| specification edition | Q55155149 |
| ITU-T Recommendation | Q55935585 |
| P1963 | properties for this type | official website | P856 |
| number of pages | P1104 | ||
| edition number | P393 | ||
| publication date | P577 | ||
| edition or translation of | P629 | ||
| title | P1476 |
| Q110993829 | Functional architecture of network-based driving assistance for autonomous vehicles |
| Q27051326 | Recommendation D.12 (11/1988): Measurement unit for charging by volume in the international packet-switched data communication service |
| Q26985344 | Recommendation D.193 (11/1988): Special tariff principles for privilege telecommunications |
| Q27051328 | Recommendation E.160 (11/1988): Definitions relating to national and international numbering plans |
| Q27051329 | Recommendation E.161 (11/1988): Arrangement of figures, letters and symbols on telephones and other devices that can be used for gaining access to a telephone network |
| Q27051330 | Recommendation E.161.1 (09/2008): Guidelines to select Emergency Number for public telecommunications networks |
| Q26985346 | Recommendation E.163 (11/1988): Numbering plan for the international telephone service |
| Q26985347 | Recommendation E.164 (11/1988): Numbering plan for the ISDN era |
| Q27051331 | Recommendation E.165 (11/1988): Timetable for coordinated implementation of the full capability of the numbering plan for the ISDN era (Recommendation E.164) |
| Q27051333 | Recommendation E.165.1 (10/1996): Use of escape code "0" within the E.164 numbering plan during the transition period to implementation of NPI mechanism |
| Q27051334 | Recommendation E.166 (11/1988): Numbering plan interworking in the ISDN era |
| Q26932019 | Recommendation E.422 (11/1988): Observations on international outgoing telephone calls for quality of service |
| Q27051336 | Recommendation F.1 (11/1988): Operational provisions for the international public telegram service |
| Q27051337 | Recommendation F.130 (11/1988): Maritime answer-back codes |
| Q26902142 | Recommendation F.161 (10/1984): International facsimile service between subscribers with group 4 terminals (FAX 4) |
| Q27051339 | Recommendation F.184 (11/1988): Operational provisions for the international public facsimile service between subscriber stations with group 4 facsimile machines (telefax 4) |
| Q26929437 | Recommendation F.200 (11/1980): Teletex service |
| Q26902502 | Recommendation F.200 (11/1988): Teletex service |
| Q26931536 | Recommendation F.201 (11/1980): Interworking between teletex service and telex service - General principles |
| Q26985348 | Recommendation F.203 (11/1988): Network based storage for the teletex service |
| Q26985349 | Recommendation F.220 (11/1988): Service requirements unique to the processable mode number one (PM1) used within the teletex service |
| Q26985350 | Recommendation F.230 (11/1988): Service requirements unique to the mixed mode (MM) used within the teletex service |
| Q27051340 | Recommendation F.30 (11/1988): Use of various sequences of combinations for special purposes |
| Q27051342 | Recommendation F.300 (11/1988): Videotex service |
| Q26985351 | Recommendation F.351 (11/1988): General principles on the presentation of terminal identification to users of the telematic services |
| Q27051344 | Recommendation F.421 (11/1988): Message handling services: Intercommunication between the IPM service and the telex service |
| Q26985352 | Recommendation F.422 (11/1988): Message handling services: Intercommunication between the IPM service and the teletex service |
| Q26985353 | Recommendation F.60 (11/1988): Operational provisions for the international telex service |
| Q27051345 | Recommendation F.61 (11/1988): Operational provisions relating to the chargeable duration of a telex call |
| Q27051346 | Recommendation F.64 (11/1988): Determination of the number of international telex circuits required to carry a given volume of traffic |
| Q26985356 | Recommendation F.67 (10/1984): Charging and accounting in the international telex service |
| Q27051348 | Recommendation F.68 (11/1988): Establishment of the automatic intercontinental telex network |
| Q26985355 | Recommendation F.69 (11/1988): Plan for telex destination codes |
| Q27051350 | Recommendation G.114 (11/1988): Mean one-way propagation time |
| Q27051352 | Recommendation G.117 (11/1988): Transmission aspects of unbalance about earth (definitions and methods) |
| Q27051353 | Recommendation G.701 (11/1988): Vocabulary of digital transmission and multiplexing, and pulse code modulation (PCM) terms |
| Q27051355 | Recommendation G.703 (11/1988): Physical/electrical characteristics of hierarchical digital interfaces |
| Q27051356 | Recommendation G.704 (11/1988): Synchronous frame structures used at primary and secondary hierarchical levels |
| Q27051357 | Recommendation G.706 (11/1988): Frame alignment and cyclic redundancy check (CRC) procedures relating to basic frame structures defined in Recommendation G.704 |
| Q27051359 | Recommendation G.711 (11/1988): Pulse code modulation (PCM) of voice frequencies |
