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Automatic Callback
In telecommunication, an automatic callback is a computer telephony calling feature that permits a user, when encountering a busy condition or other condition where the called individual is unavailable, to instruct the system to retain the called number and to establish the call when there is an available line or when the called number is no longer busy. Automatic callback may be implemented in the terminal, in the telephone exchange, or shared between them. Automatic callback is not the same as camp-on. Using callback on popular business telephone systems Comdial Digitech, DSU, Impact Place an intercom call and press CAMP. Your phone will disconnect from the attempted call. When the phone you rang is available, your phone will ring with five ring bursts. Press intercom to ring the other phone. To use with calls made in the voice-announce mode, press intercom before the camp button. To cancel, press intercom and dial "#6". Comdial ExecuTech System 2000 Make an intercom call. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunication
Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that feasible with the human voice, but with a similar scale of expediency; thus, slow systems (such as postal mail) are excluded from the field. The transmission media in telecommunication have evolved through numerous stages of technology, from beacons and other visual signals (such as smoke signals, semaphore telegraphs, signal flags, and optical heliographs), to electrical cable and electromagnetic radiation, including light. Such transmission paths are often divided into communication channels, which afford the advantages of multiplexing multiple concurrent communication sessions. ''Telecommunication'' is often used in its plural form. Other examples of pre-modern long-distance communication included audio messages, such as coded drumb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Telephony
Computer telephony integration, also called computer–telephone integration or CTI, is a common name for any technology that allows interactions on a telephone and a computer to be coordinated. The term is predominantly used to describe desktop-based interaction for helping users be more efficient, though it can also refer to server-based functionality such as automatic call routing. Common functions By application type CTI applications tend to run on either a user's desktop, or an unattended server. ;Common desktop functions provided by CTI applications * Screen popping - Call information display (caller's number (ANI), number dialed (DNIS), and Screen pop on answer, with or without using calling line data. Generally this is used to search a business application for the caller's details. *Dialing - Automatic dialing and computer-controlled dialing (power dial, preview dial, and predictive dial). *Phone control - Includes call control (answer, hang up, hold, conference, etc.) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calling Feature
A vertical service code (VSC) is a sequence of digits and the signals star (*) and number sign (#) dialed on a telephone keypad or rotary dial to enable or disable certain telephone service features. Some vertical service codes require dialing of a telephone number after the code sequence. On a touch tone telephone, the codes are usually initiated with the star key, resulting in the commonly used name ''star codes''. On rotary dial telephones, the star is replaced by dialing ''11''. In North American telephony, VSCs were developed by AT&T Corp. as Custom Local Area Signaling Services (CLASS or LASS) codes in the 1960s and 70s. Their use became ubiquitous throughout the 1990s and eventually became a recognized standard. As ''CLASS'' was an AT&T trademark, the term ''vertical service code'' was adopted by the North American Numbering Plan Administration. The use of ''vertical'' is a somewhat dated reference to older switching methods and the fact that these services can only be ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
User (telecommunications)
In telecommunications, a user is a person, organization, or other entity that employs the services provided by a telecommunication system, or by an information processing system, for transfer of information. A user functions as a source or final destination of user information, or both. A user ''may'' also be the subscriber, i.e. the customer paying for the service. User is also a person or process accessing an AIS by direct connections (e.g., via terminals) or indirect connections. "Indirect connection" relates to persons who prepare input data or receive output that is not reviewed for content or classification by a responsible individual. Sources * {{FS1037C MS188 * National Information Systems Security Glossary See also * User (computing) A user is a person who utilizes a computer or network service. A user often has a user account and is identified to the system by a username (or user name). Other terms for username include login name, screenname (or screen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terminal (telecommunication)
In the context of telecommunications, a terminal is a device which ends a telecommunications link and is the point at which a signal enters or leaves a network. Examples of terminal equipment include telephones, fax machines, computer terminals, printers and workstations. An end instrument is a piece of equipment connected to the wires at the end of a telecommunications link. In telephony, this is usually a telephone connected to a local loop. End instruments that relate to data terminal equipment include printers, computers, barcode readers, automated teller machines (ATMs) and the console ports of routers. See also * Communication endpoint * Data terminal equipment * End system * Host (network) * Node (networking) * Terminal equipment In telecommunication, the term terminal equipment has the following meanings: * Communications equipment at either end of a communications link, used to permit the stations involved to accomplish the mission for which the link was estab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telephone Exchange
