Systems in the Band 283.5-315 kHz
ITU-R RECMN M.631 Use of Hyperbolic Maritime Radionavigation Systems in the Band 283.5-315 kHz - Section 8D - Radiodetermination, Global Maritime Distress and Safety System and Related Subjects
ITU-R RECMN M.631-1 Use of Hyperbolic Maritime Radionavigation Systems in the Band 283.5-315 kHz - Section 8D - Radiodetermination, Global Maritime Distress and Safety System and Related Subjects
ITU-R RECMN SM.856 Use of Interference Cancellers, Screens and Adaptive Antennas
ITU-R RECMN F.613 Use of Ionospheric Channel Sounding Systems Operating in the Fixed Service at Frequencies Below About 30 MHz - Section 3Ac - Influence of the Ionosphere
ITU-R RECMN F.613 Use of Ionospheric Channel Sounding Systems Operating in the Fixed Service at Frequencies Below About 30 MHz - Section 3Ac - Influence of the Ionosphere
ITU-R RECMN F.613 Use of Ionospheric Channel Sounding Systems Operating in the Fixed Service at Frequencies Below About 30 MHz - Section 3Ac - Influence of the Ionosphere
ITU-T RECMN M.900 Use of Leased Group and Supergroup Links for Wide-Spectrum Signal Transmission (Data, Facsimile, Etc.) - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and Data Transmission Systems (Study Group IV) 4 pp
ITU-T RECMN G.451 Use of Radio Links in International Telephone Circuits - International Analogue Carrier Systems (Study Group XV) 3 pp
ITU-R RECMN F.335-2 Use of Radio Links in International Telephone Circuits - Section 3B - Radiotelephony
ITU-R RECMN 487 Use of Radio-Beacon Stations for Communications - Section 8D - Radiodetermination, Global Maritime Distress and Safety System and Related Subjects
ITU-R RECMN SM.508 Use of Radio-Noise Data in Spectrum Utilization Studies - Section 1D - Spectrum Utilization and Applications
ITU-T RECMN G.411 Use of Radio-Relay Systems for International Telephone Circuits - International Analogue Carrier Systems (Study Group XV) 1 pp
ITU-T RECMN U.23 Use of Radiotelegraph Circuits with ARQ Equipment for Fully Automatic Telex Calls Charged on the Basis of Elapsed Time - Telegraph Switching (Study Group IX) 4 pp
ITU-R RECMN SM.1055 Use of Spread Spectrum Techniques
ITU-T RECMN S.11 Use of Start-Stop Reperforating Equipment for Perforated Tape Retransmission - Telegraph Services Terminal Equipment (Study Group IX) 1 pp
ITU-R RECMN S.1001 Use of Systems in the Fixed-Satellite Service in the Event of Natural Disasters and Similar Emergencies for Warning and Relief Operations
ITU-R RECMN S.1001 Use of Systems in the Fixed-Satellite Service in the Event of Natural Disasters and Similar Emergencies for Warning and Relief Operations
ITU-T RECMN M.50 Use of Telecommunication Terms for Maintenance - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 1 pp
ITU-R RECMN BR.1290 Use of Television Disk Recording in Broadcasters' Operations
ITU-R RECMN SA.1071 Use of the 13.75 to 14.0 GHz Band by the Space Science Services** and the Fixed-Satellite Service
ITU-R RECMN M.1043 Use of the Amateur and Amateur-Satellite Services in Developing Countries
ITU-R RECMN M.1043-1 Use of the Amateur and Amateur-Satellite Services in Developing Countries
ITU-R RECMN V.574-3 Use of the Decibel and the Neper in Telecommunications - Section C - Other Means of Expression
ITU-T RECMN B.12 Use of the Decibel and the Neper in Telecommunications - Terms and Definitions Abbreviations and Acronyms Recommendations on Means of Expression (Series B) General Telecommunications Statistics (Series C) 12 pp
ITU-R RECMN M.1458 Use of the Frequency Bands between 2.8-22 MHz by the Aeronautical Mobile (R) Service for Data Transmission Using Class of Emission J2D