| Q27051367 | Recommendation G.721 (11/1988): 32 kbit/s adaptive differential pulse code modulation (ADPCM) |
| Q27051369 | Recommendation G.722 (11/1988): 7 kHz audio-coding within 64 kbit/s |
| Q27051370 | Recommendation G.725 (11/1988): System aspects for the use of the 7 kHz audio codec within 64 kbit/s |
| Q27051371 | Recommendation G.812 (11/1988): Timing requirements at the outputs of slave clocks suitable for plesiochronous operation of international digital links |
| Q27051373 | Recommendation G.960 (11/1988): Digital section for ISDN basic rate access |
| Q27051374 | Recommendation G.961 (11/1988): Digital transmission system on metallic local lines for ISDN basic rate access |
| Q27051375 | Recommendation H.261 (11/1988): Video codec for audiovisual services at p x 384 kbit/s |
| Q26689568 | Recommendation H.262 (02/00): Information technology—Generic coding of moving pictures and associated audio information: Video |
| Q26689566 | Recommendation H.262 (02/12): Information technology—Generic coding of moving pictures and associated audio information: Video |
| Q26689570 | Recommendation H.262 (07/95): Information technology—Generic coding of moving pictures and associated audio information: Video |
| Q27051797 | Recommendation H.265 (04/2015): High efficiency video coding |
| Q27051376 | Recommendation I.112 (11/1988): Vocabulary of terms for ISDNs |
| Q27051378 | Recommendation I.120 (11/1988): Integrated services digital networks (ISDNs) |
| Q26985357 | Recommendation I.122 (11/1988): Framework for providing additional packet mode bearer services |
| Q27051379 | Recommendation I.130 (11/1988): Method for the characterization of telecommunication services supported by an ISDN and network capabilities of an ISDN |
| Q27051380 | Recommendation I.140 (11/1988): Attribute technique for the characterization of telecommunication services supported by an ISDN and network capabilities of an ISDN |
| Q27051382 | Recommendation I.210 (11/1988): Principles of telecommunication services supported by an ISDN and the means to describe them |
| Q27051384 | Recommendation I.220 (11/1988): Common dynamic description of basic telecommunication services |
| Q27051385 | Recommendation I.230 (11/1988): Definition of bearer service categories |
| Q27051386 | Recommendation I.231.1 (11/1988): Circuit-mode bearer service categories : Circuit-mode 64 kbit/s unrestricted, 8 kHz structured bearer service |
| Q27051404 | Recommendation I.231.10 (08/1992): Circuit-mode bearer service categories : Circuit-mode multiple-rate unrestricted 8 kHz structured bearer service |
| Q27051388 | Recommendation I.231.2 (11/1988): Circuit-mode bearer service categories : Circuit-mode 64 kbit/s, 8 kHz structured bearer service usable for speech information transfer |
| Q27051389 | Recommendation I.231.3 (11/1988): Circuit-mode bearer service categories : Circuit-mode 64 kbit/s, 8 kHz structured bearer service usable for 3.1 kHz audio information transfer |
| Q27051390 | Recommendation I.231.4 (11/1988): Circuit-mode bearer service categories : Circuit-mode, alternate speech / 64 kbit/s unrestricted, 8 kHz structured bearer service |
| Q27051392 | Recommendation I.231.5 (11/1988): Circuit-mode bearer service categories : Circuit-mode 2 x 64 kbit/s unrestricted, 8 kHz structured bearer service |
| Q27051393 | Recommendation I.231.6 (11/1988): Circuit-mode bearer service categories : Circuit-mode 384 kbit/s unrestricted, 8 kHz structured bearer service |
| Q27051395 | Recommendation I.231.7 (11/1988): Circuit-mode bearer service categories : Circuit-mode 1536 kbit/s unrestricted, 8 kHz structured bearer service |
| Q27051397 | Recommendation I.231.8 (11/1988): Circuit-mode bearer service categories : Circuit-mode 1920 kbit/s unrestricted, 8 kHz structured bearer service |
| Q27051398 | Recommendation I.231.9 (03/1993): Circuit-mode bearer service categories : Circuit-mode 64 kbit/s 8 kHz structured multi-use bearer service |
| Q27051406 | Recommendation I.232.1 (11/1988): Packet-mode bearer services categories : Virtual call and permanent virtual circuit bearer service category |
| Q27051408 | Recommendation I.232.3 (03/1993): Packet-mode bearer services categories : User signalling bearer service category (USBS) |
| Q27051409 | Recommendation I.240 (11/1988): Definition of teleservices |
| Q26985358 | Recommendation I.241.1 (11/1988): Teleservices supported by an ISDN: Telephony |
| Q26985359 | Recommendation I.241.2 (11/1988): Teleservices supported by an ISDN: Teletex |
| Q26985360 | Recommendation I.241.3 (11/1988): Teleservices supported by an ISDN: Telefax 4 |
| Q26985361 | Recommendation I.241.4 (11/1988): Teleservices supported by an ISDN: Mixed mode |
| Q26985362 | Recommendation I.241.5 (11/1988): Teleservices supported by an ISDN: Videotex |
| Q26985365 | Recommendation I.241.6 (11/1988): Teleservices supported by an ISDN: Telex |
| Q26985366 | Recommendation I.241.7 (11/1988): Teleservices supported by an ISDN: Telephony 7 kHz teleservice |
| Q26985368 | Recommendation I.241.8 (10/1995): Teleservices supported by an ISDN: Teleaction stage one service description |
