Definitions for "Integrated Services Digital Network"
Related Terms:
Isdn, Isdn - integrated services digital network, Isdn line, N-isdn, Dsl, Asdl, Isdn integrated services digital network, Switched 56, Voice grade, Idsl, Digital subscriber lines, Digital subscriber line, Adsl, Asymmetric digital subscriber line, G.lite, Symmetrical digital subscriber line, B-isdn, Xdsl, Asynchronous digital subscriber line, Asymmetrical digital subscriber line, Isdn bri, T-carrier, Dsl modem, Channel bank, Sdsl, Hdsl, Primary rate interface, Adsl - asymmetric digital subscriber line, Bri, Basic rate interface, Broadband integrated services digital network, T1 carrier, Radsl, D channel, Pri, D-channel, Dslam, Shdsl, Ata, Digital subscriber line access multiplexer, B channel, Pots splitter, Dov, Adsl modem, Bra, Ccs7, H.324, Digital loop carrier, Bisdn, B-channel
A public, circuit switched digital network.
An international standard for telephone transmission. ISDN provides an end-to-end digital network and provides a standard for out-of-band signaling. It also provides greater bandwidth than older telephone services. The two standard levels of ISDN are the Basic Rate Interface (BRI) and the Primary Rate Interface (PRI).
A widely available high bandwidth switched network service providing end-to-end digital connectivity over standard phone lines for simultaneous transmission of voice and data. There are two levels of service: Basic Rate Interface-ISDN (BRI-ISDN)--provides for digital transmission of two 64 kbps bearer channels and one 16 kbps data and signaling channel (2B+D). Learn more. Primary Rate Interface-ISDN (PRI-ISDN)--provides for digital transmission of twenty three (23) 64 kbps bearer channels and one (1) 64 kbps data and signaling channel (23 B+D). Learn more.
see also BRI and PRI. A switched digital service using a 16 Kbps "D" channel for signaling and two or more 64 Kbps or 56 Kbps (some US) "B" channels for data transmission.
A new network designed to improve the world's telecommunications services by providing an internationally accepted standard for voice, data, and signaling; by making all transmission circuits end-to-end digital; by adopting a standard out-of-band signaling system; and by bringing more bandwidth to the desktop.
A method of data transfer over digital or regular telephone lines similar to, but faster than, standard modems. Usual transfer rates are either 64 Kbps/sec or 128 Kbps/sec.
ISDN cards are like modems but five times faster. They require special telephone lines, which cost a little more than normal phone lines. ISDN calls are usually charged by the minute, even for local calls, but this varies from state to state.
Digital version of the good old analogue telephone line.
(ISDN) The ideas behind the need for an ISDN is that there are growing consumer requirements for digital services over long distances, demands placed on the telephone network.
(abbreviation: ISDN) A technology offered by telephone carriers that allows for the rapid transfer of voice and data.
A system for transmitting voice, video, and data over lines with digital transmission (no analog transmission).
ISDN is a high quality fixed telephone line used primarily for data transfer. ISDN is an international communications standard that allows ordinary phone lines to transmit digital instead of analogue signals, allowing data to be transmitted at a much faster rate than with a traditional modem. It is capable of transmitting voice, data and images at speeds higher than 56K.
The "Integrated Services Digital Network" is an international standard for digital communication networks that allow for telephone calls, data transmission and other value-added services. ISDN represents an enhancement of the analogue telephone network and offers each user two basic channels with 64kBit transmission capacity each, as well as a 16kBit signalling channel.
An all-digital telecommunications technology that upgrades an ordinary telephone network using analog technology to an all-digital, end-to-end network. In ISDN, equipment is able to switch and transport all types of information, such as voice, data, and video.
n. A digital end-to-end telecommunication network that supports multiple services including, but not limited to, voice and data. ISDNs are used in public and private network architectures.
A digital service offered by both T-1 and E-1 providers for the transport of digitized voice, digital data, and compressed video that supports additional features over a standard T-1 or E-1. When offered at the full T-1 or E-1 data rate, this is known as primary rate interface ISDN ( PRI ISDN) as opposed to basic rate interface ISDN ( BRI ISDN). (source)
ISDN is a concept of what the world's telephone system should be. Its goal is to eliminate the deficiencies in four ways: 1. Providing an internationally accepted standard for voice, data, and signaling. 2. Making all transmission circuits end-to-end digital. 3. Adopting a standard out-of-band signaling system. 4. Bringing significantly more bandwidth to the desktop. ISDN comes in two forms - BRI and PRI.
