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F.1

Operational provisions for the international public telegram service  

F.2

Operational provisions for the collection of telegram charges  
Published as F.42 (11/88), then renumbered as F.2

F.4

Plain and secret language  

F.10

Character error rate objective for telegraph communication using 5-unit start-stop equipment  

F.11

Continued availability of traditional services  

F.13

[Withdrawn] Operational provisions for participation in the transferred account telegraph and telematic service  
Published as F.41 (11/88), then renumbered as F.13. It was deleted after the withdrawal of the transferred account telegraph and telematic service

F.14

General provisions for one-stop-shopping arrangements  

F.15

Evaluating the success of new services  

F.16

Global virtual network service  

F.17

Operational aspects of service telecommunications  

F.18

Guidelines on harmonization of international public bureau services  

F.19

Collection and dissemination of official service information  
Formerly C.2, renumbered as F.19 on 25/01/2002 without further modification

F.20

The international gentex service  

F.21

Composition of answer-back codes for the international gentex service  

F.23

Grade of service for long-distance international gentex circuits  

F.24

Average grade of service from country to country in the gentex service  

F.30

Use of various sequences of combinations for special purposes  

F.31

Telegram retransmission system  

F.32

Telegram destination indicators  
Formerly Rec. F.96.

F.35

Provisions applying to the operation of an international public automatic message switching service for equipments utilizing the International Telegraph Alphabet No. 2  

F.40

International public telemessage service  
Formerly Rec. F.50.

F.41

Interworking between the telemessage service and the international public telegram service  
Formerly Rec. F.51.

F.51

Interworking between the telemessage service and the international public telegram service  

F.59

General characteristics of the international telex service  

F.60

Operational provisions for the international telex service  

F.61

Operational provisions relating to the chargeable duration of a telex call  

F.62

[Withdrawn] Duplex operation in the telex service  

F.63

Additional facilities in the international telex service  

F.64

Determination of the number of international telex circuits required to carry a given volume of traffic  

F.65

Time-to-answer by operators at international telex positions  

F.68

Establishment of the automatic intercontinental telex network  

F.69

The international telex service - Service and operational provisions of telex destination codes and telex network identification codes  

F.70

Evaluating the quality of the international telex service  

F.71

Interconnection of private teleprinter networks with the telex network  

F.72

The international telex service - General principles and operational aspects of a store and forward facility  

F.73

Operational principles for communication between terminals of the international telex service and data terminal equipment on packet-switched public data networks  
Corr. 12/90

F.74

Intermediate storage devices accessed from the international telex service using single stage selection - Answerback format  

F.80

Basic requirements for interworking relations between the international telex service and other services  

F.82

Operational provisions to permit interworking between the international telex service and the intex service  

F.83

Operational principles for communication between terminals of the international telex service and data terminal equipment on packet-switched public data networks  
Published as F.73, then renumbered as F.83. A Corrigendum was indicated in 12/1990.

F.86

[Withdrawn] Interworking between the international telex service and the videotex service  
Withdrawn on 2004-09-02 because it was obsolete

F.87

Operational principles for the transfer of messages from terminals on the telex network to Group 3 facsimile terminals connected to the public switched telephone network  
Drafted as F.76, then renumbered and published as F.87.

F.89

Status enquiry function in the international telex service  

F.91

[Withdrawn] General statistics for the telegraph services  
Deleted as a consequence of the abolishion of a number of service documents

F.92

[Withdrawn] Service codes  
The content of this Recommendation is now covered by ITU-T F.32

F.93

[Withdrawn] Routing table for offices connected to the gentex service  
Deleted as a consequence of the abolishion of a number of service documents

F.95

[Withdrawn] Table of international telex relations and traffic  
Deleted as a consequence of the abolishion of a number of service documents

F.100

Scheduled radiocommunication service  

F.104

International leased circuit services - Customer circuit designations  

F.105

Operational provisions for phototelegrams  
Published as F.80 (11/88), then renumbered as F.105.

F.106

Operational provisions for private phototelegraph calls  
Published as F.80 bis (11/88), then renumbered as F.106.

F.107

Rules for phototelegraph calls established over circuits normally used for telephone traffic  
Published as F.82 (11/88), then renumbered as F.107. This Recommendation is also included but not published in E series under alias number E.323.