ITU-R RECMN TF.767 Use of the Global Positioning System (GPS) and the Global Navigation Satellite System (GLONASS) for High-Accuracy Time Transfer
ITU-R RECMN TF.767-1 Use of the Global Positioning System (GPS) and the Global Navigation Satellite System (GLONASS) for High-Accuracy Time Transfer
ITU-R RECMN V.430-3 Use of the International System of Units (SI) - Section C - Other Means of Expression
ITU-T RECMN B.3 Use of the International System of Units (SI) - Terms and Definitions Abbreviations and Acronyms Recommendations on Means of Expression (Series B) General Telecommunications Statistics (Series C) 2 pp
ITU-R RECMN M.1178 Use of the Maritime Radionavigation Band (283.5-315 kHz in Region 1 and 285-325 kHz in Regions 2 and 3)
ITU-R RECMN M.1178 Use of the Maritime Radionavigation Band (283.5-315 kHz in Region 1 and 285-325 kHz in Regions 2 and 3)
ITU-R RECMN TF.457-2 Use of the Modified Julian Date by the Standard-Frequency and Time-Signal Services
ITU-R RECMN TF.457-1 Use of the Modified Julian Date by the Standard-Frequency and Time-Signal Services - Section 7B - Specifications for the Standard-Frequency and Time-Signal Services
ITU-T RECMN S.15 Use of the Telex Network for Data Transmission at 50 Bauds - Telegraph Services Terminal Equipment (Study Group IX) 4 pp
ITU-R RECMN TF.535-2 Use of the Term UTC
ITU-R RECMN TF.535-1 Use of the Term UTC - Section 7B - Specifications for the Standard-Frequency and Time-Signal Services
ITU-R RECMN TF.485-2 Use of Time Scales in the Field of Standard-Frequency and Time Services - Section 7B - Specifications for the Standard-Frequency and Time-Signal Services
ITU-T RECMN L.38 Use of Trenchless Techniques for the Construction of Underground Infrastructures for Telecommunication Cable Installation - Series L: Construction, Installation and Protection of Cables and Other Elements of Outside Plant Study Group 6; 42 PP
ITU-R RECMN TF.486-2 Use of UTYC Frequency as Reference in Standard Requency and Time Signals Emissions
ITU-T RECMN F.30 Use of Various Sequences of Combinations for Special Purposes - Operations and Quality of Service; Telegraph Services (Study Group I) 5 pp
ITU-R RECMN BR.1357 Use of Wrappers and Metadata in Television Production
ITU-T RECMN X.220 Use of X.200-Series Protocols in CCITT Applications - Open Systems Interconnection - General Connection Mode Protocol Specifications (Study Group VII) 7 pp
ITU-T RECMN X.222 Use of X.25 LAPB Compatible Data Link Procedures to Provide the OSI Connection-Mode Data Link Service - Data Networks and Open Systems Communications - Open Systems Interconnection- Connection-Mode Protocol Specifications (Study Group 7) 13 pp
ITU-T RECMN X.222 AMD 1 Use of X.25 LAPB-Compatible Data Link Procedures to Provide the OSI Connection-Mode Data Link Service - Series X: Data Networks and Open System Communication Open System Interconnection - Connection-Mode Protocol Specifications Amendment 1: Frame Relay Mapping; Study Group 7; 10 pp
ITU-T RECMN X.223 Use of X.25 to Provide the OSI Connection-Mode Network Service for CCITT Applications - Data Communication Networks - Open Systems Interconnection (OSI) Protocol Specifications, Conformance Testing (Study Group VII) 30 pp
ITU-T RECMN X.223 Use of X.25 to Provide the OSI Connection-Mode Network Service for ITU-T Applications - Data Networks and Open System Communications Open Systems Interconnection-General Study Group 7; 42 pp
ITU-T RECMN X.223 AMD 1 Use of X.25 to Provide the OSI Connection-Mode Network Service for ITU-T Applications - Series X: Data Networks and Open System Communication Open System Interconnection - Connection-Mode Protocol Specifications Amendment 1: Transit Delay and Other Refinements; Study Group 7; 9 pp
