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G.100	[Withdrawn] Definitions used in Recommendations on general characteristics of international telephone connections and circuits
G.100.1	The use of the decibel and of relative levels in speechband telecommunications
G.101	The transmission plan
G.102	Transmission performance objectives and Recommendations
G.103	Hypothetical reference connections
G.105	Hypothetical reference connection for crosstalk studies
G.107	The E-model: a computational model for use in transmission planning
G.107.1	Wideband E-model
G.107.2	Fullband E-model
G.108	Application of the E-model: A planning guide Covering note, November 2000: Erratum
G.108.1	Guidance for assessing conversational speech transmission quality effects not covered by the E-model
G.108.2	Transmission planning aspects of echo cancellers
G.109	Definition of categories of speech transmission quality
G.111	Loudness ratings (LRs) in an international connection
G.113	Transmission impairments due to speech processing
G.114	One-way transmission time
G.Imp114	G.114 Implementors' Guide
G.115	Mean active speech level for announcement and speech synthesis systems
G.116	Transmission performance objectives applicable to end-to-end international connections
G.117	Transmission aspects of unbalance about earth
G.120	Transmission characteristics of national networks
G.121	Loudness ratings (LRs) of national systems
G.122	Influence of national systems on stability and talker echo in international connections
G.123	[Withdrawn] Circuit noise in national networks The content of this Recommendation is now covered by ITU-T G.120
G.125	[Withdrawn] Characteristics of national circuits on carrier systems The content of this Recommendation is now covered by ITU-T G.120
G.126	Listener echo in telephone networks
G.131	Talker echo and its control
G.132	[Withdrawn] Attenuation distortion The content of this Recommendation is now covered by ITU-T G.120
G.133	[Withdrawn] Group-delay distortion The content of this Recommendation is now covered by ITU-T G.120
G.134	[Withdrawn] Linear crosstalk The content of this Recommendation is now covered by ITU-T G.120
G.135	[Withdrawn] Error on the reconstituted frequency The content of this Recommendation is now covered by ITU-T G.120
G.136	Application rules for Automatic Level Control Devices Covering note, May 2000: Erratum
G.141	[Withdrawn] Attenuation distortion The content of this Recommendation is now covered by ITU-T G.120
G.142	Transmission characteristics of exchanges
G.143	[Withdrawn] Circuit noise and the use of compandors Deleted because it deals with compandor transmission aspects, which use is no more recommended in networks
G.151	[Withdrawn] General performance objectives applicable to all modern international circuits and national extension circuits The content of this Recommendation is now covered by ITU-T G.120
G.152	[Withdrawn] Characteristics appropriate to long-distance circuits of a length not exceeding 2500 km The content of this Recommendation is now covered by ITU-T G.120
G.153	[Withdrawn] Characteristics appropriate to international circuits more than 2500 km in length The content of this Recommendation is now covered by ITU-T G.120
G.160	Voice enhancement devices
G.161	Interaction aspects of signal processing network equipment
G.161.1	Do-no-harm testing
G.162	[Withdrawn] Characteristics of compandors for telephony Deleted because it deals with compandor transmission aspects, which use is no more recommended in networks
G.163	[Withdrawn] Call concentrating systems Deleted after its content became technically out of date
G.164	Echo suppressors
G.165	Echo cancellers
G.166	[Withdrawn] Characteristics of syllabic compandors for telephony on high capacity long distance systems Deleted because it deals with compandor transmission aspects, which use is no more recommended in networks
G.167	[Withdrawn] Acoustic echo controllers
G.168	Digital network echo cancellers
G.Imp168	Implementors' Guide for ITU-T Recommendation G.168
G.169	Automatic level control devices
G.171	[Withdrawn] Transmission plan aspects of privately operated networks Deleted because it refers to obsolete Recommendations. For guidance on transmission planning or on private/public network interconnection, refer to ITU-T G.175 and G.108
G.172	Transmission plan aspects of international conference calls
G.173	Transmission planning aspects of the speech service in digital public land mobile networks
G.174	Transmission performance objectives for terrestrial digital wireless systems using portable terminals to access the PSTN
G.175	Transmission planning for private/public network interconnection of voice traffic
G.176	Planning guidelines for the integration of ATM technology into networks supporting voiceband services
G.177	Transmission planning for voiceband services over hybrid Internet/PSTN connections
G.180	Characteristics of N + M type direct transmission restoration systems for use on digital and analogue sections, links or equipment
G.181	Characteristics of 1 + 1 type restoration systems for use on digital transmission links
G.191	Software tools for speech and audio coding standardization
G.192	A common digital parallel interface for speech standardization activities
G.211	Make-up of a carrier link
G.212	Hypothetical reference circuits for analogue systems
G.213	Interconnection of systems in a main repeater station
G.214	Line stability of cable systems
G.215	Hypothetical reference circuit of 5000 km for analogue systems
G.221	Overall recommendations relating to carrier-transmission systems
G.222	Noise objectives for design of carrier-transmission systems of 2500 km
G.223	Assumptions for the calculation of noise on hypothetical reference circuits for telephony
G.224	Maximum permissible value for the absolute power level (power referred to one milliwatt) of a signalling pulse This Recommendation was formerly also included in Q series under number Q.16
G.225	Recommendations relating to the accuracy of carrier frequencies
G.226	Noise on a real link
G.227	Conventional telephone signal
G.228	Measurement of circuit noise in cable systems using a uniform-spectrum random noise loading
G.229	Unwanted modulation and phase jitter
G.230	Measuring methods for noise produced by modulating equipment and through-connection filters
G.231	Arrangement of carrier equipment
G.232	12-channel terminal equipments
G.233	Recommendations concerning translating equipments
G.234	[Withdrawn] 8-channel terminal equipments Deleted after its content became technically out of date
G.235	[Withdrawn] 16-channel terminal equipments Deleted after its content became technically out of date
G.241	Pilots on groups, supergroups, etc.
G.242	Through-connection of groups, supergroups, etc.
G.243	Protection of pilots and additional measuring frequencies at points where there is a through-connection
G.311	[Withdrawn] General characteristics of systems providing 12 carrier telephone circuits on an open-wire pair Deleted after its content became technically out of date
G.312	[Withdrawn] Intermediate repeaters for open-wire carrier systems conforming to Recommendation G.311 Deleted after its content became technically out of date
G.313	[Withdrawn] Open-wire lines for use with 12-channel carrier systems Deleted after its content became technically out of date
G.314	[Withdrawn] General characteristics of systems providing eight carrier telephone circuits on an open-wire pair Deleted after its content became technically out of date
G.322	General characteristics recommended for systems on symmetric pair cables
G.323	[Withdrawn] A typical transistorized system on symmetric cable pairs Deleted after its content became technically out of date
G.324	[Withdrawn] General characteristics for valve-type systems on symmetric cable pairs Deleted after its content became technically out of date
G.325	General characteristics recommended for systems providing 12 telephone carrier circuits on a symmetric cable pair [(12 + 12) systems]
G.326	[Withdrawn] Typical systems on symmetric cable pairs [(12 + 12) systems] Deleted after its content became technically out of date
G.327	[Withdrawn] Valve-type systems offering 12 carrier telephone circuits on a symmetric cable pair [(12 + 12) systems] Deleted after its content became technically out of date
G.332	12 MHz systems on standardized 2.6/9.5 mm coaxial cable pairs
G.333	60 MHz systems on standardized 2.6/9.5 mm coaxial cable pairs
G.334	18 MHz systems on standardized 2.6/9.5 mm coaxial cable pairs
G.337	[Withdrawn] General characteristics of systems on 2.6/9.5 mm coaxial cable pairs Deleted after its content became technically out of date
G.338	[Withdrawn] 4 MHz valve-type systems on standardized 2.6/9.5 mm coaxial cable pairs Deleted after its content became technically out of date
G.339	[Withdrawn] 12 MHz valve-type systems on standardized 2.6/9.5 mm coaxial cable pairs Deleted after its content became technically out of date
G.341	1.3 MHz systems on standardized 1.2/4.4 mm coaxial cable pairs
G.343	4 MHz systems on standardized 1.2/4.4 mm coaxial cable pairs
G.344	6 MHz systems on standardized 1.2/4.4 mm coaxial cable pairs
G.345	12 MHz systems on standardized 1.2/4.4 mm coaxial cable pairs
G.346	18 MHz systems on standardized 1.2/4.4 mm coaxial cable pairs
G.352	Interconnection of coaxial carrier systems of different designs