F.108

Operating rules for international phototelegraph calls to multiple destinations  
Published as F.85 (11/88), then renumbered as F.108.

F.110

Operational provisions for the maritime mobile service  
The date of entry into effect of this Recommendation edition is 1 January 1997.

F.111

Principles of service for mobile systems  

F.112

Quality objectives for 50-baud start-stop telegraph transmission in the maritime mobile-satellite service  

F.113

Service provisions for aeronautical passenger communications supported by mobile-satellite systems  

F.115

Service objectives and principles for future public land mobile telecommunication systems  

F.116

Service features and operational provisions in IMT-2000  

F.120

Ship station identification for VHF/UHF and maritime mobile-satellite services  
This Recommendation is also published under alias number E.210

F.122

Operational procedures for the maritime satellite data transmission service  

F.125

[Withdrawn] Numbering plan for access to the mobile-satellite services of INMARSAT from the international telex service  

F.126

[Withdrawn] Selection procedures for the INMARSAT mobile-satellite telex service  

F.127

Operational procedures for interworking between the international telex service and the service offered by the INMARSAT-C system  

F.130

Maritime answer-back codes  

F.131

Radiotelex service codes  

F.140

Point-to-multipoint telecommunication service via satellite  

F.141

International two-way multipoint telecommunication service via satellite  

F.150

Service and operational provisions for the Intex service  

F.160

[Withdrawn] General operational provisions for the international public facsimile services  
Deleted as a result of liberalisation in the telecommunications environment resulting in the removal of international regulated services

F.162

Service and operational requirements of store-and-forward facsimile service  

F.163

Operational requirements of the interconnection of facsimile store-and-forward units  

F.166

[Withdrawn] Service and operational requirements for a fax database service  
Deleted as there are no plans for the introduction of a service of this nature

F.170

Operational provisions for the international public facsimile service between public bureaux (Bureaufax)  

F.171

Operational provisions relating to the use of store-and-forward switching nodes within the bureaufax service  

F.180

[Withdrawn] General operational provisions for the international public facsimile service between subscribers' terminals (Telefax)  
Deleted as a result of liberalisation in the telecommunications environment resulting in the removal of international regulated services

F.182

[Withdrawn] Operational provisions for the international public facsimile service between subscribers with Group 3 facsimile terminals (Telefax 3)  
Deleted as a result of liberalisation in the telecommunications environment resulting in the removal of international regulated services

F.182bis

Guidelines for the support of the communication of documents using Group 3 facsimile between user terminals via public networks  

F.184

[Withdrawn] Operational provisions for the international public facsimile service between subscriber stations with group 4 facsimile terminals (Telefax 4)  
Deleted as a result of liberalisation in the telecommunications environment resulting in the removal of international regulated services

F.185

Internet facsimile: Guidelines for the support of the communication of facsimile documents  

F.190

Operational provisions for the international facsimile service between public bureaux and subscriber stations and vice versa (bureaufax-telefax and vice versa)  

F.200

[Withdrawn] Teletex service  
Deleted as a consequence of the suppression of Teletex service

F.201

[Withdrawn] Interworking between teletex service and telex service - General principles  
Deleted as a consequence of the suppression of Teletex service

F.202

[Withdrawn] Interworking between the telex service and the teletex service - General procedures and operational requirements for the international interconnection of telex/teletex conversion facilities  
Deleted as a consequence of the suppression of Teletex service

F.203

[Withdrawn] Network based storage for the teletex service  
Deleted as a consequence of the suppression of Teletex service

F.220

[Withdrawn] Service requirements unique to the processable mode number eleven (PM11) used within the teletex service  
Deleted as a consequence of the suppression of Teletex service

F.230

[Withdrawn] Service requirements unique to the mixed mode (MM) used within the teletex service  
Deleted as a consequence of the suppression of Teletex service

F.300

[Withdrawn] Videotex service  
Withdrawn on 2004-09-02 because it was obsolete

F.301

[Withdrawn] Fast speed PSTN videotex  
Withdrawn on 2004-09-02 because it was obsolete

F.350

Application of Series T Recommendations  

F.351

General principles on the presentation of terminal identification to users of the telematic services  

F.353

Provision of telematic and data transmission services on integrated services digital network (ISDN)  

F.400

Message handling system and service overview  

F.401

Message handling services: Naming and addressing for public message handling services  

F.410

Message handling services: The public message transfer service  

F.415

Message handling services: Intercommunication with public physical delivery services  
Erratum in F.410 (08/92)

F.420

Message handling services: The public interpersonal messaging service  

F.421

Message handling services: Intercommunication between the IPM service and the telex service  
This Recommendation is also included but not published in F series under alias number F.85. Covering note, December 1999: Intercommunication between the IPM service and the telex service.

