Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
 

Q.931

Index Q.931

ITU-T Recommendation Q.931 is the ITU standard ISDN connection control signalling protocol, forming part of Digital Subscriber Signalling System No. [1]

26 relations: Asynchronous transfer mode, Bandwidth (computing), Broadband Integrated Services Digital Network, Circuit switching, Communication protocol, Connection-oriented communication, Connectionless communication, Data-rate units, Digital Subscriber System No. 1, Finite-state machine, Flow control (data), H.225.0, H.323, Information element, Integrated Services Digital Network, ITU-T, Jitter, Mobile phone, Network switching subsystem, OSI model, Session Initiation Protocol, Signaling (telecommunications), Traffic management, Transmission Control Protocol, User Datagram Protocol, User equipment.

Asynchronous transfer mode

Asynchronous transfer mode (ATM) is, according to the ATM Forum, "a telecommunications concept defined by ANSI and ITU (formerly CCITT) standards for carriage of a complete range of user traffic, including voice, data, and video signals".

New!!: Q.931 and Asynchronous transfer mode · See more »

Bandwidth (computing)

In computing, bandwidth is the maximum rate of data transfer across a given path.

New!!: Q.931 and Bandwidth (computing) · See more »

Broadband Integrated Services Digital Network

In the 1980s the telecommunications industry expected that digital services would follow much the same pattern as voice services did on the public switched telephone network, and conceived an end-to-end circuit switched services, known as Broadband Integrated Services Digital Network (B-ISDN).

New!!: Q.931 and Broadband Integrated Services Digital Network · See more »

Circuit switching

Circuit switching is a method of implementing a telecommunications network in which two network nodes establish a dedicated communications channel (circuit) through the network before the nodes may communicate.

New!!: Q.931 and Circuit switching · See more »

Communication protocol

In telecommunication, a communication protocol is a system of rules that allow two or more entities of a communications system to transmit information via any kind of variation of a physical quantity.

New!!: Q.931 and Communication protocol · See more »

Connection-oriented communication

Connection-oriented communication is a network communication mode in telecommunications and computer networking, where a communication session or a semi-permanent connection is established before any useful data can be transferred, and where a stream of data is delivered in the same order as it was sent.

New!!: Q.931 and Connection-oriented communication · See more »

Connectionless communication

Connectionless communication, often referred to as CL-mode communication,Information Processing Systems - Open Systems Interconnection, "Transport Service Definition - Addendum 1: Connectionless-mode Transmission", International Organization for Standardization, International Standard 8072/AD 1, December 1986.

New!!: Q.931 and Connectionless communication · See more »

Data-rate units

In telecommunications, data-transfer rate is the average number of bits (bitrate), characters or symbols (baudrate), or data blocks per unit time passing through a communication link in a data-transmission system.

New!!: Q.931 and Data-rate units · See more »

Digital Subscriber System No. 1

Digital Subscriber Signalling System No. 1 (DSS1) is a digital signalling protocol (D channel protocol) used for the ISDN.

New!!: Q.931 and Digital Subscriber System No. 1 · See more »

Finite-state machine

A finite-state machine (FSM) or finite-state automaton (FSA, plural: automata), finite automaton, or simply a state machine, is a mathematical model of computation.

New!!: Q.931 and Finite-state machine · See more »

Flow control (data)

In data communications, flow control is the process of managing the rate of data transmission between two nodes to prevent a fast sender from overwhelming a slow receiver.

New!!: Q.931 and Flow control (data) · See more »

H.225.0

H.225.0 is part of the H.323 family of telecommunication protocols.

New!!: Q.931 and H.225.0 · See more »

H.323

H.323 is a recommendation from the ITU Telecommunication Standardization Sector (ITU-T) that defines the protocols to provide audio-visual communication sessions on any packet network.

New!!: Q.931 and H.323 · See more »

Information element

An information element, sometimes informally referred to as a field, is an item in Q.931 and Q.2931 messages, IEEE 802.11 management frames, and cellular network messages sent between a base transceiver station and a mobile phone or similar piece of user equipment.

New!!: Q.931 and Information element · See more »

Integrated Services Digital Network

Integrated Services Digital Network (ISDN) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network.

New!!: Q.931 and Integrated Services Digital Network · See more »

ITU-T

The ITU Telecommunication Standardization Sector (ITU-T) is one of the three sectors (divisions or units) of the International Telecommunication Union (ITU); it coordinates standards for telecommunications.

New!!: Q.931 and ITU-T · See more »

Jitter

In electronics and telecommunications, jitter is the deviation from true periodicity of a presumably periodic signal, often in relation to a reference clock signal.

New!!: Q.931 and Jitter · See more »

Mobile phone

A mobile phone, known as a cell phone in North America, is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area.

New!!: Q.931 and Mobile phone · See more »

Network switching subsystem

Network switching subsystem (NSS) (or GSM core network) is the component of a GSM system that carries out call switching and mobility management functions for mobile phones roaming on the network of base stations.

New!!: Q.931 and Network switching subsystem · See more »

OSI model

The Open Systems Interconnection model (OSI model) is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system without regard to its underlying internal structure and technology.

New!!: Q.931 and OSI model · See more »

Session Initiation Protocol

The Session Initiation Protocol (SIP) is a communications protocol for signaling and controlling multimedia communication sessions in applications of Internet telephony for voice and video calls, in private IP telephone systems, as well as in instant messaging over Internet Protocol (IP) networks.

New!!: Q.931 and Session Initiation Protocol · See more »

Signaling (telecommunications)

In telecommunication, signaling has the following meanings.

New!!: Q.931 and Signaling (telecommunications) · See more »

Traffic management

Traffic management is a key branch within logistics.

New!!: Q.931 and Traffic management · See more »

Transmission Control Protocol

The Transmission Control Protocol (TCP) is one of the main protocols of the Internet protocol suite.

New!!: Q.931 and Transmission Control Protocol · See more »

User Datagram Protocol

In computer networking, the User Datagram Protocol (UDP) is one of the core members of the Internet protocol suite.

New!!: Q.931 and User Datagram Protocol · See more »

User equipment

In the Universal Mobile Telecommunications System (UMTS) and 3GPP Long Term Evolution (LTE), user equipment (UE) is any device used directly by an end-user to communicate.

New!!: Q.931 and User equipment · See more »

Redirects here:

ITU-T Recommendation Q.931, Q.2931, Q931.

References

[1] https://en.wikipedia.org/wiki/Q.931

OutgoingIncoming
Hey! We are on Facebook now! »