G.356	[Withdrawn] (120 + 120) channel systems on a single coaxial pair Deleted after its content became technically out of date
G.361	[Withdrawn] Systems providing three carrier telephone circuits on a pair of open-wire lines Deleted after its content became technically out of date
G.371	[Withdrawn] FDM carrier systems for submarine cable Deleted after its content became technically out of date
G.411	Use of radio-relay systems for international telephone circuits
G.412	[Withdrawn] Terminal equipments of radio-relay systems forming part of a general telecommunication network Deleted after its content became technically out of date
G.421	Methods of interconnection
G.422	Interconnection at audio-frequencies
G.423	Interconnection at the baseband frequencies of frequency-division multiplex radio-relay systems
G.431	Hypothetical reference circuits for frequency-division multiplex radio-relay systems
G.433	[Withdrawn] Hypothetical reference circuit for trans-horizon radio-relay systems for telephony using frequency-division multiplex Deleted after its content became technically out of date
G.434	[Withdrawn] Hypothetical reference circuit for systems using analogue transmission in the fixed-satellite service Deleted after its content became technically out of date
G.441	Permissible circuit noise on frequency-division multiplex radio-relay systems
G.442	Radio-relay system design objectives for noise at the far end of a hypothetical reference circuit with reference to telegraphy transmission
G.444	[Withdrawn] Allowable noise power in the hypothetical reference circuit of trans-horizon radio-relay systems for telephony using frequency-division multiplex Deleted after its content became technically out of date
G.445	[Withdrawn] Allowable noise power in the hypothetical reference circuit for frequency-division multiplex telephony in the fixed-satellite service Deleted after its content became technically out of date
G.451	Use of radio links in international telephone circuits
G.453	[Withdrawn] Improved transmission system for HF radio-telephone circuits Deleted after its content became technically out of date
G.464	[Withdrawn] Principles of the devices used to achieve privacy in radiotelephone conversations Deleted after its content became technically out of date
G.473	[Withdrawn] Interconnection of a maritime mobile satellite system with the international automatic switched telephone service; transmission aspects Withdrawn because it provided transmission planning information that was obsolete and no longer used
G.511	Test methodology for Group 3 facsimile processing equipment in the Public Switched Telephone Network This Recommendation was renumbered as ITU-T Rec. T.5 on 2002-02-15 without further modification
G.541	[Withdrawn] Specification of factory lengths of loaded telecommunication cable Deleted after its content became technically out of date
G.542	[Withdrawn] Specification of loading coils for loaded telecommunication cables Deleted after its content became technically out of date
G.543	[Withdrawn] Specification for repeater sections of loaded telecommunication cable Deleted after its content became technically out of date
G.544	[Withdrawn] Specifications for terminal equipment and intermediate repeater stations Deleted after its content became technically out of date
G.601	Terminology for cables
G.602	Reliability and availability of analogue cable transmission systems and associated equipments
G.611	Characteristics of symmetric cable pairs for analogue transmission
G.612	Characteristics of symmetric cable pairs designed for the transmission of systems with bit rates of the order of 6 to 34 Mbit/s
G.613	Characteristics of symmetric cable pairs usable wholly for the transmission of digital systems with a bit rate of up to 2 Mbit/s
G.614	Characteristics of symmetric pair star-quad cables designed earlier for analogue transmission systems and being used now for digital system transmission at bit rates of 6 to 34 Mbit/s
G.621	Characteristics of 0.7/2.9 mm coaxial cable pairs
G.622	Characteristics of 1.2/4.4 mm coaxial cable pairs
G.623	Characteristics of 2.6/9.5 mm coaxial cable pairs
G.631	Types of submarine cable to be used for systems with line frequencies of less than about 45 MHz
G.640	Co-location longitudinally compatible interfaces for free space optical systems
G.641	[Withdrawn] Waveguide diameters Deleted after its content became technically out of date
G.650	Definition and test methods for the relevant parameters of single-mode fibres
G.650.1	Definitions and test methods for linear, deterministic attributes of single-mode fibre and cable
G.650.2	Definitions and test methods for statistical and non-linear related attributes of single-mode fibre and cable
G.650.3	Test methods for installed single-mode optical fibre cable links
G.651	Characteristics of a 50/125 µm multimode graded index optical fibre cable ITU-T G.651 was withdrawn on 2008-08-16, its content having been obsoleted by the new ITU-T G.651.1 on multimode fibre applications in optical access networks
G.651.1	Characteristics of a 50/125 µm multimode graded index optical fibre cable for the optical access network
G.652	Characteristics of a single-mode optical fibre and cable
G.653	Characteristics of a dispersion-shifted, single-mode optical fibre and cable
G.654	Characteristics of a cut-off shifted single-mode optical fibre and cable
G.655	Characteristics of a non-zero dispersion-shifted single-mode optical fibre and cable
G.656	Characteristics of a fibre and cable with non-zero dispersion for wideband optical transport
G.657	Characteristics of a bending-loss insensitive single-mode optical fibre and cable
G.661	Definitions and test methods for the relevant generic parameters of optical amplifier devices and subsystems
G.662	Generic characteristics of optical amplifier devices and subsystems
G.663	Application-related aspects of optical amplifier devices and subsystems
G.664	Optical safety procedures and requirements for optical transmission systems
G.665	Generic characteristics of Raman amplifiers and Raman amplified subsystems
G.666	Characteristics of polarization mode dispersion compensators and of receivers that compensate for polarization mode dispersion
G.667	Characteristics of adaptive chromatic dispersion compensators
G.671	Transmission characteristics of optical components and subsystems
G.672	Characteristics of multi-degree reconfigurable optical add/drop multiplexers
G.680	Physical transfer functions of optical network elements
G.681	[Withdrawn] Functional characteristics of interoffice and long-haul line systems using optical amplifiers, including optical multiplexing
G.691	Optical interfaces for single channel STM-64 and other SDH systems with optical amplifiers
G.692	Optical interfaces for multichannel systems with optical amplifiers Covering note, 07.01.2000: Corrigendum 1
G.693	Optical interfaces for intra-office systems
G.694.1	Spectral grids for WDM applications: DWDM frequency grid
G.694.2	Spectral grids for WDM applications: CWDM wavelength grid
G.695	Optical interfaces for coarse wavelength division multiplexing applications
G.696.1	Longitudinally compatible intra-domain DWDM applications
G.697	Optical monitoring for dense wavelength division multiplexing systems
G.698.1	Multichannel DWDM applications with single-channel optical interfaces
G.698.2	Amplified multichannel dense wavelength division multiplexing applications with single channel optical interfaces
G.698.3	Multichannel seeded DWDM applications with single-channel optical interfaces
G.698.4	Multichannel bi-directional DWDM applications with port agnostic single-channel optical interfaces
G.698.5	Multichannel DWDM applications with single-channel optical interfaces in the O-band
G.698.6	Multichannel WDM applications with single-channel optical interfaces in the O-band
G.700	[Withdrawn] Framework of the series G.700, G.800 and G.900 Recommendations Deleted after its content became technically out of date
G.701	Vocabulary of digital transmission and multiplexing, and pulse code modulation (PCM) terms
G.702	Digital hierarchy bit rates
G.703	Physical/electrical characteristics of hierarchical digital interfaces
G.704	Synchronous frame structures used at 1544, 6312, 2048, 8448 and 44 736 kbit/s hierarchical levels
G.705	Characteristics of plesiochronous digital hierarchy (PDH) equipment functional blocks
G.706	Frame alignment and cyclic redundancy check (CRC) procedures relating to basic frame structures defined in Recommendation G.704
G.707	Network node interface for the synchronous digital hierarchy (SDH) Replaces 1993 versions of ITU-T G.707, G.708, G.709.
G.Imp707	Implementers' Guide for Recommendation ITU-T G.707/Y.1322 (07/2007) - Definitions and terms found in Recommendation ITU T G.707/Y.1322
G.708	Sub STM-0 network node interface for the synchronous digital hierarchy (SDH)
G.709	Interfaces for the optical transport network
G.709.1	Flexible OTN common elements
G.709.2	OTU4 long-reach interface
G.709.3	Flexible OTN long-reach interfaces
G.709.4	OTU25 and OTU50 short-reach interfaces
G.709.5	Flexible OTN short-reach interfaces
G.709.6	Flexible OTN B400G long-reach interfaces
G.709.20	Overview of fine grain OTN
G.Imp709	Implementers' Guide
G.711.0	Lossless compression of G.711 pulse code modulation
G.711	Pulse code modulation (PCM) of voice frequencies Corresponding ANSI-C code is available in the G.711 module of the ITU-T G.191 Software Tools Library.