F.422

[Withdrawn] Message handling services: Intercommunication between the IPM service and the teletex service  
Deleted as a consequence of the suppression of Teletex service

F.423

Message handling services: Intercommunication between the interpersonal messaging service and the telefax service  

F.435

Message handling services: Electronic Data Interchange messaging service  

F.440

Message handling services: The voice messaging service  

F.471

Operational requirements for the interconnection of voice-mail store-and-forward units  

F.472

Service and operational requirements of the voice-mail store-and-forward service  

F.500

International public directory services  

F.510

Automated directory assistance - White pages service definition  

F.511

Directory service - Support of tag-based identification services  

F.515

Unified Directory specification  

F.551

[Withdrawn] Service Recommendation for the telematic file transfer within Telefax 3, Telefax 4, Teletex services and message handling services  

F.581

Guidelines for programming communication interfaces (PCIs) definition: Service Recommendation  

F.600

Service and operational principles for public data transmission service  

F.601

[Withdrawn] Service and operational principles for packet-switched public data networks  

F.700

Framework Recommendation for multimedia services  

F.701

Guideline Recommendation for identifying multimedia service requirements  

F.702

Multimedia conference services  

F.703

Multimedia conversational services  

F.710

[Withdrawn] General principles for audiographic conference service  
The content of this Recommendation is superseded by ITU-T F.702 on multimedia

F.711

[Withdrawn] Audiographic conference teleservice for ISDN  
The content of this Recommendation is superseded by ITU-T F.731 on multimedia

F.720

Videotelephony services - General  

F.721

Videotelephony teleservice for ISDN  

F.723

Videophone service in the Public Switched Telephone Network (PSTN)  

F.724

Service description and requirements for videotelephony services over IP networks  

F.730

[Withdrawn] Videoconference service - General  
The content of this Recommendation is superseded by ITU-T F.702 on multimedia

F.731

Multimedia Conference Services in the ISDN  

F.732

Multimedia conference services in the B-ISDN  

F.733

Service description and requirements for multimedia conference services over IP networks  

F.734

Definitions, requirements and use cases for telepresence systems  

F.735.1

Requirements for software-defined cameras  

F.735.2

Architecture and protocols for software-defined cameras  

F.740

Audiovisual interactive services  

F.740.1

Requirements for an information service of objects in museums  

F.740.2

Requirements and reference framework for digital representation of cultural relics and artworks using augmented reality  

F.740.3

Metadata for digital representation of cultural relics/artworks using augmented reality  

F.740.4

Metadata for image aesthetics assessment with aesthetic attributes in mobile terminal computational photography systems  

F.740.5

Data collection and annotation requirements for automatic white balance (AWB) enhancement in mobile terminals for digital culture  

F.740.6

Reference framework and requirements for Internet protocol multimedia subsystem early media and extension service system  

F.740.7

Reference architecture and requirements for a mobile terminal computational photography system  

F.740.8

Requirements and architecture for live virtual tour systems using panoramic video and augmented reality  

F.741

Service description and requirements for audiovisual on-demand services  

F.742

Service description and requirements for distance learning services  

F.742.1

Requirements for smart class systems based on artificial intelligence  

F.742.2

Functional architecture for distance learning services  

F.743

Requirements and service description for video surveillance  

F.743.1

Requirements for intelligent visual surveillance  

F.743.2

Requirements for cloud storage in visual surveillance  

F.743.3

Requirements for visual surveillance system interworking  

F.743.4

Functional requirements for virtual content delivery networks  

F.743.5

Framework and interfaces for multimedia content delivery network  

F.743.6

Service requirements for next generation content delivery networks  

F.743.7

Requirements for big data-enhanced visual surveillance services  

F.743.8

Requirements for a cloud computing platform supporting a visual surveillance system  