| Q26985369 | Recommendation I.251.1 (11/1988): Number identification supplementary services: Direct-Dialling-In (DDI) |
| Q26985382 | Recommendation I.251.10 (07/1996): Number identification supplementary services: Calling name identification restriction |
| Q26985371 | Recommendation I.251.2 (11/1988): Number identification supplementary services: Multiple Subscriber Number (MSN) |
| Q26985372 | Recommendation I.251.3 (11/1988): Number identification supplementary services: Calling Line Identification Presentation (CLIP) |
| Q26985373 | Recommendation I.251.4 (11/1988): Number identification supplementary services: Calling Line Identification Restriction (CLIR) |
| Q26985377 | Recommendation I.251.5 (11/1988): Number identification supplementary services: Connected Line Identification Presentation (COLP) |
| Q26985378 | Recommendation I.251.6 (11/1988): Number identification supplementary services: Connected Line Identification Restriction (COLR) |
| Q26985379 | Recommendation I.251.7 (11/1988): Number identification supplementary services: Malicious Call Identification (MCID) |
| Q26985380 | Recommendation I.251.8 (11/1988): Number identification supplementary services: Sub-addressing (SUB) |
| Q26985381 | Recommendation I.251.9 (07/1996): Number identification supplementary services: Calling name identification presentation |
| Q26985384 | Recommendation I.252.1 (11/1988): Call offering supplementary services: Call Transfer |
| Q26985385 | Recommendation I.252.2 (11/1988): Call offering supplementary services: Call Forwarding Busy (CFB) |
| Q26985387 | Recommendation I.252.3 (11/1988): Call offering supplementary services: Call Forwarding No Reply (CFNR) |
| Q26985388 | Recommendation I.252.4 (11/1988): Call offering supplementary services: Call Forwarding Unconditional (CFU) |
| Q26985389 | Recommendation I.252.5 (11/1988): Call offering supplementary services: Call Deflection (CD) |
| Q26985390 | Recommendation I.252.6 (11/1988): Call offering supplementary services: Line Hunting (LH) |
| Q26985391 | Recommendation I.252.7 (05/1997): Call offering supplementary services: Explicit call transfer |
| Q26985392 | Recommendation I.253.1 (11/1988): Call completion supplementary services: Call waiting |
| Q26985394 | Recommendation I.253.2 (11/1988): Call completion supplementary services: Call Hold (HOLD) |
| Q26985396 | Recommendation I.253.3 (07/1996): Call completion supplementary services: Completion of calls to busy subscribers |
| Q26985405 | Recommendation I.253.4 (07/1996): Call completion supplementary services: Completion of calls on no reply |
| Q26985409 | Recommendation I.254.1 (11/1988): Multiparty supplementary services: Conference calling (CONF) |
| Q26985411 | Recommendation I.254.2 (11/1988): Multiparty supplementary services: Three-Party Supplementary Service (3PTY) |
| Q26985412 | Recommendation I.254.5 (05/1997): Multiparty supplementary services: Meet-me conference |
| Q26985413 | Recommendation I.255.1 (11/1988): Community of interest supplementary services: Closed User Group (CUG) |
| Q26985414 | Recommendation I.255.2 (07/1996): Community of interest supplementary services: Support of Private Numbering Plans |
| Q26985415 | Recommendation I.255.3 (07/1990): Community of interest supplementary services: Multi-level precedence and preemption service (MLPP) |
| Q26985427 | Recommendation I.255.4 (07/1990): Community of interest supplementary services: Priority service |
| Q26985429 | Recommendation I.255.5 (08/1992): Community of interest supplementary services: Outgoing call barring |
| Q26985432 | Recommendation I.256.2a (11/1988): Charging supplementary services: Advice of charge (AOC) |
| Q26985433 | Recommendation I.256.2b (03/1993): Charging supplementary services: Advice of charge: charging information during the call (AOC-D) |
| Q26985435 | Recommendation I.256.2c (03/1993): Charging supplementary services: Advice of charge: charging information at the end of the call (AOC-E) |
| Q26985436 | Recommendation I.256.3 (08/1992): Charging supplementary services: Reverse charging |
| Q26985437 | Recommendation I.257.1 (11/1988): Additional information transfer supplementary services: User-to-User Signalling (UUS) |
| Q26985438 | Recommendation I.258.1 (10/1995): Mobility and modification supplementary services: Terminal portability (TP) |
| Q26985440 | Recommendation I.258.2 (02/1995): Mobility and modification supplementary services: In-call modification (IM) |
| Q26985441 | Recommendation I.259.1 (07/1996): Screening supplementary services: Address screening (ADS) |
| Q27051410 | Recommendation I.320 (11/1988): ISDN protocol reference model |
| Q27051412 | Recommendation I.330 (11/1988): ISDN numbering and addressing principles |
| Q27051414 | Recommendation I.334 (11/1988): Principles relating ISDN numbers/sub-addresses to the OSI reference model network layer addresses |
| Q27051415 | Recommendation I.340 (11/1988): ISDN connection types |
| Q27051416 | Recommendation I.411 (11/1988): ISDN user-network interfaces - Reference configurations |