G.711.1	Wideband embedded extension for ITU-T G.711 pulse code modulation
G.Imp712	Implementers' Guide for Recommendation ITU-T G.712
G.712	Transmission performance characteristics of pulse code modulation channels Replaces G.712, G.713, G.714, G.715
G.713	[Withdrawn] Performance characteristics of PCM channels between 2-wire interfaces at voice frequencies The content of this Recommendation is now covered by ITU-T G.712
G.714	[Withdrawn] Separate performance characteristics for the encoding and decoding sides of PCM channels applicable to 4-wire voice-frequency interfaces The content of this Recommendation is now covered by ITU-T G.712
G.715	[Withdrawn] Separate performance characteristics for the encoding and decoding side of PCM channels applicable to 2-wire interfaces The content of this Recommendation is now covered by ITU-T G.712
G.718	Frame error robust narrow-band and wideband embedded variable bit-rate coding of speech and audio from 8-32 kbit/s
G.719	Low-complexity, full-band audio coding for high-quality, conversational applications
G.720	Characterization of low-rate digital voice coder performance with non-voice signals
G.720.1	Generic sound activity detector
G.721	[Withdrawn] 32 kbit/s adaptive differential pulse code modulation (ADPCM) The content of this Recommendation is now covered by ITU-T G.726
G.722	7 kHz audio-coding within 64 kbit/s
G.722.1	Low-complexity coding at 24 and 32 kbit/s for hands-free operation in systems with low frame loss
G.722.2	Wideband coding of speech at around 16 kbit/s using Adaptive Multi-Rate Wideband (AMR-WB)
G.Imp722.1	Implementors' Guide for G.722.1 Main Body and Annex B: (Coding at 24 and 32 kbit/s for hands-free operation in systems with low frame loss)
G.Imp722.2	Implementors' Guide for G.722.2: (Wideband coding of speech at around 16 kbit/s using Adaptive Multi-rate Wideband, AMR-WB)
G.723	[Withdrawn] Extensions of Recommendation G.721 adaptive differential pulse code modulation to 24 and 40 kbit/s for digital circuit multiplication equipment application The content of 1988 edition of ITU-T G.723 is now covered by ITU-T G.726
G.723.1	Dual rate speech coder for multimedia communications transmitting at 5.3 and 6.3 kbit/s
G.Imp723.1	Implementors' Guide for G.723.1: (Dual rate speech coder for multimedia communications transmitting at 5.3 & 6.3 kbit/s)
G.724	Characteristics of a 48-channel low bit rate encoding primary multiplex operating at 1544 kbit/s
G.725	System aspects for the use of the 7 kHz audio codec within 64 kbit/s
G.726	40, 32, 24, 16 kbit/s Adaptive Differential Pulse Code Modulation (ADPCM) Corresponding ANSI-C code is available in the G.726 module of the ITU-T G.191 Software Tools Library
G.727	5-, 4-, 3- and 2-bit/sample embedded adaptive differential pulse code modulation (ADPCM) The corresponding ANSI-C code is available in the G.727 module of the ITU-T G.191 Software Tools Library
G.728	Coding of speech at 16 kbit/s using low-delay code excited linear prediction The corresponding ANSI-C code is available in the G.728 module of the ITU-T G.191 Software Tools Library
G.Imp728	Implementors' Guide for ITU-T Recommendation G.728 ("Coding of speech at 16 kbit/s using low-delay code excited linear prediction")
G.Imp729	Implementers' Guide for Recommendation ITU-T G.729 (2012) "Coding of speech at 8 kbit/s using CS-ACELP"
G.729	Coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited linear prediction (CS-ACELP)
G.729.1	G.729-based embedded variable bit-rate coder: An 8-32 kbit/s scalable wideband coder bitstream interoperable with G.729
G.731	Primary PCM multiplex equipment for voice frequencies
G.732	Characteristics of primary PCM multiplex equipment operating at 2048 kbit/s
G.733	Characteristics of primary PCM multiplex equipment operating at 1544 kbit/s
G.734	Characteristics of synchronous digital multiplex equipment operating at 1544 kbit/s
G.735	Characteristics of primary PCM multiplex equipment operating at 2048 kbit/s and offering synchronous digital access at 384 kbit/s and/or 64 kbit/s
G.736	Characteristics of a synchronous digital multiplex equipment operating at 2048 kbit/s
G.737	Characteristics of an external access equipment operating at 2048 kbit/s offering synchronous digital access at 384 kbit/s and/or 64 kbit/s
G.738	Characteristics of primary PCM multiplex equipment operating at 2048 kbit/s and offering synchronous digital access at 320 kbit/s and/or 64 kbit/s
G.739	Characteristics of an external access equipment operating at 2048 kbit/s offering synchronous digital access at 320 kbit/s and/or 64 kbit/s
G.741	General considerations on second order multiplex equipments
G.742	Second order digital multiplex equipment operating at 8448 kbit/s and using positive justification
G.743	Second order digital multiplex equipment operating at 6312 kbit/s and using positive justification
G.744	Second order PCM multiplex equipment operating at 8448 kbit/s
G.745	Second order digital multiplex equipment operating at 8448 kbit/s and using positive/zero/negative justification
G.746	Characteristics of second order PCM multiplex equipment operating at 6312 kbit/s
G.747	Second order digital multiplex equipment operating at 6312 kbit/s and multiplexing three tributaries at 2048 kbit/s
G.751	Digital multiplex equipments operating at the third order bit rate of 34 368 kbit/s and the fourth order bit rate of 139 264 kbit/s and using positive justification
G.752	Characteristics of digital multiplex equipments based on a second order bit rate of 6312 kbit/s and using positive justification
G.753	Third order digital multiplex equipment operating at 34 368 kbit/s and using positive/zero/negative justification
G.754	Fourth order digital multiplex equipment operating at 139 264 kbit/s and using positive/zero/negative justification
G.755	Digital multiplex equipment operating at 139 264 kbit/s and multiplexing three tributaries at 44 736 kbit/s
G.761	General characteristics of a 60-channel transcoder equipment
G.762	General characteristics of a 48-channel transcoder equipment
G.763	Digital circuit multiplication equipment using G.726 ADPCM and digital speech interpolation This Recommendation includes 2 diskettes. The first one contains A-Law and m-Law test vectors for DCME verification. The second one contains example transmit/receive SDLs. Covering note, May 2000: Erratum
G.Imp763	Implementor's Guide for Recommendation G.763
G.764	Voice packetization - Packetized voice protocols
G.765	Packet circuit multiplication equipment
G.766	Facsimile demodulation/remodulation for digital circuit multiplication equipment
G.767	Digital circuit multiplication equipment using 16 kbit/s LD-CELP, digital speech interpolation and facsimile demodulation/remodulation
G.Imp767	Implementor's Guide for Recommendation G.767
G.768	Digital circuit multiplication equipment using 8 kbit/s CS-ACELP
G.769	Circuit multiplication equipment optimized for IP-based networks
G.771	[Withdrawn] Q-interfaces and associated protocols for transmission equipment in the TMN Deleted after its content became technically out of date
G.772	Protected monitoring points provided on digital transmission systems
G.773	Protocol suites for Q-interfaces for management of transmission systems
G.Imp773	Implementers' Guide for Recommendation ITU-T G.773
G.774	Synchronous digital hierarchy (SDH) - Management information model for the network element view
G.774.1	Synchronous digital hierarchy (SDH) - Bidirectional performance monitoring for the network element view
G.774.2	Synchronous digital hierarchy (SDH) - Configuration of the payload structure for the network element view
G.774.02	Synchronous digital hierarchy (SDH) configuration of the payload structure for the network element view
G.774.03	Synchronous digital hierarchy (SDH) management of multiplex-section protection for the network element view
G.774.3	Synchronous digital hierarchy (SDH) - Management of multiplex-section protection for the network element view
G.774.4	Synchronous digital hierarchy (SDH) - Management of the subnetwork connection protection for the network element view
G.774.04	Synchronous digital hierarchy (SDH) management of the subnetwork connection protection for the network element view
G.774.05	Synchronous Digital Hierarchy (SDH) management of connection supervision functionality (HCS/LCS) for the network element view
G.774.5	Synchronous digital hierarchy (SDH) - Management of connection supervision functionality (HCS/LCS) for the network element view
G.774.6	Synchronous digital hierarchy (SDH) - Unidirectional performance monitoring for the network element view
G.774.7	Synchronous digital hierarchy (SDH) - Management of lower order path trace and interface labelling for the network element view
G.774.8	Synchronous digital hierarchy (SDH) - Management of radio-relay systems for the network element view
G.774.9	Synchronous digital hierarchy (SDH) - Configuration of linear multiplex-section protection for the network element view
G.774.10	Synchronous digital hierarchy (SDH) - Multiplex Section (MS) shared protection ring management for the network element view
G.775	Loss of Signal (LOS), Alarm Indication Signal (AIS) and Remote Defect Indication (RDI) defect detection and clearance criteria for PDH signals
G.776.1	Managed objects for signal processing network elements This Recommendation includes one diskette containing the information model of Signal Processing Network Elements (SPNE).