F.743.9

Use-cases and requirements for multimedia content delivery network  

F.743.10

Requirements for mobile edge computing enabled content delivery networks  

F.743.11

Requirements for video surveillance with mobile premises units  

F.743.12

Requirements for edge computing in video surveillance  

F.743.13

Requirements for the cooperation of multiple edge gateways  

F.743.14

Requirements for video distribution systems  

F.743.15

Requirements for multi-operator core network enabled multimedia services  

F.743.16

Requirements for communication resource management in intelligent visual surveillance systems  

F.743.17

Requirements for cloud gaming systems  

F.743.18

Requirements for IMT-2020 ultra-high definition surveillance cameras  

F.743.19

Requirements for intelligent surveillance cameras in intelligent video surveillance systems  

F.743.20

Assessment framework for big data infrastructure  

F.743.21

Framework for data asset management  

F.743.22

Requirements and architecture of an algorithm-training system for intelligent video surveillance  

F.743.23

Security requirements for video surveillance systems  

F.743.24

Scenarios and requirements for distributed ledger technology (DLT) in video surveillance system interworking  

F.743.25

Procedures and requirements for multimedia data asset management  

F.743.26

Technical requirements of cloud gaming platform based on IMT-2020 mobile edge computing  

F.744

Service description and requirements for ubiquitous sensor network middleware  

F.744.1

Functional requirements for virtual content delivery networks  

F.744.2

Framework and interfaces for multimedia content delivery network  

F.744.3

Service requirements for next generation content delivery networks  

F.744.4

Use-cases and requirements for multimedia content delivery network  

F.744.5

Requirements for content delivery networks based on peer-to-peer technology  

F.745

Functional requirements for network-based speech-to-speech translation services  

F.746

Requirements of multimedia optimization control components  

F.746.1

Requirements for low-latency interactive multimedia streaming  

F.746.2

Service description for user data exchange between functional components in network entities and terminals  

F.746.3

Intelligent question answering service framework  

F.746.4

Requirements for deployment of information-centric network  

F.746.5

Framework for a language learning system based on speech and natural language processing (NLP) technology  

F.746.6

Requirements for a name resolution service in information-centric networks  

F.746.7

Metadata for an intelligent question answering service  

F.746.8

Requirements for unified status monitoring of networks and services  

F.746.9

Requirements and architecture for indoor conversational robot systems  

F.746.10

Architecture for a spontaneous dialogue processing system for language learning  

F.746.11

Interfaces for intelligent question answering system  

F.746.12

Requirements for a real-time interactive multimedia service under poor network conditions  

F.746.13

Requirements for smart speaker-based intelligent multimedia communication systems  

F.746.14

Requirements and reference framework for cloud virtual reality systems  

F.746.15

Requirements for smart broadband network gateway in multimedia content transmission  

F.746.16

Technical requirements and evaluation methods of intelligence levels of intelligent customer service systems  

F.746.17

Requirements for media processing services  

F.746.18

Requirements for interactive low-latency multimedia transmission system over the Internet  

F.747.1

Capabilities of ubiquitous sensor networks for supporting the requirements of smart metering services  

F.747.2

Deployment guidelines for ubiquitous sensor network applications and services for mitigating climate change  

F.747.3

Requirements and functional model for a ubiquitous network robot platform that supports ubiquitous sensor network applications and services  

F.747.4

Requirements and functional architecture for the open ubiquitous sensor network service platform  

F.747.5

Requirements and functional architecture of an automatic location identification system for ubiquitous sensor network applications and services  

F.747.6

Requirements for water quality assessment services using ubiquitous sensor networks (USNs)  

F.747.7

Requirements for network-based location information conversion for location-based applications and services  

F.747.8

Requirements and reference architecture for audience-selectable media service framework in the IoT environment  

F.747.9

Requirements and architecture for energy management services  

F.747.10

Requirements of distributed ledger systems for secure human factor services  

F.747.11

Requirements for intelligent surface-defect detection service in industrial production lines  

F.747.12

Requirements for artificial intelligence based machine vision system in smart logistics warehouse  