A type of phone line designed to handle digital information that can transfer data between computers more than twice as fast as an ordinary phone line.
A digital telecommunications technology that allows for the integrated transmission of voice, data, and video; a protocol for high-speed digital transmission.
Combines voice and digital network services in a single medium. Defined in RFC 2127.
Integrated Services Digital Network (ISDN) is a set of standards for integrating services such as voice data and video. There are two types of ISDN interfaces, the basic rate interface and the primary rate interface. Windows supports the basic rate interface as a modem class device.
A type of phone line used to enhance WAN speeds, an ISDN line can transmit at speeds of 64 or 128 kilobits per second, as opposed to standard phone lines, which typically transmit at only 9600 bits per second (bps). An ISDN line must be installed by the phone company at both the server site and the remote site. See also bits per second.
Offered by local telephone companies, ISDN provides a high speed digital connection that can transmit voice and data simultaneously. The development of ISDN began in response to the increasing use of data services by business. ISDN transmits data up to 10 times faster then a normal analog data modem. The increased speed available with ISDN allows information and graphics to reach the user much more quickly. Available in 70% of the USA, ISDN is especially useful for computer connections, particularly where high quality audio or video is desired. Two telephone lines are required and costs to the customer are about twice that of regular telephone charges
ISDN is an international communications standard for sending voice, video, and data over digital telephone lines. ISDN requires special metal wires and supports transfer rates of 64 Kbps. Most ISDN lines offered by telephone companies give you two lines at once, called B channels. You can use one line for voice and the other for data, or you can use both lines for data to give you data rates of 128 Kbps, four or five times the data rate provided by today's fastest modems.
"A network architecture that enables end-to-end digital connections. The network supports diverse services through integrated access arrangements and defines a limited set of standard
A completely digital telephone/telecommunications network for carrying voice, text, images, and video traffic at high speed by sending digitally encoded signals.
Offered by most telephone service providers, an ISDN line allows the transmission of voice and data at higher speeds than a 56 kilobits per second modem.
A set of standards for digitally encoding voice, data, and other signals over the same line. The standards are still under development.
Digital telecommunications lines with 2 channels that can yield a combined capacity of 128 kbps.
This is an international communications standard for sending voice and data over digital telephone lines. ISDN is not supported everywhere, but should be available in most major centres. ISDN offers error-free, data-transfer rates as high as 256 kbps-faster than modems.
A digital access line, abbreviated as ISDN.
A connection to the Internet installed by your Internet service provider (ISP). A dial-up ISDN line can offer speeds up to 128,000 bps.
is a set of standards for digital transmission over ordinary telephone copper wire as well as over other media.
Currently the fastest connection capable using existing phone lines. ISDN allows users to connect at speeds of 128KB per second. The ISDN line is capable of transmitting voice and data simultaneously.
A set of standards for high-speed transmission of simultaneous voice, data and video information over fewer channels than would otherwise be needed, through the use of phone lines. ISDN can provide speeds of 64,000 bits-per-second over a regular phone line at almost the same cost as a normal phone call.
An ITU B64standard for bidirectional transmission of voice, data, and video signals over public or private telephone digital networks.
ISDN is a switched digital services that is available over conventional phone circuits. It provides a cleaner signal, and thus a higher resulting bandwidth. ISDN can support up to 128 Kbps across dual channels.
Standard for simultaneous transmission of digital voice, data and video signals over standard telephone circuitry.
Digital communication line used for circuit and packet transmission of voice and data. ISDN can provide a bandwidth of up to 128Kbps.
An end-to-end digital network that will allow users to send voice, data, and video signals over the same line simultaneously. Narrowband services now in operation give users up to 24 channels to send voice and data information. In the future, broadband services available over a public ISDN are expected to offer full-motion video services as well.
Switched network providing end-to-end digital connection for simultaneous transmission of voice and/or data over multiple multiplexed communication channels and employing transmission that that conforms to internationally-defined standards. ISDN is considered to be the basis for a ?universal network? that can support almost any type of communications device or service. ISDN lines generally can provide broadband connectivity to subscribers.
