The DirectorSystem was a system which made it possible to call subscribers at other telephone exchange ... from any telephone in the London director area, this uniformity is an example of a linked numbering .... Implementation The Directorsystem was adopted by the General Post Office United Kingdom GPO as a solution for the reorganisation of the London telephone area which would use the existing expertise ... the City of London . Western Electric had proposed the Rotary system for London, a machine switching system developed by Bell Labs with many features in common with the Panel system, but with smaller switches. However, as the GPO had extensive experience of step by step switching, it favoured the Directorsystem which would have much in common with the existing non director exchanges, and which would be manufactured in Britain from the outset. The Directorsystem worked well for individual ... from 1927, starting with London, following the introduction of the automatic telephone exchange in the UK ... History 1927 BT Archives ref History Mechanics and organisation It involved a device the director ... in the city in modern parlance a director incorporated a register translator and a digit store. Directors ... to give the name a meaningful mnemonic . This was done by linking each number on the telephone Rotary ... Panel switch system for equipping cities, but its basic switching module the Panel was comparatively large and the system was for economic reasons far better suited to business than to residential areas. Director switching, by contrast, had much smaller switching modules with distributed control ... area with Strowger switch ing, but large installations were much more common in areas served by Director ... other than the first and last for the group in a different order. Crossbar common control system incorporate line hunting as a fundamental part of the design, but in the Rotary system as proposed for London the final selectors connectors could hunt over a maximum of twenty lines. Operation In the Director ... more details
Unreferenced date December 2009 The Advanced Mobile TelephoneSystem not to be confused with Advanced Mobile Phone System was a 0G method of radio communication, mainly used in Japanese portable radio systems. It, like its successor High Capacity Mobile TelephoneSystem HCMTS , operated on the 900 MHz band. Mobile telecommunications standards Category Mobile radio telephone systems Wireless stub ca Advanced Mobile TelephoneSystem es Advanced Mobile TelephoneSystem fa ... more details
Western Electric key telephone set A business telephonesystem is any of a range of a multiline telephone ... systems to large scale private branch. A business telephonesystem differs from simply using a telephone ... operated in a manner similar to the public telephonesystem, in that the calls were routed to the correct ... systems. Electronic shared control systems led quickly to the modern hybrid telephonesystem, as the features ... Telephone The modern key system now supports Session Initiation Protocol SIP , ISDN , analog handsets ... Fish, Fowl, or Neither? Quick, what s the difference between a key telephonesystem and a hybrid ... point on the branch. PBXs are differentiated from key telephonesystem key systems in that users of key ... smaller key telephonesystem key systems by the fact that external lines are not normally indicated ...? Article by Andrew Taub 2010 Telecommunications DEFAULTSORT Business TelephoneSystem Category ... in the system, and that such a system often provides additional features related to call handling. Business telephone systems are often broadly classified into key systems , hybrid systems , and private branch exchanges . A key system ref cite book last Muller first Nathan title Desktop Encyclopedia ... with central office telephone systems, and in larger or more complex systems, may rival a central office in capacity and features. Key systems Key was a Bell System Technical terminology term of art ... control key systems Image 18butt 1.gif thumb 200px A typical rotary dial key telephone the Western Electric eighteen button Call Director, manufactured from 1958 to the early 80s. Before the advent of Integrated ... composed of electromechanical components relay s as were larger telephone switching systems. The systems marketed in North America as the 1A, 6A, 1A1 and the 1A2 Key System ref cite web title 1A2 technology ... 1A2 Key System explanation url http www.kadiak.org tel 1a2.html accessdate 16 September 2010 ref were typical and sold for many decades. The 1A family of Western Electric Company WECo key telephone ... more details
Infobox Airport name United TelephoneSystem Heliport nativename nativename a nativename r image image width caption IATA ICAO FAA OR82 type Private owner Embarq United Telephone of the Northwest operator city served location Hood River, Oregon elevation f 100 elevation m 30 coordinates coord 45 42 47.4270 N 121 31 56.2630 W type airport display inline website metric elev metric rwy h1 number H1 h1 length f 70 h1 length m 21 h1 surface Asphalt Concrete stat year stat1 header stat1 data footnotes United TelephoneSystem Heliport Airport codes OR82 is a private heliport located 1 mile north of Hood River, Oregon Hood River in Hood River County, Oregon Hood River County , Oregon , United States USA . External links US airport minor OR82 Category Heliports in Oregon Category CenturyLink Category Buildings and structures in Hood River, Oregon Category Transportation in Hood River County, Oregon Oregon airport stub ... more details
cleanup date December 2008 Inmate Telephone Systems have been designed to provide a monitored method for inmate and detainees to safely maintain contact with their family and friends, while at the same time providing tools to the jail management staff that permit recording, monitoring and alerts of inmate telephone activities. ref cite book last Bell first William R. title Practical criminal investigations ... books.google.com books?id 3kCrR6CcG3UC&pg PA196 ref Ideally, telephone service for inmates allows ...&pg PA96 ref In 2007, HR 555 The Family Telephone Connection Protection Act of 2007 ref Congressman Bobby L. Rush HR 555 The Family Telephone Connection Protection Act of 2007 , 110th CONGRESS ... for inmate telephone calls. This Bill has brought about the defining of the actual costs of telephone services from jails and may result in a standardization of rates among inmate telephone providers sometime in 2009 or 2010. Part of the reason for the higher rates charged for inmate telephone calls is that most systems record all of the calls and store the recordings for up to five years. The system ... commissary system to allow transfer of funds for calling needs, international calling, regular ..., therefore requiring the systems to be funded by the inmates who use the system to place calls ... Mary authorlink Mary Francesca Bosworth title The U.S. federal prison system year 2002 publisher SAGE ... The future of inmate telephone and communication services will be the implementation of web based video ... Federal Communications Commission http www.atis.org tg2k ATIS Telecom Glossary http www.inmate telephone service.com Inmate Telephone Service Guide to inmate telephone systems, services and providers http www.inmate phone service.com Inmate Telephone Service Finding a jail phone provider http www.theincarcerate.com How to save big bucks on Inmate Calling DEFAULTSORT Inmate TelephoneSystem Category Telephone services Category Prison related organizations ... more details
