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Leased line

Index Leased line

A leased line is a private bidirectional or symmetric telecommunications circuit between two or more locations provided in exchange for a monthly rent. [1]

65 relations: Asymmetric digital subscriber line, Asynchronous transfer mode, Backbone network, Bidirectionalization, Business telephone system, Carrier Ethernet, Channel service unit, Channelization (telecommunications), Circuit ID, Communications in Hong Kong, Communications in the United States, CSU/DSU, Dark fibre, Data service unit, Data transmission, DECnet, Dedicated line, Dial plan, Digital Signal 0, Digital Signal 1, Digital subscriber line, Dot-com bubble, Dry loop, Duplex (telecommunications), E-carrier, Ethernet over twisted pair, Extranet, Frame Relay, G.703, IBM Systems Network Architecture, Integrated Services Digital Network, Internet, Internet access, Internet protocol suite, Internet service provider, Leasehold estate, List of ITU-T V-series recommendations, Mainframe computer, Metro Ethernet, Metropolitan area network, Multiplexing, Multiprotocol Label Switching, Network layer, Network planning and design, Network termination, Packet switching, Plain old telephone service, Point of presence, Private line, Public switched telephone network, ..., Ringdown, Router (computing), Symmetric digital subscriber line, Telecommunication circuit, Telecommunications in India, Telecommunications in Italy, Telecommunications in the United Kingdom, Telephone, Telephone company, Telephone number, Tie line, Time-division multiple access, Time-division multiplexing, Virtual private network, X.21. Expand index (15 more) »

Asymmetric digital subscriber line

Asymmetric digital subscriber line (ADSL) is a type of digital subscriber line (DSL) technology, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide.

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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".

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Backbone network

A backbone is a part of computer network that interconnects various pieces of network, providing a path for the exchange of information between different LANs or subnetworks.

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Bidirectionalization

In computer science, bidirectionalization refers to the process of given a source-to-view transformation (automatically) finding a mapping from the original source and an updated view to an updated source.

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Business telephone system

A business telephone system is a multiline telephone system typically used in business environments, encompassing systems ranging from small key telephone systems to large-scale private branch exchanges.

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Carrier Ethernet

Carrier Ethernet is a marketing term for extensions to Ethernet to enable telecommunications network providers to provide Ethernet services to customers and to utilize Ethernet technology in their networks.

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Channel service unit

In telecommunications, a channel service unit (CSU) is a line Bridging device for use with T-carrier that.

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Channelization (telecommunications)

Channelized in a telecommunications environment means that the line that communications have been transmitted over contains more than one message thread, separated in some fashion.

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Circuit ID

A circuit ID is a company-specific identifier assigned to a data or voice network between two locations, usually local telephone exchanges.

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Communications in Hong Kong

Communications in Hong Kong includes a wide-ranging and sophisticated network of radio, television, telephone, Internet, and related online services, reflecting Hong Kong's thriving commerce and international importance.

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Communications in the United States

The primary regulator of communications in the United States is the Federal Communications Commission.

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CSU/DSU

A CSU/DSU (Channel Service Unit/Data Service Unit) is a digital-interface device used to connect data terminal equipment (DTE), such as a router, to a digital circuit, such as a Digital Signal 1 (DS1) T1 line.

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Dark fibre

A dark fibre or unlit fibre is an unused optical fibre, available for use in fibre-optic communication.

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Data service unit

A data service unit, sometimes called a digital service unit, is a piece of telecommunications circuit terminating equipment that transforms digital data between telephone company lines and local equipment.

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Data transmission

Data transmission (also data communication or digital communications) is the transfer of data (a digital bitstream or a digitized analog signal) over a point-to-point or point-to-multipoint communication channel.

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DECnet

DECnet is a suite of network protocols created by Digital Equipment Corporation.

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Dedicated line

In computer networks and telecommunications, a dedicated line is a communications cable or other facility dedicated to a specific application, in contrast with a shared resource such as the telephone network or the Internet.