| Q27051418 | Recommendation I.412 (11/1988): ISDN user-network interfaces - Interface structures and access capabilities |
| Q27051419 | Recommendation I.420 (11/1988): Basic user-network interface |
| Q26985442 | Recommendation I.430 (11/1988): Basic user-network interface - Layer 1 specification |
| Q26985443 | Recommendation I.431 (11/1988): Primary rate user-network interface - Layer 1 specification |
| Q27051592 | Recommendation I.460 (11/1988): Multiplexing, rate adaption and support of existing interfaces |
| Q27051423 | Recommendation I.462 (11/1988): Signalling between the outgoing international R2 register and an incoming R2 register in an international exchange |
| Q27051424 | Recommendation I.463 (11/1988): Signalling between the outgoing international R2 register and an incoming R2 register in a national exchange in the destination country |
| Q27051426 | Recommendation I.604 (11/1988): Application of maintenance principles to ISDN primary rate accesses |
| Q27051427 | Recommendation M.125 (11/1988): Digital loopback mechanisms |
| Q27051428 | Recommendation M.20 (11/1988): Maintenance philosophy for telecommunications networks |
| Q27051639 | Recommendation O.121 (10/1984): Measuring arrangements to assess the degree of unbalance about earth |
| Q27051432 | Recommendation Q.512 (11/1988): Exchange interfaces for subscriber access |
| Q27051434 | Recommendation Q.699 (11/1988): Interworking between the digital Subscriber Signalling System layer 3 protocol and the Signalling System No. 7 ISDN User Part |
| Q27051436 | Recommendation Q.920 (11/1988): ISDN user-network interface data link layer - General aspects |
| Q26985444 | Recommendation Q.921 (11/1988): ISDN user-network interface - Data link layer specification |
| Q27051437 | Recommendation Q.930 (11/1988): ISDN user-network interface layer 3 - General aspects |
| Q26985446 | Recommendation Q.931 (11/1988): ISDN user-network interface layer 3 specification for basic call control |
| Q27051441 | Recommendation Q.932 (11/1988): Generic procedures for the control of ISDN supplementary services |
| Q27051430 | Recommendation R.79 (11/1988): Automatic tests of transmission quality on telegraph circuits between switching centres |
| Q27051431 | Recommendation R.90 (11/1988): Organization for locating and clearing faults in international telegraph switched networks |
| Q27051443 | Recommendation S.1 (11/1988): International Telegraph Alphabet No. 2 |
| Q27051444 | Recommendation S.11 (11/1988): Use of start-stop reperforating equipment for perforated tape retransmission |
| Q27051446 | Recommendation S.15 (11/1988): Use of the telex network for data transmission at 50 bauds |
| Q27051448 | Recommendation S.20 (11/1988): Automatic clearing procedure for a telex terminal |
| Q26985447 | Recommendation S.4 (11/1988): Special use of certain characters of the International Telegraph Alphabet No. 2 |
| Q27051449 | Recommendation S.6 (11/1988): Characteristics of answerback units (ITA2) |
| Q26932013 | Recommendation S.60 (11/1980): Terminal equipment for use in the teletex service |
| Q26932014 | Recommendation S.61 (11/1980): Character repertoire and coded character sets for the international teletex service |
| Q26932015 | Recommendation S.70 (11/1980): Network-independent basic transport service for teletex |
| Q27051450 | Recommendation S.9 (11/1988): Switching equipment of start-stop apparatus |
| Q26985448 | Recommendation T.100 (11/1988): International information exchange for interactive Videotex |
| Q26985449 | Recommendation T.101 (11/1988): International interworking for Videotex services |
| Q26985450 | Recommendation T.101 (11/1994): International interworking for Videotex services |
| Q27051451 | Recommendation T.2 (11/1988): Standardization of Group 1 facsimile apparatus for document transmission |
| Q27051452 | Recommendation T.3 (11/1988): Standardization of Group 2 facsimile apparatus for document transmission |
| Q26985451 | Recommendation T.30 (11/1988): Procedures for document facsimile transmission in the general switched telephone network |
| Q26985452 | Recommendation T.300 (11/1988): General principles of telematic interworking |
| Q26931538 | Recommendation T.330 (11/1980): Telematic access to interpersonal messaging system |
| Q26931539 | Recommendation T.35 (11/1988): Procedure for the allocation of CCITT members' codes for non-standard facilities |
| Q26931541 | Recommendation T.390 (11/1988): Teletex requirements for interworking with the telex service |
| Q26711777 | Recommendation T.4 (03/93): Standardization of Group 3 facsimile terminals for document transmission |
| Q26711783 | Recommendation T.4 (04/99): Standardization of Group 3 facsimile terminals for document transmission |
| Q26711786 | Recommendation T.4 (07/2003): Standardization of Group 3 facsimile terminals for document transmission |
| Q26711780 | Recommendation T.4 (07/96): Standardization of Group 3 facsimile terminals for document transmission |
| Q26711775 | Recommendation T.4 (09/92): Standardization of Group 3 facsimile terminals for document transmission |
