Recommendation Q.931 (11/1988): ISDN user-network interface layer 3 specification for basic call control (Q26985446)

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superseded recommendation/international standard from the International Telecommunication Union

ITU-T Q.931
ITU-T I.451

Language	Label	Description	Also known as
English	Recommendation Q.931 (11/1988): ISDN user-network interface layer 3 specification for basic call control	superseded recommendation/international standard from the International Telecommunication Union	ITU-T Q.931 ITU-T I.451

Statements

ITU-T recommendation version

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ISDN user-network interface layer 3 specification for basic call control (English)

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11/1988

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ITU Telecommunication Standardization Sector

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language of work or name

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publication date

25 November 1988

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number of pages

352

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official website

http://www.itu.int/rec/T-REC-Q.931-198811-S/en

language of work or name

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full work available at URL

https://www.itu.int/rec/dologin_pub.asp?lang=e&id=T-REC-Q.931-198811-S!!PDF-E&type=items

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International Telecommunication Union

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Recommendation E.163 (11/1988): Numbering plan for the international telephone service

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Recommendation E.164 (11/1988): Numbering plan for the ISDN era

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Recommendation F.69 (11/1988): Plan for telex destination codes

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Recommendation G.711 (11/1988): Pulse code modulation (PCM) of voice frequencies

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Recommendation G.721 (11/1988): 32 kbit/s adaptive differential pulse code modulation (ADPCM)

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Recommendation G.722 (11/1988): 7 kHz audio-coding within 64 kbit/s

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Recommendation G.725 (11/1988): System aspects for the use of the 7 kHz audio codec within 64 kbit/s

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Recommendation H.261 (11/1988): Video codec for audiovisual services at p x 384 kbit/s

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Recommendation I.230 (11/1988): Definition of bearer service categories

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Recommendation I.231.1 (11/1988): Circuit-mode bearer service categories : Circuit-mode 64 kbit/s unrestricted, 8 kHz structured bearer service

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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

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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

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Recommendation I.231.4 (11/1988): Circuit-mode bearer service categories : Circuit-mode, alternate speech / 64 kbit/s unrestricted, 8 kHz structured bearer service

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Recommendation I.231.5 (11/1988): Circuit-mode bearer service categories : Circuit-mode 2 x 64 kbit/s unrestricted, 8 kHz structured bearer service

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Recommendation I.231.6 (11/1988): Circuit-mode bearer service categories : Circuit-mode 384 kbit/s unrestricted, 8 kHz structured bearer service

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Recommendation I.231.7 (11/1988): Circuit-mode bearer service categories : Circuit-mode 1536 kbit/s unrestricted, 8 kHz structured bearer service

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Recommendation I.231.8 (11/1988): Circuit-mode bearer service categories : Circuit-mode 1920 kbit/s unrestricted, 8 kHz structured bearer service

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Recommendation I.240 (11/1988): Definition of teleservices

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Recommendation I.241.1 (11/1988): Teleservices supported by an ISDN: Telephony

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Recommendation I.241.2 (11/1988): Teleservices supported by an ISDN: Teletex

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Recommendation I.241.3 (11/1988): Teleservices supported by an ISDN: Telefax 4

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Recommendation I.241.4 (11/1988): Teleservices supported by an ISDN: Mixed mode

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Recommendation I.241.5 (11/1988): Teleservices supported by an ISDN: Videotex

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Recommendation I.241.6 (11/1988): Teleservices supported by an ISDN: Telex

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Recommendation I.241.7 (11/1988): Teleservices supported by an ISDN: Telephony 7 kHz teleservice

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Recommendation I.257.1 (11/1988): Additional information transfer supplementary services: User-to-User Signalling (UUS)

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Recommendation I.330 (11/1988): ISDN numbering and addressing principles

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Recommendation I.334 (11/1988): Principles relating ISDN numbers/sub-addresses to the OSI reference model network layer addresses

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Recommendation I.340 (11/1988): ISDN connection types

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Recommendation I.411 (11/1988): ISDN user-network interfaces - Reference configurations

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Recommendation I.412 (11/1988): ISDN user-network interfaces - Interface structures and access capabilities

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Recommendation I.430 (11/1988): Basic user-network interface - Layer 1 specification

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Recommendation I.431 (11/1988): Primary rate user-network interface - Layer 1 specification

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Recommendation Q.920 (11/1988): ISDN user-network interface data link layer - General aspects

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Recommendation Q.921 (11/1988): ISDN user-network interface - Data link layer specification

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Recommendation Q.930 (11/1988): ISDN user-network interface layer 3 - General aspects

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Recommendation I.460 (11/1988): Multiplexing, rate adaption and support of existing interfaces

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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

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Recommendation Q.699 (11/1988): Interworking between the digital Subscriber Signalling System layer 3 protocol and the Signalling System No. 7 ISDN User Part

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Recommendation Q.932 (11/1988): Generic procedures for the control of ISDN supplementary services

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Recommendation T.50 (11/1988): International Alphabet No. 5

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Recommendation T.501 (11/1988): A document application profile MM for the interchange of formatted mixed mode documents

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Recommendation T.502 (11/1988): Document application profile PM1 for the interchange of processable form documents

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Recommendation T.503 (11/1988): A document application profile for the interchange of Group 4 facsimile documents

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Recommendation T.504 (11/1988): Document application profile for videotex interworking

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Recommendation T.70 (11/1988): Network-independent basic transport service for the telematic services

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Recommendation T.71 (11/1988): Link access protocol balanced (LAPB) extended for half-duplex physical level facility

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Recommendation V.110 (11/1988): Support of data terminal equipments (DTEs) with V-series type interfaces by an integrated services digital network (ISDN)

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Recommendation V.120 (11/1988): Support by an ISDN of data terminal equipment with V-series type interfaces with provision for statistical multiplexing

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Recommendation V.6 (11/1988): Standardization of data signalling rates for synchronous data transmission on leased telephone-type circuits

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Recommendation X.1 (11/1988): International user classes of service in public data networks and integrated services digital networks (ISDNs)

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Recommendation X.121 (11/1988): International numbering plan for public data networks

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Recommendation X.213 (11/1988): Network service definition for Open Systems Interconnection for CCITT applications

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Recommendation X.244 (11/1988): Procedure for the exchange of protocol identification during virtual call establishment on Packet Switched Public Data Networks

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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

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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)

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Recommendation X.31 (11/1988): Support of packet mode terminal equipment by an ISDN

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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...

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Recommendation X.75 (11/1988): Packet-switched signalling system between public networks providing data transmission services

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Identifiers

ITU-T Recommendation

Q.931 (11/1988)

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