A telephone exchange, telephone switch, or central office is a telecommunications system used in the public switched telephone network (PSTN) or in large enterprises. It interconnects telephone subscriber lines or virtual circuits of digital systems to establish telephone calls between subscribers. In historical perspective, telecommunication terms have been used with different semantics over time. The term ''telephone exchange'' is often used synonymously with ''central office'', a Bell System term. Often, a ''central office'' is defined as a building used to house the inside plant equipment of potentially several telephone exchanges, each serving a certain geographical area. Such an area has also been referred to as the exchange or exchange area. In North America, a central office location may also be identified as a ''wire center'', designating a facility to which a telephone is connected and obtains dial tone. For business and billing purposes, telecommunication carriers defi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Last-call Return
Last-call return, automatic recall, or (on PBX and centrex service) camp-on, is a telecommunication feature offered by telephony service providers to subscribers to provide the subscriber with the telephone number, and sometimes the time, of the last caller. The service may also offer the facility to place a call to the calling party. The general public tends to refer to the service by the telephone feature code, the telephone number it has in their country; for example, in North America, this is ''*69'', while in the UK, it is called ''1471''. ''The New York Times'' described Call Return in 1992 as a new service. It can be paid for per-call or subscribed to monthly. Feature code The number for this facility varies with country and provider: * United States and Canada: Vertical service code *69; 1169 on rotary phone/pulse dial telephones. The prompt voice behind most U.S. AT&T implementations of this feature is Pat Fleet. Where available, it is offered on a per-call charge ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Standard 1037C
Federal Standard 1037C, titled Telecommunications: Glossary of Telecommunication Terms, is a United States Federal Standard issued by the General Services Administration pursuant to the Federal Property and Administrative Services Act of 1949, as amended. This document provides federal departments and agencies a comprehensive source of definitions of terms used in telecommunications and directly related fields by international and U.S. government telecommunications specialists. As a publication of the U.S. government, prepared by an agency of the U.S. government, it appears to be mostly available as a public domain resource, but a few items are derived from copyrighted sources: where this is the case, there is an attribution to the source. This standard was superseded in 2001 by American National Standard T1.523-2001, Telecom Glossary 2000, which is published by ATIS. The old standard is still frequently used, because the new standard is protected by copyright, as usual for A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comdial
Comdial Corporation was a telecommunications company based in Sarasota, Florida and was headquartered in a former Lockheed plant building shared with L3 Communications. Because of the history of manufacturing at the facility, the grounds surrounding the site has been the subject of claims of environmental contamination, namely underground toxic chemicals. Comdial was founded in Oregon in 1977 as a telecommunications research firm. On October 1, 1982 it acquired the telephone manufacturing division of General Dynamics for $53.7 million, gaining the company a major product design and manufacturing operation located in Charlottesville, Virginia. Comdial was a former manufacturer and designer of telecommunication systems. Some of Comdial's more popular discontinued products include the DSU and DSUII, the Concierge (marketed to hotel/motels), FXT/S, Unisyn, and the Comdial Digitech and Executech systems. Comdial sold most of their systems through wholesalers in the US such as Graybar El ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Busy Signal
Reanno Devon Gordon (born 24 January 1979), better known by his stage name Busy Signal, is a Jamaican dancehall reggae artist. Biography Reanno Devon Gordon p/k/a Busy Signal was born in Saint Ann Parish,Johnson, Carolyn (2006)A Very Busy Childhood", ''Jamaica Star'', 21 January 2006, retrieved 1 July 2012 living in areas in West and East Kingston such as Tivoli Gardens, Papine, and Spanish Town. He is a past student of Brown's Town Comprehensive High School. Known as one of the artists leading the contemporary dancehall movement, Busy Signal has been a large part of the scene since 2003, and released his debut single "Step Out" in 2005. A music video for "Step Out" was released shortly afterwards. He was nicknamed Busy Signal by his friends because he is constantly busy. His hit tracks for 2007/2008 were "Nah Go A Jail Again", "Smoke Some High Grade", "Tic Toc" and the track entitled "Unknown Number" has made tremendous airplay and dancehall reviews especially in the Caribbe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Redial
In telecommunication, an automatic redial is a service feature that allows the user to dial, by depressing a single key or a few keys, the most recent telephone number dialed at that instrument. ''Note:'' Automatic redial is often associated with the telephone A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into e ... instrument, but may be provided by a PBX, or by the central office. ''Synonym'' ''last number redial.'' ''Contrast with'' automatic calling unit. Often one must subscribe to a caller ID for use of this function on a landline. References {{telephony-stub Calling features Telecommunications ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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