ITU-T RECMN X.20 BIS Use on Public Data Networks of Data Terminal Equipment (DTE) Which is Designed for Interfacing to Asynchronous Duplex V-Series Modems - Data Communication Networks: Services and Facilities, Interfaces Study Group VII; 8 pp
ITU-T RECMN X.21 BIS Use on Public Data Networks of Data Terminal Equipment (DTE) Which is Designed for Interfacing to Synchronous V-Series Modems - Data Communication Networks: Services and Facilities, Interfaces (Study Group VII) 13 pp
ITU-T RECMN S.13 Use on Radio Circuits of 7-Unit Synchronous Systems Giving Error Correction by Automatic Repetition - Telegraph Services Terminal Equipment (Study Group IX) 8 pp
ITU-T RECMN E.330 User Control of ISDN-Supported Services - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 2 pp
ITU-T RECMN E.716 User Demand Modelling in Broadband-ISDN - Series E: Telephone Network and ISDN Quality of Service, Network Management and Traffic Engineering - Traffic Engineering - ISDN Traffic Engineering Study Group 2; 20 pp
ITU-T RECMN E.711 User Demand Modelling Study Group II) 11 pp
ITU-T RECMN X.144 User Information Transfer Performance Parameters for Data Networks Providing International Frame Relay PVC Service - Data Networks and Open System Communications - Public Data Networks - Network Aspects (Study Group 7) 31 pp
ITU-T RECMN X.144 AMD 1 User Information Transfer Performance Parameters for Data Networks Providing International Frame Relay PVC Service Amendment 1: Annex C - Some Relations between Frame-Level and ATM-Level Performance Parameters - Series X: Data Networks and Open System Communication - Public Data Networks - Network Aspects Study Group 7; 11 pp
ITU-T RECMN E.137 User Instructions for Payphones - Series E: Overall Network Operation, Telephone Service, Service Operation and Human Factors Operation, Numbering, Routing and Mobile Services - International Operation - General Provisions Concerning Users Study Group 2; 15 pp
ITU-T RECMN E.712 User Plane Traffic Modeling (Study Group II) 16 pp
ITU-R RECMN BR.1356 User Requirements for Application of Compression in Television Production
ITU-R RECMN BT.1437 User Requirements for Digital Coding for Multi-Programme Television Transmission
ITU-R RECMN BT.1122 User Requirements for Emission and Secondary Distribution Systems for SDTV, HDTV and Hierarchical Coding Schemes
ITU-R RECMN BT.1122-1 User Requirements for Emission and Secondary Distribution Systems for SDTV, HDTV and Hierarchical Coding Schemes
ITU-R RECMN BT.1203 User Requirements for Generic Bit-Rate Reduction Coding of Digital TV Signals (SDTV, EDTV and HDTV) for an End-to-End Television System
ITU-T RECMN J.143 User Requirements for Objective Perceptual Video Quality Measurements in Digital Cable Television Series J: Transmission of Television, Sound Programme and Other Multimedia Signals Measurement of the Quality of Service Study Group 9
ITU-R RECMN BT.1205 User Requirements for the Quality of Baseband SDTV and HDTV Signals When Transmitted by Digital Satellite News Gathering (SNG)
ITU-R RECMN BT.1121 User Requirements for the Transmission Through Contribution and Primary Distribution Networks of Digital HDTV Signals
ITU-R RECMN BT.1121-1 User Requirements for the Transmission Through Contribution and Primary Distribution Networks of Digital HDTV Signals
ITU-R RECMN BT.800 User Requirements for the Transmission Through Contribution and Primary Distribution Networks of Digital Television Signals Defined According to the 4:2:2 Standard of Recommendation 601