G.776.2	SPNE mechanisms/auxiliary functions
G.776.3	ADPCM DCME configuration map report
G.776.4	Signal processing network equipment
G.Imp776.1	Implementor's Guide for Recommendation G.776.1
G.780	Terms and definitions for synchronous digital hierarchy (SDH) networks
G.781	Synchronization layer functions for frequency synchronization based on the physical layer
G.781W	[Withdrawn] Structure of Recommendations on equipment for the synchronous digital hierarchy (SDH) Merged with ITU-T Rec. G.783 in 1997
G.781.1	Synchronization layer functions for packet-based synchronization
G.782	[Withdrawn] Types and general characteristics of synchronous digital hierarchy (SDH) equipment Merged with ITU-T G.783 in 1997
G.783	Characteristics of synchronous digital hierarchy (SDH) equipment functional blocks
G.784	Management aspects of synchronous digital hierarchy (SDH) transport network elements
G.785	Characteristics of a flexible multiplexer in a synchronous digital hierarchy environment
G.791	General considerations on transmultiplexing equipments
G.792	Characteristics common to all transmultiplexing equipments
G.793	Characteristics of 60-channel transmultiplexing equipments
G.794	Characteristics of 24-channel transmultiplexing equipments
G.795	Characteristics of codecs for FDM assemblies
G.796	Characteristics of a 64 kbit/s cross-connect equipment with 2048 kbit/s access ports
G.797	Characteristics of a flexible multiplexer in a plesiochronous digital hierarchy environment
G.798	Characteristics of optical transport network hierarchy equipment functional blocks
G.798.1	Types and characteristics of optical transport network equipment
G.Imp798	Implementers' Guide
G.799.1	Functionality and interface specifications for GSTN transport network equipment for interconnecting GSTN and IP networks
G.799.2	Mechanism for dynamic coordination of signal processing functions
G.799.3	Signal processing functionality and performance of an IP-to-IP voice gateway optimised for the transport of voice and voiceband data
G.799.4	Procedures for the control of de-jitter buffers used in PSTN-IP gateways carrying voiceband data
G.800	Unified functional architecture of transport networks
G.801	Digital transmission models
G.802	Interworking between networks based on different digital hierarchies and speech encoding laws
G.803	Architecture of transport networks based on the synchronous digital hierarchy (SDH)
G.804	ATM cell mapping into plesiochronous digital hierarchy (PDH)
G.805	Generic functional architecture of transport networks
G.806	Characteristics of transport equipment - Description methodology and generic functionality - Amendment 1
G.807	Generic functional architecture of the optical media layer
G.Imp807	Implementers' Guide
G.808	Terms and definitions for network protection and restoration
G.Imp808.1	Implementers' Guide for Recommendation ITU-T G.808.1 (05/2014)
G.808.1	Generic protection switching - Linear trail and subnetwork protection
G.808.2	Generic protection switching - Ring protection
G.808.3	Generic protection switching - Shared mesh protection
G.808.4	Linear protection for fine grain metro transport network (fgMTN) and fine grain optical transport network (fgOTN)
G.809	Functional architecture of connectionless layer networks
G.810	Definitions and terminology for synchronization networks
G.811	Timing characteristics of primary reference clocks
G.811.1	Timing characteristics of enhanced primary reference clocks
G.812	Timing requirements of slave clocks suitable for use as node clocks in synchronization networks
G.813	Timing characteristics of SDH equipment slave clocks (SEC)
G.820	Relationships among ISDN, IP-based network and physical layer performance Recommendations Formerly ITU-T Rec. I.351/Y.801/Y.1501
G.821	Error performance of an international digital connection operating at a bit rate below the primary rate and forming part of an Integrated Services Digital Network
G.822	Controlled slip rate objectives on an international digital connection
G.823	The control of jitter and wander within digital networks which are based on the 2048 kbit/s hierarchy
G.824	The control of jitter and wander within digital networks which are based on the 1544 kbit/s hierarchy
G.825	The control of jitter and wander within digital networks which are based on the synchronous digital hierarchy (SDH)
G.826	End-to-end error performance parameters and objectives for international, constant bit-rate digital paths and connections
G.827	Availability performance parameters and objectives for end-to-end international constant bit-rate digital paths
G.827.1	[Withdrawn] Availability performance objectives for end-to-end international constant bit-rate digital paths at or above the primary rate
G.828	Error performance parameters and objectives for international, constant bit-rate synchronous digital paths
G.829	Error performance events for SDH multiplex and regenerator sections
G.831	Management capabilities of transport networks based on the synchronous digital hierarchy (SDH)
G.832	Transport of SDH elements on PDH networks - Frame and multiplexing structures
G.841	Types and characteristics of SDH network protection architectures
G.842	Interworking of SDH network protection architectures
G.Imp850	G.850-Series TMN Implementors' Guide - Defects and Resolutions
G.851.1	Management of the transport network - Application of the RM-ODP framework
G.852.1	Enterprise viewpoint for simple subnetwork connection management
G.852.2	Enterprise viewpoint description of transport network resource model
G.852.3	Enterprise viewpoint for topology management
G.852.6	Enterprise viewpoint for trail management
G.852.8	Enterprise viewpoint for pre-provisioned adaptation management
G.852.10	Enterprise viewpoint for pre-provisioned link connection management
G.852.12	Enterprise viewpoint for pre-provisioned link management
G.852.16	Enterprise viewpoint for pre-provisioned route discovery
G.853.1	Common elements of the information viewpoint for the management of a transport network
G.853.2	Subnetwork connection management information viewpoint
G.853.3	Information viewpoint for topology management
G.853.6	Information viewpoint for trail management
G.853.8	Information viewpoint for pre-provisioned adaptation management
G.853.10	Information viewpoint for pre-provisioned link connection management
G.853.12	Information viewpoint for pre-provisioned link management
G.853.16	Information viewpoint for pre-provisioned route discovery
G.854.1	Computational interfaces for basic transport network model
G.854.3	Computational viewpoint for topology management
G.854.6	Computational viewpoint for trail management
G.854.8	Computational viewpoint for pre-provisioned adaptation management
G.854.10	Computational viewpoint for pre-provisioned link connection management
G.854.12	Computational viewpoint for pre-provisioned link management
G.854.16	Computational viewpoint for pre-provisioned route discovery
G.855.1	GDMO engineering viewpoint for the generic network level model
G.861	Principles and guidelines for the integration of satellite and radio systems in SDH transport networks
G.870	Terms and definitions for optical transport networks
G.871	Framework of Optical Transport Network Recommendations
G.Imp871	Implementers' Guide for Recommendation ITU-T G.871/Y.1301 (10/2000)
G.872	Architecture of the optical transport network
G.Imp872	Implementers' Guide
G.873.1	Optical transport network: Linear protection
G.873.2	ODUk shared ring protection
G.873.3	Optical transport network - Shared mesh protection
G.Imp873.1	Implementers' Guide
G.874	Management aspects of optical transport network elements
G.874.1	Optical transport network: Protocol-neutral management information model for the network element view
G.Imp874	Implementers' Guide
G.Imp874.1	Implementers' Guide for Recommendation ITU-T G.874.1 (01/2002)
G.875	Optical transport network: Protocol-neutral management information model for the network element view
G.876	Management requirements and information model for the optical media network
G.901	General considerations on digital sections and digital line systems
G.902	Framework Recommendation on functional access networks (AN) - Architecture and functions, access types, management and service node aspects
G.911	Parameters and calculation methodologies for reliability and availability of fibre optic systems
G.921	Digital sections based on the 2048 kbit/s hierarchy
G.931	[Withdrawn] Digital line sections at 3152 kbit/s
G.941	Digital line systems provided by FDM transmission bearers
G.950	General considerations on digital line systems
G.951	Digital line systems based on the 1544 kbit/s hierarchy on symmetric pair cables
G.952	Digital line systems based on the 2048 kbit/s hierarchy on symmetric pair cables
G.953	Digital line systems based on the 1544 kbit/s hierarchy on coaxial pair cables
G.954	Digital line systems based on the 2048 kbit/s hierarchy on coaxial pair cables
G.955	Digital line systems based on the 1544 kbit/s and the 2048 kbit/s hierarchy on optical fibre cables
G.956	[Withdrawn] Digital line systems based on the 2048 kbit/s hierarchy on optical fibre cables The content of this Recommendation is now covered by ITU-T G.955
G.957	Optical interfaces for equipments and systems relating to the synchronous digital hierarchy
G.958	[Withdrawn] Digital line systems based on the synchronous digital hierarchy for use on optical fibre cables
G.959.1	Optical transport network physical layer interfaces
G.960	Access digital section for ISDN basic rate access
G.961	Digital transmission system on metallic local lines for ISDN basic rate access Covering note, 1st August 2000: Corrigendum 1
G.962	Access digital section for ISDN primary rate at 2048 kbit/s
G.963	Access digital section for ISDN primary rate at 1544 kbit/s
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)
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)
G.966	Access digital section for B-ISDN
G.967.1	V-interfaces at the service node (SN) : VB5.1 reference point specification This Recommendation includes one diskette containing the SDL process diagrams corresponding to the VB5.1 reference point.