| Q26711772 | Recommendation T.4 (11/1988): Standardization of Group 3 facsimile terminals for document transmission |
| Q26931543 | Recommendation T.400 (11/1988): Introduction to document architecture, transfer and manipulation |
| Q26931544 | Recommendation T.411 (11/1988): Open document architecture (ODA) and interchange format - Introduction and general principles |
| Q26931545 | Recommendation T.412 (11/1988): Open document architecture (ODA) and interchange format - Document structures |
| Q26931546 | Recommendation T.413 (11/1994): Information technology - Open Document Architecture (ODA) and interchange format: Abstract interface for the manipulation of ODA documents |
| Q26931547 | Recommendation T.414 (11/1988): Open document architecture (ODA) and interchange format - Document profile |
| Q26931548 | Recommendation T.415 (11/1988): Open document architecture (ODA) and interchange format - Open document interchange format (ODIF) |
| Q26931549 | Recommendation T.416 (11/1988): Open document architecture (ODA) and interchange format - Character content architectures |
| Q26931550 | Recommendation T.417 (11/1988): Open document architecture (ODA) and interchange format - Raster graphics content architectures |
| Q26931551 | Recommendation T.418 (11/1988): Open document architecture (ODA) and interchange format - Geometric graphics content architecture |
| Q26931552 | Recommendation T.419 (08/1995): Information technology - Open Document Architecture (ODA) and interchange format: Audio content architectures |
| Q26931553 | Recommendation T.421 (11/1994): Information technology - Open Document Architecture (ODA) and interchange format: Tabular structures and tabular layout |
| Q26931554 | Recommendation T.422 (08/1995): Information technology - Open Document Architecture (ODA) and interchange format: Identification of document fragments |
| Q26931555 | Recommendation T.424 (07/1996): Information technology - Open Document Architecture (ODA) and interchange format: Temporal relationships and non-linear structures |
| Q26931556 | Recommendation T.431 (11/1988): Document transfer and manipulation (DTAM) - Services and protocols - Introduction and general principles |
| Q26931558 | Recommendation T.432 (11/1988): Document transfer and manipulation (DTAM) - Services and protocols - Service definition |
| Q26931559 | Recommendation T.433 (11/1988): Document transfer and manipulation (DTAM) - Services and protocols - Protocol specification |
| Q26931560 | Recommendation T.434 (09/1992): Binary file transfer format for the telematic services |
| Q26931562 | Recommendation T.435 (08/1995): Document Transfer And Manipulation (DTAM) - Services and protocols - Abstract service definition and procedures for confirmed document manipulation |
| Q26931563 | Recommendation T.436 (08/1995): Document Transfer and Manipulation (DTAM) - Services and protocols - Protocol specifications for confirmed document manipulation |
| Q26931565 | Recommendation T.441 (11/1988): Document Transfer And Manipulation (DTAM) - Operational structure |
| Q26932011 | Recommendation T.5 (10/1984): General aspects of Group 4 facsimile apparatus |
| Q26902524 | Recommendation T.50 (11/1988): International Alphabet No. 5 |
| Q27051454 | Recommendation T.501 (11/1988): A document application profile MM for the interchange of formatted mixed mode documents |
| Q27051456 | Recommendation T.502 (11/1988): Document application profile PM1 for the interchange of processable form documents |
| Q26894589 | Recommendation T.503 (11/1988): A document application profile for the interchange of Group 4 facsimile documents |
| Q27051458 | Recommendation T.504 (11/1988): Document application profile for videotex interworking |
| Q26902528 | Recommendation T.51 (11/1988): Coded character sets for telematic services |
| Q26896426 | Recommendation T.521 (11/1988): Communication application profile BT0 for document bulk transfer based on the session service (according to the rules defined in T.62 bis) |
| Q27051459 | Recommendation T.522 (11/1988): Communication application profile BT1 for document bulk transfer |
| Q27051461 | Recommendation T.523 (11/1988): Communication application profile DM-1 for videotex interworking |
| Q27051463 | Recommendation T.541 (11/1988): Operational application profile for videotex interworking |
| Q26928604 | Recommendation T.561 (11/1988): Terminal characteristics for mixed mode of operation MM |
| Q26928603 | Recommendation T.562 (11/1988): Terminal characteristics for teletex processable mode PM.1 |
| Q26896694 | Recommendation T.563 (11/1988): Terminal characteristics for Group 4 facsimile apparatus |
| Q27051464 | Recommendation T.564 (11/1988): Gateway characteristics for videotex interworking |
| Q26932012 | Recommendation T.6 (10/1984): Facsimile coding schemes and coding control functions for Group 4 facsimile apparatus |
| Q26887334 | Recommendation T.6 (11/1988): Facsimile coding schemes and coding control functions for Group 4 facsimile apparatus |