ITU-R RECMN BT.800-2 User Requirements for the Transmission Through Contribution and Primary Distribution Networks of Digital Television Signals Defined According to the 4:2:2 Standard of Recommendation ITU-R BT.601 (Part A)
ITU-T RECMN I.232. 3 User Signalling Bearer Service Category - Integrated Services Digital Network (ISDN) - General Structure and Service Capabilities (Study Group XVIII) 1 pp
ITU-T RECMN I.232. 3 User Signalling Bearer Service Category (USBS) - Integrated Services Digital Network (ISDN) - Service Capabilities - Bearer Services Supported by an ISDN (Study Group I) 16 pp
ITU-T RECMN Q.788 User-Network-Interface to User-Network-Interface Compatibility Test Specifications for ISDN, Non-ISDN and Undetermined Accesses Interworking over International ISUP - Series Q: Switching and Signalling Specifications of Signalling System No.7 - Test Specification Study Group 11; 241 pp
ITU-T RECMN Q.788 User-Network-Interface to User-Network-Interface Compatibility Test Specifications for ISDN, Non-ISDN and Undetermined Accesses Interworking over International ISUP - Specifications of Signalling System No. 7 (Study 11) 74 pp
ITU-R RECMN BR.1442 User's Requirements for Digital HDTV Tape Cassette Recorders
ITU-T RECMN T.135 User-to-Reservation System Transactions within T.120 Conferences - Series T: Terminals for Telematic Services Study Group 16; 78 pp
ITU-T RECMN I.257. 1 User-to-User Signalling (Study Group I) 18 pp
ITU-T RECMN I.257. 1 User-to-User Signalling (UUS) - Integrated Services Digital Network (ISDN) - Service Capabilities (Study Group 1) 19 pp
ITU-R RECMN S.1061 Utilization of Fade Countermeasures Strategies and Techniques in the Fixed-Satellite Service
ITU-T RECMN E.113 Validation Procedures for the International Telecommunications Charge Card Service - Series E: Overall Network Operation, Telephone Service, Service Operation and Human Factors Operation, Numbering, Routing and Mobile Services - International Operation - General Provisions Concerning Administrations Study Group 1; 15 pp
ITU-T RECMN E.113 Validation Procedures for the International Telecommunications Charge Card Service - Telephone Network and ISDN; Operation, Numbering, Routing and Mobile Service (Study Group I) 9 pp
ITU-T RECMN K.53 Values of Induced Voltages on Telecommunication Installations to Establish Telecom and A.C. Power and Railway Operators Responsibilites Series K: Protection Against Interference Study Group 5
ITU-T RECMN G.327 Valve-Type Systems Offering 12 Carrier Telephone Circuits on a Symmetric Cable Pair ((12 + 12) Systems) - International Analogue Carrier Systems Study Group XV; 2 pp; Cancelled
ITU-T RECMN SERIES G SUPP 38 Variable Bit Rate Calculations for ITU-T Recommendation G.767 Digital Circuit Multiplication Equipment (DCME) - Series G: Transmission Systems and Media, Digital Systems and Networks Study Group 15; 10 pp
ITU-T RECMN Q.832.1 VB5.1 Management - Series Q: Switching and Signalling - Specifications of Signalling System No. 7 - Q3 Interface Study Group 4; 52 pp
ITU-T RECMN Q.832.2 VB5.2 Management - Series Q: Switching and Signalling - Specifications of Signalling System No. 7 - Q3 Interface
ITU-T RECMN G.832.2 VB5.2 Management - Series Q: Switching and Signalling Specifications of Signalling System No. 7 - Q3 Interface Study Group 4; 41 pp
ITU-T RECMN E.180 SUPP 2 Verious Tones Used in National Networks - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service Supplement 2; Study Group I; 32 pp
ITU-R RECMN P.370-7 VHF and UHF Propagation Curves for the Frequency Range from 30 MHz to 1 000 MHz
ITU-R RECMN P.370-7 VHF and UHF Propagation Curves for the Frequency Range from 30 MHz to 1 000 MHz