G.967.2	V-interfaces at the service node (SN) : VB5.2 reference point specification This Recommendation includes one diskette containing the SDL process diagrams corresponding to the VB5.2 reference point.
G.967.3	V-interfaces at the service node (SN) : Protocol implementation conformance statements for interfaces at VB5 reference points
G.971	General features of optical fibre submarine cable systems
G.972	Definition of terms relevant to optical fibre submarine cable systems
G.973	Characteristics of repeaterless optical fibre submarine cable systems
G.973.1	Longitudinally compatible DWDM applications for repeaterless optical fibre submarine cable systems
G.973.2	Multichannel DWDM applications with single channel optical interfaces for repeaterless optical fibre submarine cable systems
G.974	Characteristics of regenerative optical fibre submarine cable systems
G.975	Forward error correction for submarine systems
G.975.1	Forward error correction for high bit-rate DWDM submarine systems
G.976	Test methods applicable to optical fibre submarine cable systems
G.977	Characteristics of optically amplified optical fibre submarine cable systems
G.977.1	Transverse compatible dense wavelength division multiplexing applications for repeatered optical fibre submarine cable systems
G.978	Characteristics of optical fibre submarine cables
G.979	Characteristics of monitoring systems for optical submarine cable systems
G.981	PDH optical line systems for the local network
G.982	Optical access networks to support services up to the ISDN primary rate or equivalent bit rates
G.983.1	Broadband optical access systems based on Passive Optical Networks (PON)
G.983.2	ONT management and control interface specification for B-PON
G.Imp983.2	Implementers' Guide for Recommendation ITU-T G.983.2 (07/2005)
G.983.3	A broadband optical access system with increased service capability by wavelength allocation
G.983.4	A broadband optical access system with increased service capability using dynamic bandwidth assignment
G.983.5	A broadband optical access system with enhanced survivability
G.983.6	[Withdrawn] ONT management and control interface specifications for B-PON system with protection features Deleted on 2006-05-22, the material of ITU-T Recs G.983.6, G.983.7, G.983.8, G.983.9 and G.983.10 having been incorporated in ITU-T Rec. G.983.2 (2005)
G.983.7	[Withdrawn] ONT management and control interface specification for Dynamic Bandwidth Assignment (DBA) B-PON system Deleted on 2006-05-22, the material of ITU-T Recs G.983.6, G.983.7, G.983.8, G.983.9 and G.983.10 having been incorporated in ITU-T Rec. G.983.2 (2005)
G.983.8	[Withdrawn] B-PON OMCI support for IP, ISDN, video, VLAN tagging, VC cross-connections and other select functions Deleted on 2006-05-22, the material of ITU-T Recs G.983.6, G.983.7, G.983.8, G.983.9 and G.983.10 having been incorporated in ITU-T Rec. G.983.2 (2005)
G.983.9	[Withdrawn] B-PON ONT management and control interface (OMCI) support for wireless Local Area Network interfaces Deleted on 2006-05-22, the material of ITU-T Recs G.983.6, G.983.7, G.983.8, G.983.9 and G.983.10 having been incorporated in ITU-T Rec. G.983.2 (2005)
G.983.10	[Withdrawn] B-PON ONT management and control interface (OMCI) support for Digital Subscriber Line interfaces Deleted on 2006-05-22, the material of ITU-T Recs G.983.6, G.983.7, G.983.8, G.983.9 and G.983.10 having been incorporated in ITU-T Rec. G.983.2 (2005)
G.984.1	Gigabit-capable passive optical networks (GPON): General characteristics
G.984.2	Gigabit-capable Passive Optical Networks (G-PON): Physical Media Dependent (PMD) layer specification
G.984.3	Gigabit-capable passive optical networks (G-PON): Transmission convergence layer specification
G.984.4	Gigabit-capable passive optical networks (G-PON): ONT management and control interface specification
G.Imp.984.4	Implementers' Guide for Recommendation ITU-T G.984.4
G.984.5	Gigabit-capable passive optical networks (G-PON): Enhancement band
G.984.6	Gigabit-capable passive optical networks (GPON): Reach extension
G.984.7	Gigabit-capable passive optical networks (GPON): Long reach
G.Imp984.3	Implementers' Guide for ITU-T Rec. G.984.3 (02/2004)
G.985	100 Mbit/s point-to-point Ethernet based optical access system
G.986	1 Gbit/s point-to-point Ethernet-based optical access system
G.987	10-Gigabit-capable passive optical network (XG-PON) systems: Definitions, abbreviations and acronyms
G.987.1	10-Gigabit-capable passive optical networks (XG-PON): General requirements
G.987.2	10-Gigabit-capable passive optical networks (XG-PON): Physical media dependent (PMD) layer specification
G.987.3	10-Gigabit-capable passive optical networks (XG-PON): Transmission convergence (TC) layer specification
G.987.4	10-Gigabit-capable passive optical networks (XG-PON): Reach extension
G.988	ONU management and control interface (OMCI) specification
G.989	40-Gigabit-capable passive optical networks (NG-PON2): Definitions, abbreviations and acronyms
G.989.1	40-Gigabit-capable passive optical networks (NG-PON2): General requirements
G.989.2	40-Gigabit-capable passive optical networks 2 (NG-PON2): Physical media dependent (PMD) layer specification
G.989.3	40-Gigabit-capable passive optical networks (NG-PON2): Transmission convergence layer specification
G.991.1	High bit rate digital subscriber line (HDSL) transceivers
G.991.2	Single-pair high-speed digital subscriber line (SHDSL) transceivers
G.992.1	Asymmetric digital subscriber line (ADSL) transceivers
G.992.2	Splitterless asymmetric digital subscriber line (ADSL) transceivers
G.992.3	Asymmetric digital subscriber line transceivers 2 (ADSL2)
G.992.4	Splitterless asymmetric digital subscriber line transceivers 2 (splitterless ADSL2)
G.992.5	Asymmetric digital subscriber line 2 transceivers (ADSL2)- Extended bandwidth ADSL2 (ADSL2plus)
G.993.1	Very high speed digital subscriber line transceivers (VDSL)
G.993.2	Very high speed digital subscriber line transceivers 2 (VDSL2)
G.993.5	Self-FEXT cancellation (vectoring) for use with VDSL2 transceivers
G.994.1	Handshake procedures for digital subscriber line transceivers
G.995.1	Overview of digital subscriber line (DSL) Recommendations This Recommendation was deleted on 2011-12-16. The material contained in Recommendation ITU-T G.995.1 (2001) is now considered obsolete and this material needs to be updated. Due to the non-normative nature of the revised text, the updated material was agreed as a new Supplement 50 to ITU-T G-series Recommendations.