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Dial plan

A dialing plan establishes the permitted sequences of digits dialed on subscriber or station lines with subscriber premises equipment, such as telephones and private branch exchange (PBX) systems.

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Digital Signal 0

Digital Signal 0 (DS0) is a basic digital signaling rate of 64 kilobits per second (kbit/s), corresponding to the capacity of one analog voice-frequency-equivalent communication channel.

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Digital Signal 1

Digital Signal 1 (DS1, sometimes DS-1) is a T-carrier signaling scheme devised by Bell Labs.

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Digital subscriber line

Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines.

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Dot-com bubble

The dot-com bubble (also known as the dot-com boom, the dot-com crash, the Y2K crash, the Y2K bubble, the tech bubble, the Internet bubble, the dot-com collapse, and the information technology bubble) was a historic economic bubble and period of excessive speculation that occurred roughly from 1997 to 2001, a period of extreme growth in the usage and adaptation of the Internet.

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Dry loop

A dry loop is an unconditioned leased pair of telephone line from a telephone company.

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Duplex (telecommunications)

A duplex communication system is a point-to-point system composed of two or more connected parties or devices that can communicate with one another in both directions.

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E-carrier

The E-carrier is a member of the series of carrier systems developed for digital transmission of many simultaneous telephone calls by time-division multiplexing.

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Ethernet over twisted pair

Ethernet over twisted pair technologies use twisted-pair cables for the physical layer of an Ethernet computer network.

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Extranet

An extranet is a controlled private network that allows access to partners, vendors and suppliers or an authorized set of customers – normally to a subset of the information accessible from an organization's intranet.

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Frame Relay

Frame Relay is a standardized wide area network technology that specifies the physical and data link layers of digital telecommunications channels using a packet switching methodology.

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G.703

G.703 is a 2016 ITU-T standard for transmitting voice or data over digital carriers such as T1 and E1.

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IBM Systems Network Architecture

Systems Network Architecture (SNA) is IBM's proprietary networking architecture, created in 1974.

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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.

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Internet

The Internet is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide.

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Internet access

Internet access is the ability of individuals and organizations to connect to the Internet using computer terminals, computers, and other devices; and to access services such as email and the World Wide Web.

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Internet protocol suite

The Internet protocol suite is the conceptual model and set of communications protocols used on the Internet and similar computer networks.

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Internet service provider

An Internet service provider (ISP) is an organization that provides services for accessing, using, or participating in the Internet.

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Leasehold estate

A leasehold estate is an ownership of a temporary right to hold land or property in which a lessee or a tenant holds rights of real property by some form of title from a lessor or landlord.

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List of ITU-T V-series recommendations

The ITU-T V-Series Recommendations on Data communication over the telephone network specify the protocols that govern approved modem communication standards and interfaces.

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Mainframe computer

Mainframe computers (colloquially referred to as "big iron") are computers used primarily by large organizations for critical applications; bulk data processing, such as census, industry and consumer statistics, enterprise resource planning; and transaction processing.

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Metro Ethernet

A metropolitan-area Ethernet, Ethernet MAN, or metro Ethernet network is a metropolitan area network (MAN) that is based on Ethernet standards.

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Metropolitan area network

A metropolitan area network (MAN) is a that interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network (LAN) but smaller than the area covered by a wide area network (WAN).

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Multiplexing

In telecommunications and computer networks, multiplexing (sometimes contracted to muxing) is a method by which multiple analog or digital signals are combined into one signal over a shared medium.

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Multiprotocol Label Switching

Multiprotocol Label Switching (MPLS) is a type of data-carrying technique for high-performance telecommunications networks. MPLS directs data from one network node to the next based on short path labels rather than long network addresses, avoiding complex lookups in a routing table.

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Network layer

In the seven-layer OSI model of computer networking, the network layer is layer 3.

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Network planning and design

Network planning and design is an iterative process, encompassing topological design, network-synthesis, and network-realization, and is aimed at ensuring that a new telecommunications network or service meets the needs of the subscriber and operator.