A communications technology that enables digital transmission over ordinary telephone lines. Typical ISDN Internet access operates at 128 Kbps, slower than comparable DSL or cable modem service. See also Cable Modem Service, DSL, T1/T3, Dedicated Leased Line, Frame Relay
ISDN consists of a set of standards being developed by the CCITT and various U.S. standards setting organizations. The CCITT formal recommendations, adopted in October, 1984, first defined ISDN as ". . . a network, in general evolving from a telephony integrated digital network, that provides end-to-end digital connectivity to support a wide range of services, including voice and non-voice, to which users will have access by a limited set of standard multipurpose user-network interfaces." The concept of user access to an existing integrated digital network (IDN) underlies the ISDN.
There are two ISDN standards which allow transfer of audio, video and data. ISDN-BRI which is 144,000 bits per second (bps) designed for the desktop and ISDN-PRI North America at 1,544,000 bps and ISDN-PRI Europe at 2,048,000 bps. Standard telephone lines can only use a portion of the transfer rate afforded by the ISDN standard.
ISDN combines voice and digital network services in a single medium, making it possible to offer customers digital data services as well as voice connections through a single "wire". A network or collection of networks interconnected with routers. It also refers to the largest network of computers in the world "The Internet".
Communication protocol, offered by telephone companies, that permits telephone networks to carry data, voice, and other source traffic. ISDN data rates range from 128kbps to 2Mbps.
Offers integrated voice, data, image and video services over the digital telephone network at high speeds allowing users to process a wide range of applications using a single telephone line. ISDN is based on a series of internationally accepted telecommunications standards.
An international communication standard for sending voice, video, and data over phone lines. ISDN supports data transfer rates of 64 Kbps (64,000 bits per second) and is much faster than dial-up modem service. ()
A digital telecommunications line capable of carrying 128 kilobits per second.
Worldwide telecommunication service that will use digital transmission and switching technology to support voice and digital data communications. ISDN is being developed by telephone companies to serve all data communications needs of users.
ISDN A form of telephone connection in which digital signals are sent over existing copper telephone wires. Speeds vary considerably, but are always higher than traditional analogue telephone phone connections. Described in more detail in “Choosing your Telecom Options†in the How To Guides section of the CD.
An international communications transfer standard for sending voice, video, and data over digital telephone lines or normal telephone wires. ISDN supports data transfer rates of 64 Kbps (64,000 bits per second) and most telecommunications companies offer customers connection speeds of up to 128 Kbps.
A Network based on the existing digital Public Telephone Network which provides digital links to Customers and end to end digital connectivity between them.
A worldwide digital communications network with faster, more varied capabilities than existing analog telephone systems. ISDN, for example, can carry up to 24 voice and data channels over the same connection.
A telecommunications system which uses technologies to change voice, data and video transmissions into digital signals for high-speed transmission over existing or new telephone networks.
a fast phone line that significantly increases the rate at which you can receive and transmit information
A telecommunications service that links you directly to the telephone company's digital network. With ISDN, your access line is fully digital. In other words, ISDN provides a completely digital link making possible the simultaneous, high-speed transmission of voice, data, still image and video signals over a single telephone line.
An all digital service that can incorporate voice, data on a single service facility. ISDN to homes and small businesses are known as basic rate services. (ISDN-BRI) and businesses requiring higher bandwidth will utilize primary rate (ISDN-PRI).
A public-switched network providing digital connections for the concurrent transmission of voice, video, data, and images. Often seen as a technological bridge between the current telephone system and an upgraded, broadband network.
An alternative method to simultaneously carry voice, data and other traffic, using the switched telephone network.
Integrated Services Digital Network refers to a completely digital telephone network in which voice and high speed data can be transmitted simultaneously.
a network evolved from the digital PSTN which provides digital exchange lines to customers and 64kbps end to end digital connectivity between them. Two or more 64kbps connections can be combined to provide a higher speed connection, eg 128kbps.
Digital telephony scheme that allows a user to connect to the Internet over standard phone lines at speeds higher than a 56K modem allows. Capable of speeds from 57.6 K to 128 K.
This is a set of standards for using telephones to carry data and voice information. Users, accessing existing telephone lines, can transmit and receive digital signals. These lines have high bandwidth and allow users to use a single line for both speech and data at the same time.