G.995.2	Enhanced common mode limits and measurement methods for customer premises equipment operating on copper pairs
G.996.1	Test procedures for digital subscriber line (DSL) transceivers
G.996.2	Single-ended line testing for digital subscriber lines
G.997.1	Physical layer management for digital subscriber line transceivers
G.997.2	Physical layer management for G.fast transceivers
G.997.3	Physical layer management for MGfast transceivers
G.998.1	ATM-based multi-pair bonding
G.998.2	Ethernet-based multi-pair bonding
G.998.3	Multi-pair bonding using time-division inverse multiplexing
G.998.4	Improved impulse noise protection for digital subscriber line (DSL) transceivers
G.999.1	Interface between the link layer and the physical layer for digital subscriber line (DSL) transceivers
G.1000	Communications Quality of Service: A framework and definitions
G.1010	End-user multimedia QoS categories
G.1011	Reference guide to quality of experience assessment methodologies
G.1020	Performance parameter definitions for quality of speech and other voiceband applications utilizing IP networks
G.1021	Buffer models for development of client performance metrics
G.1022	Buffer models for media streams on TCP transport
G.1023	Framework for capacity assessment of packet data services in mobile networks
G.1027	Quality of service metrics for the assessment of the impact of fixed geographic structures on telephony quality and call stability
G.1028	End-to-end quality of service for voice over 4G mobile networks
G.1028.1	End-to-end quality of service for video telephony over 4G mobile networks
G.1028.2	Assessment of the LTE circuit switched fall back - Impact on voice quality of service
G.Imp1028	Implementers' Guide for ITU-T Rec. G.1028 (06/2016)
G.1029	Voice service diagnosis framework
G.1030	Estimating end-to-end performance in IP networks for data applications
G.1031	QoE factors in web-browsing
G.1032	Influence factors on gaming quality of experience
G.1033	Quality of service and quality of experience aspects of digital financial services
G.1034	Quality of experience metrics for mobile telephony communication during rail travel
G.1035	Influencing factors on quality of experience for virtual reality services
G.1036	Quality of experience influencing factors for augmented reality services
G.1040	Network contribution to transaction time
G.1050	Network model for evaluating multimedia transmission performance over Internet Protocol
G.1051	Latency measurement and interactivity scoring under real application data traffic patterns
G.1052	Testbed framework for mobile application quality of service and quality of experience evaluation
G.1070	Opinion model for video-telephony applications
G.1071	Opinion model for network planning of video and audio streaming applications
G.1072	Opinion model predicting gaming quality of experience for cloud gaming services
G.1080	Quality of experience requirements for IPTV services
G.1081	Performance monitoring points for IPTV
G.1082	Measurement-based methods for improving the robustness of IPTV performance
G.1091	Quality of Experience requirements for telepresence services
G.1092	Taxonomy of telemeetings from a quality of experience perspective
G.7041	Generic framing procedure
G.Imp7041	Implementer's Guide for ITU-T Rec. G.7041
G.7042	Link capacity adjustment scheme (LCAS) for virtual concatenated signals
G.7043	Virtual concatenation of plesiochronous digital hierarchy (PDH) signals
G.7044	Hitless adjustment of ODUflex(GFP)
G.7701	Common control aspects
G.7702	Architecture for SDN control of transport networks
G.7703	Architecture for the automatically switched optical network ITU-T G.8080/Y.1304 was renumbered as ITU-T G.7703 (consented in April 2021 and approved in May 2021) to group it with the other architecture Recommendations that share common control aspects described in G.7701.
G.7710	Common equipment management function requirements
G.7711	Generic protocol-neutral information model for transport resources
G.7712	Architecture and specification of data communication network
G.7713	Distributed call and connection management (DCM)
G.7713.1	Distributed Call and Connection Management (DCM) based on PNNI
G.Imp7713.1	Implementers' Guide for Recommendation ITU-T G.7713.1/Y.1704.1 (03/2003)
G.Imp7713.2	Implementers' Guide for Recommendation ITU-T G.7713.2/Y.1704.2 (03/2003)
G.7713.2	Distributed Call and Connection Management: Signalling mechanism using GMPLS RSVP-TE
G.7713.3	Distributed Call and Connection Management: Signalling mechanism using GMPLS CR-LDP
G.Imp7713.3	Implementers' Guide for Recommendation ITU-T G.7713.3/Y.1704.3 (03/2003)
G.Imp7713	Implementers' Guide
G.7714	Generalized automatic discovery for transport entities
G.7714.1	Protocol for automatic discovery in transport networks
G.Imp7714.1	Implementers' Guide
G.Imp7715	Implementers' Guide for Recommendation ITU-T G.7715/Y.1706 (06/2002)
G.7715	Architecture and requirements for routing in the automatically switched optical networks
G.Imp7715.1	Implementers' Guide for Recommendation ITU-T G.7715.1/Y.1706.1 (02/2004)
G.7715.1	ASON routing architecture and requirements for link state protocols
G.Imp7715.2	Implementers' Guide for Recommendation ITU-T G.7715.2/Y.1706.2 (02/2007) - ASON routing architecture and requirements for remote route query
G.7715.2	ASON routing architecture and requirements for remote route query
G.7716	Architecture of management and control operations
G.Imp7716	Implementers' Guide for Recommendation ITU-T G.7716/Y.1707 (01/2010) - Architecture of control plane operations
G.7718	Framework for the management of management-control components and functions
G.7718.1	Protocol-neutral management information model for the control plane view
G.7719	Management information model for management-control components and functions
G.7721	Management requirement and information model for synchronization
G.7721.1	Data model of synchronization management
G.Imp8001	Implementer's guide (2021) for Recommendation ITU-T G.8001/Y.1354 (2016)
G.8001	Terms and definitions for Ethernet frames over transport Recommendation G.8001/Y.1354 (2016) was superseded by Recommendations ITU-T G.8012/Y.1308 (2022) and ITU-T G.8021/Y.1341 (2022)
G.8010	Architecture of Ethernet layer networks
G.Imp8010	Implementers' Guide for ITU-T Rec. G.8010/Y.1306 (02/2004) - Architecture of Ethernet layer networks
G.8011	Ethernet service characteristics
G.8011.1	Ethernet private line service The contents of Recommendations ITU-T G.8011.1/Y.1307.1 (2013), G.8011.2/Y.1307.2 (2013), G.8011.3/Y.1307.3 (2013), G.8011.4/Y.1307.4 (2013) and G.8011.5/Y.1307.5 (2013) have been integrated into Recommendation ITU-T G.8011/Y.1703 (2015)
G.8011.2	Ethernet virtual private line service The contents of Recommendations ITU-T G.8011.1/Y.1307.1 (2013), G.8011.2/Y.1307.2 (2013), G.8011.3/Y.1307.3 (2013), G.8011.4/Y.1307.4 (2013) and G.8011.5/Y.1307.5 (2013) have been integrated into Recommendation ITU-T G.8011/Y.1703 (2015)
G.8011.3	Ethernet virtual private LAN service The contents of Recommendations ITU-T G.8011.1/Y.1307.1 (2013), G.8011.2/Y.1307.2 (2013), G.8011.3/Y.1307.3 (2013), G.8011.4/Y.1307.4 (2013) and G.8011.5/Y.1307.5 (2013) have been integrated into Recommendation ITU-T G.8011/Y.1703 (2015)
G.8011.4	Ethernet private tree and Ethernet virtual private tree services The contents of Recommendations ITU-T G.8011.1/Y.1307.1 (2013), G.8011.2/Y.1307.2 (2013), G.8011.3/Y.1307.3 (2013), G.8011.4/Y.1307.4 (2013) and G.8011.5/Y.1307.5 (2013) have been integrated into Recommendation ITU-T G.8011/Y.1703 (2015)
G.8011.5	Ethernet private LAN service
G.Imp8011	Implementers' Guide for ITU-T Rec. G.8011/Y.1307 - Ethernet service characteristics
G.Imp8011.1	Implementers' Guide for ITU-T Rec. G.8011.1/Y.1307.1 (08/2004) - Ethernet private line service
G.Imp8011.2	Implementers' Guide for ITU-T Rec. G.8011.2/Y.1307.2 (09/2005) - Ethernet virtual private line service
G.Imp8011.3	Implementers' Guide for ITU-T Rec. G.8011.3/Y.1307.3 (02/2010) - Ethernet virtual private LAN service
G.Imp8011.4	Implementers' Guide for ITU-T Rec. G.8011.4/Y.1307.4 - Ethernet virtual private rooted multipoint service
G.Imp8012	Implementers' Guide for Recommendation ITU-T G.8012/Y.1308 (08/2004) - Ethernet UNI and Ethernet NNI
G.8012	Ethernet UNI and Ethernet NNI ITU-T G.8012/Y.1308 (02/2022) supersedes ITU-T G.8012.1/Y.1308.1 (12/2012), and together with ITU-T G.8021/Y.1341 (04/2022) also supersedes ITU-T G.8021.1/Y.1341.1 (10/2012)
G.8012.1	Interfaces for the Ethernet transport network ITU-T G.8012.1/Y.1308.1 was superseded on 13 February 2022 by ITU-T G.8012/Y.1308 (02/2022)
G.8013	Operation, administration and maintenance (OAM) functions and mechanisms for Ethernet-based networks
G.8020.3	Ethernet
G.8021	Characteristics of Ethernet transport network equipment functional blocks
G.8021.1	Types and characteristics of Ethernet transport network equipment ITU-T G.8012/Y.1308 (02/2022) together with ITU-T G.8021/Y.1341 (04/2022) superseded ITU-T G.8021.1/Y.1341.1 on 22 April 2022
G.8023	Characteristics of equipment functional blocks supporting Ethernet physical layer and Flex Ethernet interfaces
G.8031	Ethernet linear protection switching
G.8032	Ethernet ring protection switching
G.Imp8032	Implementers' Guide for ITU-T Rec. G.8032/Y.1344 (03/2010) - Ethernet ring protection switching
G.8040	GFP frame mapping into Plesiochronous Digital Hierarchy (PDH)
G.8051	Management aspects of the Ethernet transport (ET) capable network element
G.Imp8051	Implementers' Guide for Recommendation ITU-T G.8051/Y.1345 (11/2009) - Management aspects of the Ethernet -over -Transport (EoT) capable network element
G.8052	Protocol-neutral management information model for the Ethernet transport capable network element
G.8052.1	Operation, administration, maintenance (OAM) management information and data models for the Ethernet-transport network element
G.8052.2	Resilience information/data models for the Ethernet transport network element
G.8080	Architecture for the automatically switched optical network
G.Imp8080	Implementers' Guide
G.8081	Terms and definitions for automatically switched optical networks
G.8101	Terms and definitions for MPLS transport profile By decision of ITU-T SG15 at its plenary of 18.09.2020, Recommendation G.8101/Y.1355 is superseded by ITU-T G.8110.1 Amd.1 (2020) and G.8112 (2020).