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Network termination

A network termination (NT) (also NTE for network termination equipment) is a device that connects the customer's data or telephone equipment to a carrier's line that comes into a building or an office.

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Packet switching

Packet switching is a method of grouping data which is transmitted over a digital network into packets which are made of a header and a payload.

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Plain old telephone service

Plain old telephone service or plain ordinary telephone service (POTS) is a retronym for voice-grade telephone service employing analog signal transmission over copper loops.

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Point of presence

A point of presence (PoP) is an artificial demarcation point or interface point between communicating entities.

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Private line

In wired telephony, a private line or tie line is a service that involves dedicated circuits, private switching arrangements, and/or predefined transmission paths, whether virtual or physical, which provide communications between specific locations.

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Public switched telephone network

The public switched telephone network (PSTN) is the aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telephony operators, providing infrastructure and services for public telecommunication.

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Ringdown

In telephony, ringdown is a method of signaling an operator in which telephone ringing current is sent over the line to operate a lamp or cause the operation of a self-locking relay known as a drop.

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Router (computing)

A router is a networking device that forwards data packets between computer networks.

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Symmetric digital subscriber line

A symmetric digital subscriber line (SDSL) is a digital subscriber line (DSL) that transmits digital data over the copper wires of the telephone network, where the bandwidth in the downstream direction, from the network to the subscriber, is identical to the bandwidth in the upstream direction, from the subscriber to the network.

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Telecommunication circuit

A telecommunication circuit is any line, conductor, or other conduit by which information is transmitted.

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Telecommunications in India

India's telecommunication network is the second largest in the world by number of telephone users (both fixed and mobile phone) with 1.206 billion subscribers as on 31 March 2018.

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Telecommunications in Italy

Telephones - main lines in use: 20.031 million (2008) Telephones - mobile cellular: 88.58 million (2008) Telephone system: modern, well-developed, fast; fully automated telephone, telex, and data services domestic: high-capacity cable and microwave radio relay trunks international: satellite earth stations - 3 Intelsat (with a total of 5 antennas - 3 for Atlantic Ocean and 2 for Indian Ocean), 1 Inmarsat (Atlantic Ocean region), and NA Eutelsat; 21 submarine cables.

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Telecommunications in the United Kingdom

Telecommunications in the United Kingdom have evolved from the early days of the telegraph to modern broadband and mobile phone networks with Internet services.

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Telephone

A telephone, or phone, is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly.

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Telephone company

A telephone company, also known as a telco, telephone service provider, or telecommunications operator, is a kind of communications service provider (CSP) (more precisely a telecommunications service provider or TSP) that provides telecommunications services such as telephony and data communications access.

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Telephone number

A telephone number is a sequence of digits assigned to a fixed-line telephone subscriber station connected to a telephone line or to a wireless electronic telephony device, such as a radio telephone or a mobile telephone, or to other devices for data transmission via the public switched telephone network (PSTN) or other private networks.

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Tie line

A tie line, also known as a tie trunk, is a telecommunication circuit between two telephone exchanges or two extensions of a private telephone system.

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Time-division multiple access

Time-division multiple access (TDMA) is a channel access method for shared-medium networks.

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Time-division multiplexing

Time-division multiplexing (TDM) is a method of transmitting and receiving independent signals over a common signal path by means of synchronized switches at each end of the transmission line so that each signal appears on the line only a fraction of time in an alternating pattern.

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Virtual private network

A virtual private network (VPN) extends a private network across a public network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.

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X.21

X.21 (sometimes referred to as X21) is an interface specification for differential communications introduced in the mid-1970s by the ITU-T. X.21 was first introduced as a means to provide a digital signaling interface for telecommunications between carriers and customers' equipment.

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Redirects here:

Dedicated circuit, FT1, Fractional T1, IPLC, International Private Leased Circuit, International private leased circuit, Leased lines, Private circuit.

References

[1] https://en.wikipedia.org/wiki/Leased_line

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