F.747.13

Requirements and reference framework of cloud-edge collaboration in industrial machine vision systems  

F.747.14

Requirements and capability framework of the multimodal fusion system for vision  

F.747.15

Requirements of event-based vision systems  

F.748.0

Common requirements for Internet of things (IoT) applications  

F.748.1

Requirements and common characteristics of the IoT identifier for the IoT service  

F.748.2

Machine socialization: Overview and reference model  

F.748.3

Machine socialization: Relation management models and descriptions  

F.748.5

Requirements and reference architecture of the machine-to-machine service layer  

F.748.11

Metrics and evaluation methods for a deep neural network processor benchmark  

F.748.12

Deep learning software framework evaluation methodology  

F.748.13

Technical framework for the shared machine learning system  

F.748.14

Requirements and evaluation methods of non-interactive 2D real-person digital human application systems  

F.748.15

Framework and metrics for digital human application systems  

F.748.16

Requirements for applications and services in smart manufacturing based on machine vision  

F.748.17

Technical specification for artificial intelligence cloud platform - Artificial intelligence model development  

F.748.18

Metric and evaluation methods for AI-enabled multimedia application computing power benchmark  

F.748.19

Framework for audio structuralizing based on deep neural networks  

F.748.20

Technical framework for deep neural network model partition and collaborative execution  

F.748.21

Requirements and framework for feature-based distributed intelligent systems  

F.748.22

Functional architecture for feature-based distributed intelligent systems  

F.748.23

Requirements and framework for intelligent crowdsensing multimedia interaction based on deep learning  

F.748.24

Trusted contribution evaluation framework on federated machine learning services  

F.748.25

Requirements for speech interaction of intelligent customer services  

F.748.26

Technical specification for artificial intelligence cloud platforms: Performance evaluation  

F.748.27

Framework and requirements for the construction of 3D intelligent driven digital human application systems  

F.748.28

Requirements and functional architecture of digital twin platforms for supporting multimedia services  

F.748.29

Framework and requirements of computer audition-based machinery fault diagnosis systems  

F.748.30

Requirements of communication services for digital humans  

F.748.31

Technical requirements and evaluation methods of 3D digital human system based on smart mobile devices  

F.748.32

Requirements and architecture of AI-based detection technologies for multimedia messages  

F.748.33

Metrics and evaluation methods for image-based re-identification algorithm  

F.748.34

Requirements for the construction of multimedia knowledge graph database structure based on artificial intelligence  

F.748.35

Requirement and framework of trustworthy federated machine learning based service  

F.748.36

Requirements and framework of multi-algorithm scheduling systems  

F.748.37

Requirements and functional framework of joint semantic query system of unstructured data across clusters  

F.748.38

Technical specification for artificial intelligence cloud platform: General architecture  

F.748.40

Technical specification for artificial intelligence cloud platform: Data annotation  

F.749.1

Functional requirements for vehicle gateways  

F.749.2

Service requirements for vehicle gateway platforms  

F.749.3

Use cases and requirements for vehicular multimedia networks  

F.749.4

Use cases and requirements for multimedia communication enabled vehicle systems using artificial intelligence  

F.749.5

Vehicle domain service - General information and use case definitions  

F.749.6

Requirements of vehicle information for automated driving in vehicle gateway platforms  

F.749.8

In-vehicle multimedia applets: Framework and functional requirements  

F.749.10

Requirements for communication services of civilian unmanned aerial vehicles  

F.749.11

Requirements for civilian unmanned aerial vehicles enabled mobile edge computing  

F.749.12

Framework for communication application of civilian unmanned aerial vehicles  

F.749.13

Framework and requirements for civilian unmanned aerial vehicle flight control using artificial intelligence  

F.749.14

Requirements of coordination for civilian unmanned aerial vehicles  

F.749.15

Requirements for inspection and examination services using civilian unmanned aerial vehicles  

F.749.16

Requirements for logistics express delivery based on civilian unmanned aerial vehicles  

F.749.18

Framework and requirements for emergency services using civilian unmanned aerial vehicles  

F.750

Metadata framework  

F.751.0

Requirements for distributed ledger systems  

F.751.1

Assessment criteria for distributed ledger technology platforms  

F.751.2

Reference framework for distributed ledger technologies  

F.751.3

Requirements for change management in distributed ledger technology (DLT)-based decentralized applications  