G.Imp8101	Implementers' guide for Recommendation ITU-T G.8101/Y.1355 (2016-11)
G.8110	MPLS layer network architecture
G.8110.1	Architecture of the Multi-Protocol Label Switching transport profile layer network
G.8112	Interfaces for the MPLS transport profile layer network
G.8113.1	Operations, administration and maintenance mechanisms for MPLS-TP in packet transport networks
G.8113.2	Operations, administration and maintenance mechanisms for MPLS-TP networks using the tools defined for MPLS
G.8121	Characteristics of MPLS-TP equipment functional blocks
G.8121.1	Characteristics of MPLS-TP equipment functional blocks supporting ITU-T G.8113.1/Y.1372.1 OAM mechanisms
G.8121.2	Characteristics of MPLS-TP equipment functional blocks supporting ITU-T G.8113.2/Y.1372.2 OAM mechanisms
G.8131	Linear protection switching for MPLS transport profile
G.8132	MPLS-TP shared ring protection
G.8133	Dual-homing protection for multi-protocol label switching -transport profile pseudowires
G.8151	Management aspects of the MPLS-TP network element
G.8152	Protocol-neutral management information model for MPLS-TP network elements
G.8152.1	Operation, administration, maintenance (OAM) management information and data models for the MPLS-TP network element
G.8152.2	Resilience information/data models for the MPLS-TP network element
G.8201	Error performance parameters and objectives for multi-operator international paths within optical transport networks
G.8251	The control of jitter and wander within the optical transport network (OTN)
G.8260	Definitions and terminology for synchronization in packet networks
G.8261	Timing and synchronization aspects in packet networks
G.8261.1	Packet delay variation network limits applicable to packet-based methods (Frequency synchronization)
G.8262	Timing characteristics of synchronous equipment clocks
G.8262.1	Timing characteristics of enhanced synchronous equipment slave clock
G.8263	Timing characteristics of packet-based equipment clocks
G.8264	Distribution of timing information through packet networks
G.8265	Architecture and requirements for packet-based frequency delivery
G.8265.1	Precision time protocol telecom profile for frequency synchronization
G.8266	Timing characteristics of telecom grandmaster clocks for frequency synchronization
G.8271	Time and phase synchronization aspects of telecommunication networks
G.8271.1	Network limits for time synchronization in packet networks with full timing support from the network
G.8271.2	Network limits for time synchronization in packet networks with partial timing support from the network
G.8272	Timing characteristics of primary reference time clocks
G.8272.1	Timing characteristics of enhanced primary reference time clocks
G.8272.2	Timing characteristics of coherent network primary reference time clocks
G.8273	Framework of phase and time clocks
G.8273.2	Timing characteristics of telecom boundary clocks and telecom time synchronous clocks for use with full timing support from the network
G.8273.3	Timing characteristics of telecom transparent clocks for use with full timing support from the network
G.8273.4	Timing characteristics of telecom boundary clocks and telecom time synchronous clocks for use with partial timing support from the network
G.8275	Architecture and requirements for packet-based time and phase distribution
G.8275.1	Precision time protocol telecom profile for phase/time synchronization with full timing support from the network
G.8275.2	Precision time protocol telecom profile for phase/time synchronization with partial timing support from the network
G.8300	Characteristics of transport networks to support IMT-2020/5G
G.8310	Architecture of the metro transport network
G.8312	Interfaces for metro transport networks
G.8312.20	Overview of fine grain MTN
G.8321	Characteristics of metro transport network equipment functional blocks
G.8331	Metro transport network linear protection
G.8350	Management and Control of metro transport networks - Amendment 1
G.8371	Synchronization aspects of metro transport network
G.8601	Architecture of service management in multi-bearer, multi-carrier environment
G.9700	Fast access to subscriber terminals (G.fast) - Power spectral density specification
G.9701	Fast access to subscriber terminals (G.fast) - Physical layer specification
G.9702	Transceiver and system specifications for backhaul applications based on G.fast (G.fastback)
G.9710	Multi-gigabit fast access to subscriber terminals (MGfast) - Power spectral density specification
G.9711	Multi-gigabit fast access to subscriber terminals (MGfast) - Physical layer specification
G.9730.1	Dedicated scientific sensing submarine cable system
G.9730.2	Scientific monitoring and reliable telecommunication submarine cable systems
G.Imp9801	Implementers' Guide for Recommendation ITU-T G.9801 (Ethernet passive optical networks using OMCI)
G.9801	Ethernet passive optical networks using OMCI
G.9802	Multiple-wavelength passive optical networks (MW-PONs)
G.9802.1	Wavelength division multiplexed passive optical networks (WDM PON): General requirements
G.9802.2	Wavelength division multiplexed passive optical networks (WDM PON): physical media dependent (PMD) layer and transmission convergence (TC) layer specifications
G.9803	Radio over fibre systems
G.9804.1	Higher speed passive optical networks - Requirements
G.9804.2	Higher speed passive optical networks - Common transmission convergence layer specification
G.9804.3	50-Gigabit-capable passive optical networks (50G-PON): Physical media dependent (PMD) layer specification
G.9805	Coexistence of passive optical network systems
G.9806	Higher-speed bidirectional, single fibre, point-to-point optical access system (HS-PtP)
G.9807.1	10-Gigabit-capable symmetric passive optical network (XGS-PON)
G.9807.2	10 Gigabit-capable passive optical networks (XG(S)-PON): Reach extension
G.9901	Narrowband orthogonal frequency division multiplexing power line communication transceivers - Power spectral density specification
G.9902	Narrowband orthogonal frequency division multiplexing power line communication transceivers for ITU-T G.hnem networks
G.9903	Narrowband orthogonal frequency division multiplexing power line communication transceivers for G3-PLC networks
G.9904	Narrowband orthogonal frequency division multiplexing power line communication transceivers for PRIME networks
G.9905	Centralized metric-based source routing
G.9930	Point-to-point fibre in the premises
G.9940	High speed fibre-based in-premises transceivers - system architecture
G.9941	High speed fibre-based in-premises transceivers - physical layer specification
G.9942	High speed fibre-based in-premises transceivers - Data link layer
G.9943	High speed fibre-based in-premises transceivers - network management
G.9949	WLAN management control interface (WMCI) for in-premises network
G.9951	Phoneline networking transceivers - Foundation This text was first approved and published as ITU-T Rec. G.989.1 and then renumbered as G.9951 on 2005-05-27 without further modification
G.9952	Phoneline networking transceivers - Payload format and link layer requirements This text was first approved and published as ITU-T Rec. G.989.2 and then renumbered as G.9952 on 2005-05-27 without further modification
G.9953	Phoneline networking transceivers - Isolation function This text was first approved and published as ITU-T Rec. G.989.3 and then renumbered as G.9953 on 2005-05-27 without further modification
G.9954	Home networking transceivers - Enhanced physical, media access, and link layer specifications
G.9955	[Withdrawn] Narrowband orthogonal frequency division multiplexing power line communication transceivers - Physical layer specification The contents of Recommendations ITU-T G.9955 (2011) and ITU-T G.9956 (2011) have been reorganized into Recommendations ITU-T G.9901, ITU-T G.9902, ITU-T G.9903 and ITU-T G.9904, which are technically equivalent.
G.9956	[Withdrawn] Narrowband orthogonal frequency division multiplexing power line communication transceivers - Data link layer specification The contents of Recommendations ITU-T G.9955 (2011) and ITU-T G.9956 (2011) have been reorganized into Recommendations ITU-T G.9901, ITU-T G.9902, ITU-T G.9903 and ITU-T G.9904, which are technically equivalent.