ITU-R RECMN PN.370-6 VHF and UHF Propagation Curves for the Frequency Range from 30 MHz to 1 000 MHz
ITU-R RECMN PN.370-5 VHF and UHF Propagation Curves for the Frequency Range from 30 MHz to 1000 MHz. Broadcasting Services - Section 5D - Aspects Relative to the Terrestrial Broadcasting and Mobile Services
ITU-R RECMN S.354-2 Video Bandwidth and Permissible Noise Level in the Hypothetical Reference Circuit for the Fixed-Satellite Service - Section 4B2 - Performance and Availability
ITU-T RECMN H.261 Video Codec for Audiovisual Services at p x 64 kbit/s (Study Group XV) 30 pp
ITU-T RECMN H.261 Video Codec for Audiovisual Services at p x 64 kbits - Line Transmission of Non-Telephone Signals (Study Group XV) 28 pp
ITU-R RECMN BT.1208 Video Coding for Digital Terrestrial Television Broadcasting
ITU-R RECMN BT.1208-1 Video Coding for Digital Terrestrial Television Broadcasting
ITU-T RECMN H.263 Video Coding for Low Bit Rate Communication - Series H: Audiovisual and Multimedia Systems - Infrastructure of Audiovisual Services - Coding of Moving Video study Group 16; 168 pp
ITU-T RECMN H.263 APPENDIX I Video Coding for Low Bit Rate Communication - Series H: Audiovisual and Multimedia Systems Infrastructure of Audiovisual Services - Coding of Moving Video Appendix I: Error Tracking; Study Group 16; 7 pp
ITU-T RECMN H.263 Video Coding for Low Bit Rate Communication - Transmission of Non-Telephone Signals (Study Group 15) 51 pp
ITU-T RECMN F.730 Videoconference Service - General (Study Group I) 16 pp
ITU-R RECMN BT.472-3 Video-Frequency Characteristics of a Television System to Be Used for the International Exchange of Programmes between Countries That Have Adopted 625-Line Colour or Monochrome Systems - Section 11C - Control, Measurement and International Exchange of Television Programmes
ITU-T RECMN F.723 Videophone Service in the Public Switched Telephone Network (PSTN) - Series F: Non-Telephone Telecommunication Services; Audiovisual Services Study Group 1; 12 pp
ITU-T RECMN F.720 Videotelephony Services - General (Study Group I) 11 pp
ITU-T RECMN F.721 Videotelephony Teleservice for ISDN (Study Group I) 12 pp
ITU-T RECMN I.241. 5 Videotex - Integrated Services Digital Network (ISDN) - General Structure and Service Capabilities (Study Group XVIII) 4 pp
ITU-T RECMN F.300 Videotex Service - Telematic, Data Transmission and Teleconference Services - Operations and Quality of Service (Study Group I) 25 pp
ITU-T RECMN F.300 (REV 1) Videotex Service (Study Group I) 33 pp
ITU-R RECMN BR.1355 Viewing Conditions for Evaluating Television Display from Telecine Reproduction
ITU-R RECMN BR.1355-1 Viewing Conditions for Telecine Transfer of Film Images on a Television Display
ITU-T RECMN G.964 V-Interfaces at the Digital Local Exchange (LE) - V5.1-Interface (Based on 2048 kbit/s) for the Support of Access Network (AN) - Digital Sections and Digital Line Systems Study Group 13; 171 pp
ITU-T RECMN G.965 V-Interfaces at the Digital Local Exchange (LE) - V5.2 Interface (Based on 2048 kbit/s) for the Support of Access Network (AN) - Digital Sections and Digital Line Systems (Study Group 13) 162 pp
ITU-T RECMN G.967.1 V-Interfaces at the Service Node (SN): VB5.1 Reference Point Specification - Series G: Transmission Systems and Media, Digital Systems and Networks - Digital Transmission Systems - Digital Sections and Digital Line System - Digital Section and Digital Transmission Systems for Customer Access to ISDN Study Group 13; 196 pp