| Q26902146 | Recommendation T.60 (11/1988): Terminal equipment for use in the teletex service |
| Q26902151 | Recommendation T.61 (11/1988): Character repertoire and coded character sets for the international teletex service |
| Q26896700 | Recommendation T.62 (11/1988): Control procedures for teletex and Group 4 facsimile services |
| Q26896704 | Recommendation T.62bis (11/1988): Control procedures for teletex and G4 facsimile services based on Recommendations X.215 and X.225 |
| Q26902004 | Recommendation T.70 (11/1988): Network-independent basic transport service for the telematic services |
| Q26928848 | Recommendation T.71 (11/1988): Link access protocol balanced (LAPB) extended for half-duplex physical level facility |
| Q26902393 | Recommendation T.72 (10/1984): Terminal capabilities for mixed mode of operation |
| Q26896699 | Recommendation T.73 (10/1984): Document interchange protocol for the telematic services |
| Q26601469 | Recommendation T.80 (09/92): Common components for image compression and communication—Basic principles |
| Q26289072 | Recommendation T.81 (09/92): Information technology—Digital compression and coding of continuous-tone still images—Requirements and guidelines |
| Q26689555 | Recommendation T.82 (03/93): Information technology—Coded representation of picture and audio information—Progressive bi-level image compression |
| Q26689562 | Recommendation T.83 (11/94): Information technology—Digital compression and coding of continuous-tone still images: Compliance testing |
| Q26386322 | Recommendation T.84 (07/96): Information technology—Digital compression and coding of continuous-tone still images—Extensions |
| Q26985460 | Recommendation T.85 (08/1995): Application profile for Recommendation T.82 - Progressive bi-level image compression (JBIG coding scheme) for facsimile apparatus |
| Q26689683 | Recommendation T.86 (06/98): Information technology—Digital compression and coding of continuous-tone still images: Registration of JPEG Profiles, SPIFF Profiles, SPIFF Tags, SPIFF colour Spaces, APPn Markers, SPIFF Compression types and Registration authorities (REGAUT) |
| Q26985462 | Recommendation T.87 (06/1998): Information technology – Lossless and near-lossless compression of continuous-tone still images – Baseline |
| Q26289529 | Recommendation T.871 (05/2011): Information technology—Digital compression and coding of continuous-tone still images—JPEG File Interchange Format (JFIF) |
| Q26985463 | Recommendation T.88 (02/2000): Information technology – Lossy/lossless coding of bi-level images |
| Q26985464 | Recommendation T.89 (09/2001): Application profiles for Recommendation T.88 - Lossy/lossless coding of bi-level images (JBIG2) for facsimile |
| Q26928849 | Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN |
| Q26932016 | Recommendation T.91 (10/1984): Teletex requirements for real-time interworking with the telex service in a packetswitching network environment |
| Q27051466 | Recommendation U.1 (11/1988): Signalling conditions to be applied in the international telex service |
| Q27051467 | Recommendation U.11 (11/1988): Telex and gentex signalling on intercontinental circuits used for intercontinental automatic transit traffic (type C signalling) |
| Q26985466 | Recommendation U.12 (11/1988): Terminal and transit control signalling system for telex and similar services on international circuits (type D signalling) |
| Q27051469 | Recommendation U.15 (11/1988): Interworking rules for international signalling systems according to Recommendations U.1, U.11 and U.12 |
| Q26985467 | Recommendation U.201 (11/1988): Interworking between the teletex service and the telex service |
| Q27051470 | Recommendation U.202 (11/1988): Requirements to be met in providing the telex service within the ISDN |
| Q27051471 | Recommendation U.21 (11/1988): Operator recall on a telex call set up on a radiotelegraph circuit |
| Q27051474 | Recommendation U.22 (11/1988): Signals indicating delay in transmission on calls set up by means of synchronous systems with automatic error correction by repetition |
| Q26985468 | Recommendation U.40 (11/1988): Reactions by automatic terminals connected to the telex network in the event of ineffective call attempts or signalling incidents |
| Q27051475 | Recommendation U.41 (11/1988): Changed address interception and call redirection in the telex service |
| Q27051482 | Recommendation U.43 (11/1988): Follow-on calls |
| Q27051484 | Recommendation U.44 (11/1988): Multi-address calls in real time for broadcast purposes in the international telex service |
| Q27051486 | Recommendation U.45 (11/1988): Response to the not-ready condition of the telex terminal |
| Q27051488 | Recommendation U.7 (11/1988): Numbering schemes for automatic switching networks |
| Q26985469 | Recommendation U.70 (11/1988): Telex service signals for telex to teletex interworking |
| Q26985470 | Recommendation U.74 (11/1988): Extraction of telex selection information from a calling telex answerback |
| Q26985471 | Recommendation U.75 (11/1988): Automatic called telex answerback check |