A set of communication standards for voice, digital network services and video. It has been designed to eventually replace the current phone system, known as PSTN ( Public Switched Telephone Network) or POTS ( Plain Ole Telephone Service). ISDN is known as a circuit switched data network. ISO
A type of phone line used to enhance WAN speeds. ISDN lines can transmit at speeds of 64 or 128 kilobits per second, as opposed to standard phone lines, which typically transmit at 28.8 kilobits per second. An ISDN line must be installed by the phone company at both the server site and the remote site. See also wide area network (WAN).
A relatively new technology which combines voice and digital network services in a single medium. ISDN makes it possible for communications carriers to offer their customers digital data services as well as voice connections through a single line. CCITT defines the standards relating to ISDN.
An advanced, high-capacity landline technology used for high-speed data transfer.
Large bandwidth telephone line. Allows you to transfer information quickly. Java A programming language that allows Web servers to distribute small programs temporarily. These programs (see "Applets") usually perform simple tasks within the Web browser.
A digital telecommunications channel that allows for the integrated transmission of voice, video, and data; a protocol for high speed digital transmission. Simultaneous copper wire transmission of voice, images and data. No modem required for data. These networks consolidate voice and data facilities and provide a connection to a universal network, thus allowing the user to transmit any type of information, including full motion video to any other location on the network.
Digital telephone network allowing faster data speeds
a network based on the existing digital PSTN which provides digital links to customers and end to end digital connectivity between them. ISDN provides a maximum bandwidth of 128kbps.
The CCNT (Comité Consultatif International de Télégraphie et Téléphonie) standard that defines a digital communications network. Among other things, ISDN provides superior dial up connections for transferring information between computers and connecting to the Internet, because it supports data transfer rates of 128 kilobits per second (Kbps), compared with 14,4 Kbps and 28,8 Kbps for the fastest modems. It also permits voice and data signals to share the same phone line.
A network that provides end-to-end digital connectivity to support a wide range of voice and data services.
A high-speed digital network capable of moving large computer files at speeds of a megabyte a minute or higher.
Integrated Services Digital Network (ISDN) combines digital network services and voice into one. Users can access digital services at 115,200 bps.
(ISDN) A set of communications standards allowing a single wire or optical fibre to carry voice, digital network services and video. ISDN is intended to eventually replace the plain old telephone system.
A digital protocol developed to bring standardization to the transmission of "dial-up" data services. ISDN is a media-rich protocol which allows the simultaneous transmission of voice, data and video through the same channel. It is available in two basic configurations: BRI (Basic Rate Interface)(2B+D) comprised of two 64 Kbs data channels and a 16 Kbs signaling channel, and PRI (Primary Rate Interface)(23B+D) comprised of 23 64 Kbs data channels and a 64 Kbs signaling channel. A PRI is the rough equivalent of a T1 circuit. However, a T1 offers 24 56 Kbs channels (8 Kb of EACH channel is used for signaling overhead).
A high speed Internet connection available via digital or regular telephone lines. Integrated Services Digital Network (ISDN) offers higher bandwidth than modems, but lower bandwidth than DSL or T1 Internet connections.
An information transfer standard for transmitting digital voice and data over telephone lines at speeds up to 128Kbps.
An integrated digital network in which a single wire or optical fibre is used to carry both voice and data. ISDN has a high data transfer rate (64 kilobits per second) compared to a standard landline (33.2 kilobits per second).
Standard digital service capability that includes one or more circuit-switched communication channels capable of carrying digital voice, data, or image signals, a packet-switched channel for out-of-band signaling and control, plus a collection of standard and optional features that support information productivity for the user providing higher-speed Internet access than analog systems.
A digital line that is often used to connect to the Internet. It generally comes in two flavors: one is a 56Kbps version, which in actuality only uses...
A set of standards that govern access to digital transmission networks. Two standard interfaces have been defined. One is called the basic rate interface, and provides for two 64 Kbps channels ("B" channels) that can carry either data or digital voice, and a 16 Kbps D channel for signaling and management. The other interface is called the primary rate interface, and consists of twenty-three 64 Kbps B channels (30 in Europe) that can carry either data or digital voice, and a 64 Kbps D channel for signaling and management.
A telecommunications standard allowing communications channels to carry voice, video, and data simultaneously.