ITU-T RECMN G.967.2 V-Interfaces at the Service Node (SN): VB5.2 Reference Point Specification - Series G: Transmission Systems and Media, Digital Systems and Networks Digital Transmission Systems - Digital Sections and Digital Line System - Digital Section and Digital Transmission Systems for Customer Access to ISDN Study Group 13; 163 pp
ITU-T RECMN I.232. 1 Virtual Call and Permanent Virtual Circuit Bearer Service Category - Integrated Services Digital Network (ISDN) - General Structure and Service Capabilities (Study Group XVIII) 5 pp
ITU-T RECMN F.813 Virtual Path Service for Reserved and Permanent Communications - Operations and Quality of Service - ISDN Services (Study Group 1) 17 pp
ITU-T RECMN H.100 Visual Telephone Systems - Line Transmission of Non-Telephone Signals - Transmission of Sound-Programme and Television Signals (Study Group XV) 7 pp
ITU-T RECMN H.323 Visual Telephone Systems and Equipment for Local Area Networks Which Provide a Non-Guaranteed Quality of Service - Series H: Audiovisual and Multimedia Systems Infrastructure of Audiovisual Services - Systems and Terminal Equipment for Audiovisual Services Study Group 15; 80 pp
ITU-T RECMN H.322 Visual Telephone Systems and Terminal Equipment for Local Area Networks Which Provide a Guaranteed Quality of Service - Transmission of Non-Telephone Signals (Study Group 15) 11 pp
ITU-R RECMN V.SERIES Vocabulary and Related Subjects
ITU-R VOL 1997 V SERIES Vocabulary and Related Subjects
ITU-T RECMN G.701 Vocabulary of Digital Transmission and Multiplexing, and Pulse Code Modulation (PCM) Terms - General Aspects of Digital Transmission Systems; Terminal Equipments (Study Groups XV and XVIII) 34 pp
ITU-T RECMN G.701 Vocabulary of Digital Transmission and Multiplexing, and Pulse Code Modulation (PCM) Terms - General Aspects of Digital Transmissions Systems (Study Group XV) 40 pp
ITU-T RECMN Q.9 Vocabulary of Switching and Signalling Terms - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 82 pp
ITU-T RECMN I.113 Vocabulary of Terms for Broadband Aspects of ISDN - Integrated Services Digital Network (ISDN) - General Structure and Service Capabilities (Study Group XVIII) 10 pp
ITU-T RECMN I.113 Vocabulary of Terms for Broadband Aspects of ISDN - Integrated Services Digital Network (ISDN) General Structure Study Group 13; 28 pp
ITU-T RECMN I.113 Vocabulary of Terms for Broadband Aspects of ISDN - Series I: Integrated Services Digital Network General Structure - Terminology Study Group 13; 33 pp
ITU-T RECMN I.113 Vocabulary of Terms for Broadband Aspects of ISDN (Study Group XVIII) 22 pp
ITU-R RECMN M.1224 Vocabulary of Terms for Future Public Land Mobile Telecommunication Systems (FPLMTS)
ITU-R RECMN M.1224 Vocabulary of Terms for International Mobile Telecommunications-2000 (IMT-2000)
ITU-T RECMN I.112 Vocabulary of Terms for ISDNs - Integrated Services Digital Network (ISDN) - General Structure and Service Capabilities (Study Group XVIII) 13 pp
ITU-T RECMN I.112 (REV 1) Vocabulary of Terms for ISDNs (Study Group XVIII) 19 pp
ITU-T RECMN G.780 Vocabulary of Terms for Synchronous Digital Hierarchy (SDH) Networks and Equipment - General Aspects of Digital Transmission Systems Study Group 15; 7 pp
ITU-T RECMN G.780 Vocabulary of Terms for Synchronous Digital Hierarchy (SDH) Networks and Equipment Series G: Transmission Systems and Media, Digital Systems and Networks Digital Transmission Systems - Terminal Equipments - Principal Characteristics of Multiplexing Equipment for the Synchronous Digital Hierarchy Study Group 15; 33 pp
ITU-T RECMN I.114 Vocabulary of Terms for Universal Personal Telecommunication - Integrated Services Digital Network (ISDN); General Structure (Study Group XVIII) 7 pp