G.9958	Generic architecture of home networks for energy management
G.9959	Short range narrow-band digital radiocommunication transceivers - PHY, MAC, SAR and LLC layer specifications
G.9960	Unified high-speed wireline-based home networking transceivers - System architecture and physical layer specification
G.9961	Unified high-speed wireline-based home networking transceivers - Data link layer specification
G.9962	Unified high-speed wire-line based home networking transceivers - Management specification
G.9963	Unified high-speed wireline-based home networking transceivers - Multiple input/multiple output specification
G.9964	Unified high-speed wireline-based home networking transceivers - Power spectral density specification
G.9970	Generic home network transport architecture
G.9971	Requirements of transport functions in IP home networks
G.9972	Coexistence mechanism for wireline home networking transceivers
G.9973	Protocol for identifying home network topology
G.9975	Technical requirements of extended reality service over in-premises networks
G.9976	Supporting ultra-high-definition video service over G.hn
G.9977	Mitigation of interference between DSL and PLC
G.9978	Secure admission in a G.hn network
G.9979	Implementation of the generic mechanism in the IEEE 1905.1a-2014 standard to include applicable ITU-T Recommendations
G.9980	Remote management of customer premises equipment over broadband networks - Customer premises equipment WAN management protocol
G.9991	High-speed indoor visible light communication transceiver - System architecture, physical layer and data link layer specification
G.9992	Indoor optical camera communication transceivers - System architecture, physical layer and data link layer specification
G.100SerSup31	Principles of determining an impedance strategy for the local network
G.100SerSup32	Transmission aspects of digital mobile radio systems
G.Sup1	Calculation of the stability of international connections established in accordance with the transmission and switching plan
G.Sup2	[Withdrawn] Talker echo on international connections
G.Sup3	[Withdrawn] Evaluation of echo control devices
G.Sup4	Certain methods of avoiding the transmission of excessive noise between interconnected systems Green Book Volume III.2, page 572
G.Sup5	Measurement of the load of telephone circuits under field conditions Red Book Fascicle III.2, page 295
G.Sup6	[Withdrawn] Example showing how the total value of line noise specified for the hypothetical reference circuit on open-wire lines might be broken down into its various components Green Book Volume III.2, page 589
G.Sup7	Loss-frequency response of channel-translating equipment used in some countries for international circuits Green Book Volume III.2, page 590
G.Sup8	Method proposed by the Belgian telephone administration for interconnection between coaxial and symmetric pair systems Green Book Volume III.2, page 591
G.Sup9	[Withdrawn] Roll effect in coaxial pair systems Green Book Volume III.2, page 592
G.Sup10	[Withdrawn] Application of Recommendation B.4 concerning the use of decibel
G.Sup11	[Withdrawn] Data on cable ships and submersible equipments of various countries This Supplement was withdrawn because its was no longer relevant
G.Sup13	[Withdrawn] Noise at the terminals of the battery supply Orange Book Fascicle III.3, page 664
G.Sup14	[Withdrawn] Methods for measuring regularity return loss
G.Sup15	[Withdrawn] Almost-differential quasi-ternary code (ADQ code) This Supplement was withdrawn because its was technically obsolete
G.Sup17	Group-delay distortion performance of terminal equipment Red Book Fascicle III.2, page 311
G.Sup18	[Withdrawn] Information on submarine cables used in deep water Red Book Fascicle III.2, page 313
G.Sup19	Digital crosstalk measurement (method used by the Administrations of France, the Netherlands and Spain) Red Book Fascicle III.2, page 326
G.Sup20	[Withdrawn] Possible combinations of basic transmission impairments in hypothetical reference connections
G.Sup21	[Withdrawn] The use of quantizing distortion units in the planning of international connections
G.Sup22	Mathematical models of multiplex signals Red Book Fascicle III.2, page 326
G.Sup23	[Withdrawn] Explanatory notes for the information of designers of a maritime mobile satellite system
G.Sup24	[Withdrawn] Consideration concerning quantizing distortion units of some digital devices that process encoded signals
G.Sup26	Estimating the signal load margin of FDM wideband amplifier equipment and transmission systems Red Book Fascicle III.2, page 344
G.Sup27	Interference from external sources This Supplement is also published as G.500 series supplement in Red Book fascicle III.2
G.Sup28	Application of transmultiplexers, FDM codecs, data-in-voice (DIV) systems and data-over-voice (DOV) systems during the transition from an analogue to a digital network Red Book Fascicle III.3, page 397
G.100SerSup29	Planning of mixed analogue-digital circuits (chains, connections)
G.Sup29	Objective for the mixed analogue/digital chain of 4-wire circuits
G.Sup30	[Withdrawn] Transmission plan aspects of land mobile telephony networks
G.Sup31	[Withdrawn] Status of work of presently considered digital circuit multiplication equipment (DCME) documents
G.Sup32	Transfer of alarm information on 60-channel transmultiplexing equipment
G.Sup33	[Withdrawn] Examples of fibre design guidelines (diagrams used in Japan and in the United Kingdom) This Supplement was withdrawn because its was technically obsolete
G.Sup34	Temperature in underground containers for the installation of repeaters
G.Sup35	Guidelines concerning the measurement of wander
G.Sup36	Jitter and wander accumulation in digital networks
G.Sup37	ITU-T Recommendation G.763 digital circuit multiplication equipment (DCME) tutorial and dimensioning
G.Sup38	Variable bit rate calculations for the ITU-T Recommendation G.767 Digital Circuit Multiplication Equipment (DCME)
G.Sup39	Optical system design and engineering considerations
G.Sup40	Optical fibre and cable Recommendations and standards guideline
G.Sup41	Design guidelines for optical fibre submarine cable systems
G.Sup42	Guide on the use of the ITU-T Recommendations related to optical fibres and systems technology
G.Sup43	Transport of IEEE 10GBASE-R in optical transport networks (OTN)
G.Sup44	Test plan to verify B-PON interoperability
G.Sup45	Power conservation in optical access systems
G.Sup46	G-PON interoperability test plan between optical line terminations and optical network units
G.Sup47	General aspects of optical fibres and cables
G.Sup48	10-Gigabit-capable passive optical networks: Interface between media access control with serializer/deserializer and physical medium dependent sublayers
G.Sup49	Rogue optical network unit (ONU) considerations
G.Sup50	Overview of digital subscriber line Recommendations
G.Sup51	Passive optical network protection considerations
G.Sup52	Ethernet ring protection switching
G.Sup53	Guidance for Ethernet OAM performance monitoring
G.Sup54	Ethernet linear protection switching
G.Sup55	Radio-over-fibre (RoF) technologies and their applications
G.Sup56	OTN transport of CPRI signals
G.Sup57	Smart home profiles for 6LoWPAN devices
G.Sup58	Optical transport network module framer interfaces
G.Sup59	Guidance on optical fibre and cable reliability
G.Sup60	Ethernet linear protection switching with dual node interconnection
G.Sup61	ITU-T G.1020 - Internet protocol aware quality of service management
G.Sup62	Gfast certification
G.Sup63	ITU-T G.989.3 TC layer operating in ITU T G.987.3 or ITU-T G.9807.1 TC layer mode
G.Sup64	PON transmission technologies above 10 Gb/s per wavelength
G.Sup65	Simulations of transport of time over packet networks
G.Sup66	5G wireless fronthaul requirements in a passive optical network context
G.Sup67	Application of optical transport network Recommendations to 5G transport
G.Sup68	Synchronization operations, administration and maintenance requirements
G.Sup69	Migration of a pre-standard network to a metro transport network
G.Sup70	Supplement on sub 1 Gbit/s services transport over optical transport network
G.Sup71	Optical line termination capabilities for supporting cooperative dynamic bandwidth assignment
G.Sup72	Modelling consideration for optical media networks
G.Sup73	Influencing factors on quality of experience for multiview video (MVV) services
G.Sup74	Network slicing in a passive optical network context
G.Sup75	5G small cell backhaul/midhaul over TDM-PON
G.Sup76	Optical transport network security
G.Sup77	Supplement 77 to ITU-T G-series of Recommendations - Influencing factors on quality of experience (QoE) for video customized alerting tone (CAT) and video customized ringing signal (CRS) services
G.Sup78	Use case and requirements of fibre-to-the-room for small business applications
G.Sup79	Latency control and deterministic capability over a PON system
G.Sup80	Use case and requirements of fibre-based in-premises networking for home application (FIP4H)
G.Sup81	Practical aspects of PON security
G.Sup82	Enhanced optical line termination with information technology functions
G.Sup83	Supplement on the use of options in the precision time protocol profile with full timing support from the network
G.Sup84	Operational aspects of optical access
G.Sup85	FgODUflex over point-to-multipoint networks
G.Sup86	Fibre to the power grid (FTTGrid) use cases and network requirements
G.Sup87	Standardization framework for optical fibres for space division multiplexing