A form of telecommunications network capable of carrying both voice (telephone) and data traffic.
A technology offered by the telephone carriers of the world. ISDN combines voice and digital network services in a single medium, making it possible to offer customers (dial-up narrowband) digital data services as well as voice connections through a single wire. The standards that define ISDN are specified by CCITT. See also: DSL, CCITT.
An integrated digital network in which the same digital switches and digital paths are used to establish connections for different services, for example, telephony, data.
This is a completely digital telecommunications network access method that works over copper wires. It involves two types of ISDN, first, the basic rate and second, the primary rate. The basic rate ISDN provides the subscriber with two 64 kbps channels of information and then a single 16 kbps channel for control. The primary rate provides the user with thirty 64 kbps channels of information and alse a 64 kbps control channel.
Switched network providing end-to-end digital connectivity for the simultaneous transmission of voice, data, video, imaging and fax over several multiplexed communications channels. Employees high-speed, out-of-band signaling protocols that conform to international standards. Signaling and communications are separate, therefore, reduces network blockage and provides faster connectivity for users.
An all digital network which may carry both voice and data and is usually leased in bundles of 30 trunks.
switched network service providing end-to-end digital connectivity over standard phone lines for the transmission of voice and data. Two levels of service include Basic Rate Interface, a digital line with two 64 kbps voice/data channels and one 16 kbps signaling channel (2B+D), or Primary Rate Interface, a digital trunk with twenty three (23) 64 kbps voice/data channels and one (1) 64 kbps signaling channel (23 B+D).
(ISDN): An ISDN line is a digital phone line that can transmit data, video, and voice. (ISDN lines are "point-to-point" connections from the telephone company to the computer user.)
Series of CCITT Recommendations related to the transmission of voice and data down the same line.
An international communications standard for sending voice, video, and data over digital telephone lines or normal telephone wires. ISDN supports data transfer rates of 64 Kbps (64,000 bits per second). Most ISDN lines offered by telephone companies give you two lines at once, called B channels. You can use one line for voice and the other for data, or you can use both lines for data to give you data rates of 128 Kbps, three times the data rate provided by today's fastest modems.
Integrated voice and data network based on digital communications technology and standards interfaces.
A technology offered by telephone carriers that allows for the rapid transfer of voice and data. Note: Use of ISDN requires an IDSN modem at customer's premises.
A high performance, digital phone circuit available from most regional telephone companies that allows for voice and data to be transmitted on the same line, producing extremely fast, noise-free connections.
An emerging technology that is beginning to be offered by the telephone carriers of the world.ISDN combines voice and digital network services in a single medium, making it possible to offer customers digital data services as well as voice connections through a single "wire." The standards that define ISDN are specified by CCITT If you are interested in finding out whether ISDN is available in your area, you may need to contact a local university or other large Internet site, or ask for the data marketing division at your local phone company. Many residential marketing customer agents at local phone companies are not fully briefed on ISDN. International Organization for Standardization (ISO) A voluntary, nontreaty organization founded in 1946, which is responsible for creating international standards in many areas, including computers and communications. Its members are the national standards organizations of the 89 member countries, including ANSI for the U.S. See also Open Systems Interconnection. WWWebfx Home Page
Digital network with higher speed than found on the traditional telephone network. Even though ISDN uses existing phone lines, it does require specialized equipment. Because the network is all digital it can easily send voice, data, and video over the same line simultaneously.
A circuit-switched communication network, closely associated with the public switched telephone network that allows dial-up digital communication at speeds up to 128 kilobits per second.
A method of data transfer over digital or regular telephone lines similar to standard modems except faster. ISDN is available in most areas of the United States. In most markets it is priced very comparably to standard analog phone circuits. It can provide speeds of roughly 128 Kbps bits-per-second over regular phone lines. In practice, most people are limited to 56 or 64 Kbps. Unlike DSL, ISDN can connect many different locations, one at a time, just like a regular telephone call, as long the other location also has ISDN.
See ISDN.
The recommendation published by CCITT for private or public digital telephone networks where binary data, such as graphics and digitized voice and data transmission, pass over the same digital network that carries most telephone transmissions today.
This is a digital phone service that can be installed in a home or office. Before getting ISDN, you must confirm that you have the correct hardware and software. Also, check to see if you phone company and Internet Service Provider support the service.