ITU-T RECMN P.10 Vocabulary of Terms on Telephone Transmission Quality and Telephone Sets - Series P: Telephone Transmission Quality, Telephone Installations, Local Line Networks Vocabulary and Effects of Transmission Parameters on Customer Opinion of Transmission Quality Study Group 12; 39 pp
ITU-T RECMN P.10 Vocabulary of Terms on Telephone Transmission Quality and Telephone Sets - Telephone Transmission Quality (Study Group XII) 12 pp
ITU-T RECMN P.10 Vocabulary of Terms on Telephone Transmission Quality and Telephone Sets - Telephone Transmission Quality Vocabulary and Effects of Transmission Parameters on Customer Opinion of Transmission Quality and Their Assessment Study Group XII; 18 pp
ITU-T RECMN G.764 Voice Packetization - Packetized Voice Protocols (Study Group XV) 24 pp
ITU-R RECMN F.106-1 Voice-Frequency Telegraphy on Radio Circuits - Section 3Ca - Radiotelegraph Circuits
ITU-T RECMN R.39 Voice-Frequency Telegraphy on Radio Circuits - Telegraph Transmission (Study Group IX) 3 pp
ITU-T RECMN O.51 Volume Meters - Specifications for Measuring Equipment Study Group IV; 1 pp; Cancelled; Same as Recmn P.52
ITU-T RECMN P.52 Volume Meters - Telephone Transmission Quality - Objective Measuring Apparatus (Study Group XII) 5 pp
ITU-T RECMN P.52 Volume Meters - Telephone Transmission Quality (Study Group XII) 3 pp (Same as Recmn O.51)
ITU-R RECMN P.836-2 Water Vapour: Surface Density and Total Columnar Content
ITU-R RECMN P.836-1 Water Vapour: Surface Density and Total Columnar Content
ITU-T RECMN G.641 Waveguide Diameters - Transmission Media Characteristics Study Group XV; 1 pp; Cancelled
ITU-R RECMN S.1067 Ways of Reducing the Interference from the Broadcasting-Satellite Service into the Fixed-Satellite Service in Adjacent Frequency Bands Around 12 GHz
ITU-R RECMN S.1066 Ways of Reducing the Interference from the Broadcasting-Satellite Service of One Region Into the Fixed-Satellite Service of Another Region Around 12 GHz
ITU-R RECMN V.35 Wideband Modems Data Transmission at 48 Kilobits Per Second Using 60-108 kHz Group Band Circuits
ITU-R RECMN BT.1119 Widescreen Signalling for Broadcasting (Signalling for Widescreen and Other Enhanced Television Parameters)
ITU-R RECMN BT.1119-1 Wide-Screen Signalling for Broadcasting (Signalling for Wide-Screen and Other Enhanced Television Parameters)
ITU-R RECMN BT.1119-2 Wide-Screen Signalling for Broadcasting (Signalling for Wide-Screen and Other Enhanced Television Parameters)
ITU-R REPORT M.2013 Wind Profiler Radars 16 pp
ITU-R REPORT M.2013 Wind Profiler Radars 16 pp
ITU-R HDBK VOL 1 WAL Wireless Access Local Loop Handbook on Land Mobile (Including Wireless Access) Volume 1
ITU-R HDBK VOL 1 WAL Wireless Access Local Loop Handbook on Land Mobile (Including Wireless Access) Volume 1
ITU-R RECMN M.1076 Wireless Communication Systems for Persons with Impaired Hearing
ITU-T RECMN A.1 Work Methods for Study Groups of the ITU Telecommunication Standardization Sector (ITU-T) 12 pp
ITU-R RECMN P.832-1 World Atlas of Ground Conductivites
ITU-R OPINION 91-1 World Atlas of Ground Conductivities
ITU-R RECMN P.832 World Atlas of Ground Conductivities
ITU-R RECMN P.832-2 World Atlas of Ground Conductivities
ITU-R OPINION 91-1 World Atlas of Ground Conductivities
ITU-R RECMN BT.1361 Worldwide Unified Colorimetery and Related Characteristics of Future Television and Imaging Systems
ITU-T RECMN C.1 Yearbook of Common Carrier Telecommunication Statistics - Terms and Definitions Abbreviations and Acronyms Recommendations on Means of Expression (Series B) General Telecommunications Statistics (Series C) 9 pp

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