| Q27051489 | Recommendation V.1 (11/1988): Equivalence between binary notation symbols and the significant conditions of a two-condition code |
| Q27051490 | Recommendation V.110 (11/1988): Support of data terminal equipments (DTEs) with V-series type interfaces by an integrated services digital network (ISDN) |
| Q27051492 | Recommendation V.120 (11/1988): Support by an ISDN of data terminal equipment with V-series type interfaces with provision for statistical multiplexing |
| Q27051494 | Recommendation V.2 (11/1988): Power levels for data transmission over telephone lines |
| Q27051495 | Recommendation V.21 (11/1988): 300 bits per second duplex modem standardized for use in the general switched telephone network |
| Q26928836 | Recommendation V.22 (11/1988): 1200 bits per second duplex modem standardized for use in the general switched telephone network and on point-to-point 2-wire leased telephone-type circuits |
| Q26928837 | Recommendation V.22bis (11/1988): 2400 bits per second duplex modem using the frequency division technique standardized for use on the general switched telephone network and on point-to-point 2-wire leased telephone-type circuits |
| Q26985472 | Recommendation V.24 (11/1988): List of definitions for interchange circuits between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) |
| Q26928850 | Recommendation V.25 (11/1988): Automatic answering equipment and/or parallel automatic calling equipment on the general switched telephone network including procedures for disabling of echo control devices... |
| Q26985473 | Recommendation V.26bis (11/1988): 2400/1200 bits per second modem standardized for use in the general switched telephone network |
| Q26928847 | Recommendation V.26ter (11/1988): 2400 bits per second duplex modem using the echo cancellation technique standardized for use on the general switched telephone network and on point-to-point 2-wire leased telephone-type circuits |
| Q27051497 | Recommendation V.27ter (11/1988): 4800/2400 bits per second modem standardized for use in the general switched telephone network |
| Q27051499 | Recommendation V.29 (11/1988): 9600 bits per second modem standardized for use on point-to-point 4-wire leased telephone-type circuits |
| Q27051500 | Recommendation V.6 (11/1988): Standardization of data signalling rates for synchronous data transmission on leased telephone-type circuits |
| Q26985474 | Recommendation X.1 (11/1988): International user classes of service in public data networks and integrated services digital networks (ISDNs) |
| Q27051501 | Recommendation X.10 (11/1988): Categories of access for data terminal equipment (DTE) to public data transmission services |
| Q26985476 | Recommendation X.121 (11/1988): International numbering plan for public data networks |
| Q27051503 | Recommendation X.135 (11/1988): Speed of service (delay and throughput) performance values for public data networks when providing international packet-switched services |
| Q27051504 | Recommendation X.140 (11/1988): General quality of service parameters for communication via public data networks |
| Q27051505 | Recommendation X.150 (11/1988): Principles of maintenance testing for public data networks using Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) test loops |
| Q27051507 | Recommendation X.180 (11/1988): Administrative arrangements for international closed user groups (CUGs) |
| Q26985478 | Recommendation X.2 (11/1988): International data transmission services and optional user facilities in public data networks and ISDNs |
| Q26932295 | Recommendation X.200 (11/1988): Reference Model of Open Systems Interconnection for CCITT applications |
| Q26985479 | Recommendation X.208 (11/1988): Specification of Abstract Syntax Notation One (ASN.1) |
| Q27051508 | Recommendation X.209 (11/1988): Specification of Basic Encoding Rules for Abstract Syntax Notation One (ASN.1) |
| Q26928834 | Recommendation X.21 (11/1988): Interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) for synchronous operation on public data networks |
| Q27051509 | Recommendation X.211 (11/1988): Physical service definition of open systems interconnection for CCITT applications |
| Q26985482 | Recommendation X.213 (11/1988): Network service definition for Open Systems Interconnection for CCITT applications |
| Q26932296 | Recommendation X.214 (11/1988): Transport service definition for Open Systems Interconnection for CCITT applications |
| Q26932298 | Recommendation X.215 (11/1988): Session service definition for Open Systems Interconnection for CCITT applications |
| Q27051511 | Recommendation X.216 (11/1988): Presentation service definition for Open Systems Interconnection for CCITT applications |
| Q27051513 | Recommendation X.217 (11/1988): Association control service definition for Open Systems Interconnection for CCITT applications |
| Q26985483 | Recommendation X.219 (11/1988): Remote Operations: Model, notation and service definition |
| Q26985484 | Recommendation X.21bis (11/1988): Use on public data networks of Data Terminal Equipment (DTE) which is designed for interfacing to synchronous V-Series modems |