An internationally agreed upon standard for digital telephone networks that will eventually replace today's analog telephone networks. ISDN-based networks will enable tremendous increases in the speed, quality, and capacity of transmission, while merging voice, image, and computerized data services. ISDN lines that allow for transmission and reception of computer data at 64 kilobits per second are now available for use by personal computer users, although at a premium. Linking a personal computer to an ISDN line requires the use of a special device popularly referred to as an "ISDN modem."
International standard which enables high speed simultaneous transmission of voice and/or data over an existing PSTN. Provides end-to-end digital connection for multiplexed communication channels. The most common ISDN system provides one data and two voice channels over a traditional copper wire pair, but can represent as many as 30 channels.
Digital, high-bandwidth lines that can deliver data over the Internet. Data travels at 128K bits per second.
A set of international standards for telephone transmission. ISDN provides an end-to-end digital network, out-of-band signaling, and greater bandwidth than older telephone services. The two standard levels of ISDN are Basic Rate Interface (BRI) and Primary Rate Interface (PRI). See Basic Rate Interface and Primary Rate Interface.
A public switched digital network that provides a wide variety of communications services and integrated access to the network
A faster digital phone service that operates at speeds as high as 128-256 kilobits per second.
An Internet connection that allows digital transmission over an ordinary telephone. By installing an ISDN adapter (instead of a modem) you can receive highly graphic web pages very quickly (up to 128 Kbps). ISDN requires adapters at both ends of the transmission so your Internet Service Provider also needs an ISDN adapter. ISDN is generally available from your phone company.
ISDN is a digital telephone line that can be used for voice, fax, and data communications like a regular telephone line, but can transport data five times faster (or more) than a 28.8Kbps V.34 modem and allow you to talk on the phone to one person while sending data to another.
network technology implemented through a digital telephone service providing high-speed integration of voice and data over special telephone lines. Uses Asynchronous Transfer Mode.
A technology offered by telephone carriers that allow for the rapid transfer of voice and data. By combining voice, fax and Internet into a digital stream, it can provide speeds of up to 128,000 bits-per-second over regular phone lines.
An emerging technology which is beginning to be offered by thetelephone carriers of the world. ISDN combines voice and digitalnetwork services in a single medium, making it possible to offercustomers digital data services as well as voice connectionsthrough a single "wire". The standards that define ISDN arespecified by CCITT. See also: CCITT.[Source: RFC1208] Interagency Interim National Research and Education Network (IINREN)
a digital connection to the telephone exchange. This allows for shorter dial-up times than analogue phone lines, and higher data transfer rates. See terminal adaptor.
High-speed transmission technology that provides two 64,000 bits per second channels and a third, lower-speed channel that can handle voice and data transmission simultaneously.
A digital communication service offered by telephone carriers. ISDN combines voice connection and digital data services in a single medium ( Computer Networks - A Systems Approach, Larry Peterson & Bruce Davie, Morgan Kaufman, 1996) See also Local Area Network, Wide Area Network.
A high-bandwidth communications service, ISDN combines voice and digital services over a single medium, enabling telephone lines to handle both on a single wire. ISDN permits connections upto 128Kbps. ISDN requires a special adapter for your computer. An ISDN connection is available in most areas of the United States for a reasonable cost, unless you live in New Mexico.
Emerging international standard for using public phone lines to transmit voice and data over the same line.
A set of standards for the transmission of digital data over telecommunications networks. An extension of the integrated digital network used for telephony, ISDN is designed to meet the increasing demands for the simultaneous communication of interactive data, images, video and audio services, as well as the spoken word. ISDN is rapidly becoming available to much of the USA, and, in most markets, it is priced very comparably to standard analog phone circuits. It can provide speeds of roughly 128,000 bits-per-second over regular phone lines. In practice, most people will be limited to 56,000 or 64,000 bits-per-second.
Integrated Services Digital Network (ISDN) is a circuit-switched telephone network system, designed to allow digital transmission of voice and data over ordinary telephone copper wires, resulting in better quality and higher speeds than that available with the PSTN system. More broadly, ISDN is a set of protocols for establishing and breaking circuit switched connections, and for advanced call features for the user.
A point-to-point signaling protocol designed to interface PBX equipment with central office switches.
The first technology developed using a DSL protocol.