F.751.4

General framework for distributed ledger technology (DLT)-based invoices  

F.751.5

Requirements for distributed ledger technology-based power grid data management  

F.751.6

Performance assessment methods for distributed ledger technology platforms  

F.751.7

Functional assessment methods for distributed ledger technology platforms  

F.751.8

Technical framework for distributed ledger technology (DLT) to cope with regulation  

F.751.9

Trusted execution environment based confidential computing on distributed ledger technology systems  

F.751.10

Framework and requirements for distributed ledger technology (DLT)-based digital collection services  

F.751.11

Performance test suite for distributed ledger technology systems  

F.751.12

Formal verification framework for smart contract on distributed ledger technology  

F.751.13

Framework and requirements for distributed ledger technology-based distributed power trading systems  

F.751.14

Reference architecture for information tracing of renewable energy consumption based on distributed ledger technology  

F.751.15

Assessment methods for distributed ledger technology (DLT) management service platforms  

F.751.16

Reference framework for distributed ledger technology (DLT) management service platforms  

F.751.17

Smart contract lifecycle management requirements for distributed ledger technology systems  

F.751.18

Framework for distributed ledger technology (DLT)-based energy metering data sharing  

F.751.19

Framework and requirements for distributed ledger technology based on sharding technique  

F.751.20

Reference architecture for distributed ledger technology (DLT)-based multimedia data delivery management systems  

F.751.21

Technical requirements on inter-chain interoperability for permissioned distributed ledger technologies  

F.751.22

Financial distributed ledger technology application guideline  

F.760.1

Requirements and reference framework for emergency rescue systems  

F.760.2

Guidelines for user interface of first responders in emergency response support systems  

F.761

Service-oriented requirements for telewriting applications  
Published as F.730 (11/88), then renumbered as F.761.

F.771

Service description and requirements for multimedia information access triggered by tag-based identification  

F.780.1

Framework for telemedicine systems using ultra-high definition imaging  

F.780.2

Accessibility of telehealth services  

F.780.3

Use cases and requirements for ultra-high-definition teleconsulting system  

F.780.4

Reference framework, requirements and scenarios for telemedicine systems  

F.780.5

Requirements, reference framework and use cases for telemonitoring systems in rapid deployment hospitals  

F.781.1

General framework of quality control of medical images for machine learning applications  

F.781.2

Quality assessment requirements for artificial intelligence/machine learning-based software as a medical device  

F.790

Telecommunications accessibility guidelines for older persons and persons with disabilities  

F.791

Accessibility terms and definitions  

F.811

Broadband connection-oriented bearer service  

F.812

Broadband connectionless data bearer service  

F.813

Virtual path service for reserved and permanent communications  

F.850

[Withdrawn] Principles of Universal Personal Telecommunication (UPT)  
Deleted in 2022 as a consequence of the suppression of the Universal Personal Telecommunication (UPT) service

F.851

[Withdrawn] Universal Personal Telecommunication (UPT) - Service description (service set 1)  
Deleted in 2022 as a consequence of the suppression of the Universal Personal Telecommunication (UPT) service

F.852

[Withdrawn] Universal Personal Telecommunication (UPT) - Service description (service set 2)  
Deleted in 2022 as a consequence of the suppression of the Universal Personal Telecommunication (UPT) service

F.853

[Withdrawn] Supplementary services in the Universal Personal Telecommunication (UPT) environment  
Deleted in 2022 as a consequence of the suppression of the Universal Personal Telecommunication (UPT) service

F.901

Usability evaluation of telecommunication services  

F.902

Interactive services design guidelines  

F.910

Procedures for designing, evaluating and selecting symbols, pictograms and icons  

F.921

Audio-based indoor and outdoor network navigation system for persons with vision impairment  

F.922

Requirements of information service systems for visually impaired persons  

F.930

Multimedia telecommunication relay services  

F.Sup1

Definitions relating to telegraph, telematic and data transmission services  

F.Sup2

Terms and definitions for telex  

F.Sup3

Overview of Telecom Finance (Finance2.0)  

F.Sup4

Overview of convergence of artificial intelligence and blockchain  

 

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