| Q26985485 | Recommendation X.22 (11/1988): Multiplex DTE/DCE interface for user classes 3-6 |
| Q27051514 | Recommendation X.223 (11/1988): Use of X.25 to provide the OSI connection-mode network service for CCITT applications |
| Q26932299 | Recommendation X.224 (11/1988): Transport protocol specification for Open Systems Interconnection for CCITT applications |
| Q26932300 | Recommendation X.225 (11/1988): Session protocol specification for Open Systems Interconnection for CCITT applications |
| Q27051515 | Recommendation X.226 (11/1988): Presentation protocol specification for Open Systems Interconnection for CCITT applications |
| Q27051517 | Recommendation X.227 (11/1988): Association control protocol specification for Open Systems Interconnection for CCITT applications |
| Q27051519 | Recommendation X.244 (11/1988): Procedure for the exchange of protocol identification during virtual call establishment on Packet Switched Public Data Networks |
| Q26985486 | Recommendation X.25 (10/1984): Interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) for terminals operating in the packet mode and connected to public data networks by dedicated circuit |
| Q26928835 | Recommendation X.25 (11/1988): Interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) for terminals operating in the packet mode and connected to public data networks by dedicated circuit |
| Q27051520 | Recommendation X.29 (11/1988): Procedures for the exchange of control information and user data between a packet assembly/disassembly (PAD) facility and a packet mode DTE or another PAD |
| Q27051522 | Recommendation X.3 (11/1988): Packet assembly/disassembly facility (PAD) in a public data network |
| Q26985487 | Recommendation X.30 (11/1988): Support of X.21, X.21 bis and X.20 bis based data terminal equipments (DTEs) by an integrated services digital network (ISDN) |
| Q26985488 | Recommendation X.300 (11/1988): General principles for interworking between public networks and between public networks and other networks for the provision of data transmission services |
| Q27051523 | Recommendation X.301 (11/1988): Description of the general arrangements for call control within a subnetwork and between subnetworks for the provision of data transmission services |
| Q26985489 | Recommendation X.31 (11/1988): Support of packet mode terminal equipment by an ISDN |
| Q26985500 | Recommendation X.32 (11/1988): Interface between DTE and DCE for terminals operating in the packet mode and accessing a packet switched public data network... |
| Q27051525 | Recommendation X.4 (11/1988): General structure of signals of International Alphabet No. 5 code for character oriented data transmission over public data networks |
| Q26985501 | Recommendation X.400 (10/1984): Message handling systems: system model-service elements |
| Q26985502 | Recommendation X.402 (11/1988): Message handling systems: Overall architecture |
| Q26985503 | Recommendation X.407 (11/1988): Message handling systems: Abstract service definition conventions |
| Q26985504 | Recommendation X.411 (11/1988): Message handling systems: Message transfer system: abstract service definition and procedures |
| Q26985505 | Recommendation X.413 (11/1988): Message handling systems: Message store: Abstract-service definition |
| Q26985506 | Recommendation X.419 (11/1988): Message handling systems: Protocol specifications |
| Q26985510 | Recommendation X.420 (11/1988): Message handling systems: Interpersonal messaging system |
| Q27051526 | Recommendation X.5 (02/1992): Facsimile Packet Assembly/Disassembly facility (FPAD) in a public data network |
| Q28904536 | Recommendation X.660 (07/2011): Information technology – Procedures for the operation of object identifier registration authorities: General procedures and top arcs of the international object identifier tree |
| Q27051527 | Recommendation X.70 (11/1988): Terminal and transit control signalling system for start-stop services on international circuits between anisochronous data networks |
| Q27051529 | Recommendation X.71 (11/1988): Decentralized terminal and transit control signalling system on international circuits between synchronous data networks |
| Q27033477 | Recommendation X.75 (10/1984): Terminal and transit call control procedures and data transfer system on international circuits between packet-switched data networks |
| Q26985512 | Recommendation X.75 (11/1988): Packet-switched signalling system between public networks providing data transmission services |
| Q26985514 | Recommendation X.82 (11/1988): Detailed arrangements for interworking between CSPDNs and PSPDNs based on Recommendation T.70 |
| Q27051531 | Recommendation X.87 (10/2003): Multiple services ring based on RPR |
| Q27051532 | Recommendation X.92 (11/1988): Hypothetical reference connections for public synchronous data networks |
| Q27051534 | Recommendation X.96 (11/1988): Call progress signals in public data networks |
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