unreferenced date January 2012 The Altai mobile telephonesystem is the pre cellular 0G radiotelephone service that was first introduced in the Soviet Union in 1963, and became available in the most large cities by 1965. It is a fully automated UHF VHF network that allows a mobile node to connect to a landline phone s, and was originally conceived to serve government officials and emergency services , but has since spread into general use, and is still in use in some places, where its advantages outweigh those of conventional cellular networks. Technical information From the technical standpoint Altai was fairly ordinary UHF VHF Trunked radio system trunked radio , but it was equipped with the automatic switching circuits on both mobile and static nodes that allowed the mobile end of the link to generate and transmit dialing signals and to connect the static end to the PSTN . Few initial installations used 150 MHz frequency, but as the network grew the later iterations switched to 330 MHz. Base stations have had up to 22 independent trunks of 8 channels each, and were commonly mounted together with the TV transmitters, sometimes even sharing the HF circuitry. This allowed for the good coverage as there generally was only one base station per city. See also Car phone Mobile radio telephone Improved Mobile Telephone Service , an American contemporary and counterpart of the Altai system Category Mobile telecommunications networks ru ... more details
The Minister responsible for the Manitoba TelephoneSystem is a former government position in Manitoba , Canada . It was not a full portfolio, but was invariably held by ministers with other Cabinet government cabinet responsibilities. The position was created in 1970, and discontinued in 1999. List of Ministers responsible for the Manitoba TelephoneSystem class wikitable bgcolor CCCCCC width 30 Name width 30 Party width 20 Took Office width 20 Left Office Canadian politics party colours NDP row Peter Burtniak br New Democratic Party of Manitoba New Democratic Party August 4, 1970 July 4, 1973 Canadian politics party colours NDP row Ian Turnbull politician Ian Turnbull br New Democratic Party of Manitoba New Democratic Party July 4, 1973 September 22, 1976 Canadian politics party colours NDP row Rene Toupin br New Democratic Party of Manitoba New Democratic Party September 22, 1976 October 24, 1977 Canadian politics party colours Progressive Conservatives row Harry Enns br Progressive Conservative Party of Manitoba Progressive Conservative November 15, 1979 January 16, 1981 Canadian politics party colours Progressive Conservatives row Donald Orchard br Progressive Conservative Party of Manitoba Progressive Conservative January 16, 1981 November 30, 1981 Canadian politics party colours NDP row Leonard Evans br New Democratic Party of Manitoba New Democratic Party November 30, 1981 August 20, 1982 Canadian politics party colours NDP row John Plohman br New Democratic Party of Manitoba New Democratic Party August 20, 1982 November 4, 1983 Canadian politics party colours NDP row Sam Uskiw br New Democratic Party of Manitoba New Democratic Party November 4, 1983 January ... for the Manitoba TelephoneSystem and Communications. Plohman, Uskiw and Mackling were designated as ministers responsible for the Manitoba TelephoneSystem Act. Sources http www.gov.mb.ca legislature ... Manitoba ministers Manitoba TelephoneSystem, Minister responsible for the ... more details
Menotti operas The Telephone, or L Amour trois is an English language comic opera in one act by Gian Carlo Menotti , both words and music. It was written for production by the Ballet Society and was first presented on a double bill with Menotti s The Medium at the Heckscher Theater, New York City, February 18 20, 1947. The Broadway theatre Broadway production took place on May 1, 1947, at the Ethel Barrymore Theatre . The Metropolitan Opera presented it once, on July 31, 1965. ref http www.ibdb.com production.asp?ID 1549 Internet Broadway Database The Telephone The Medium Production Credits Bot generated title ref Roles class wikitable Role Voice type Premiere Cast, February 18, 1947 br Conductor Jascha Zayde Lucy coloratura soprano Marilyn Cotlow Ben baritone Frank Rogier Synopsis Ben, bearing a gift, comes to visit Lucy at her apartment he wants to propose to her before he leaves on a trip. Despite his attempts to get her attention for sufficient time to ask his question, Lucy is occupied with interminable conversations on the telephone. Between her calls, when Lucy leaves the room, Ben even tries to cut the telephone cord unsuccessfully. Not wanting to miss his train, Ben leaves without asking Lucy for her hand in marriage. But Ben makes one last attempt He calls Lucy from a telephone booth outside on the street and makes his proposal. She consents, and the two join in a romantic duet over the phone line, at the end of which Lucy makes sure that Ben remembers her phone number. Recordings Film and video In 1968 a film of the opera was made for SFB ORF , in German. Anja Silja ... a performance of Francis Poulenc s La voix humaine , whose story also contains a telephone conversation. References reflist DEFAULTSORT Telephone, The Category Operas by Gian Carlo Menotti Category ... century operas Category Chamber operas de Das Telefon oder Die Liebe zu dritt es The Telephone, or L Amour trois it The Telephone, or L Amour trois pt The Telephone fi Puhelin ooppera ... more details
Director liquid crystal The Director, a complex artificial intelligence system used in Left 4 Dead HMS Director 1784 HMS Director 1784 Directortelephonesystem , or Director exchange Osama bin Laden , one of whose nicknames is The Director Aaron Director , a professor at the University of Chicago Law School Fibre Channel director , a large switch for computer storage networks See also Deputy Director disambiguation Directeur sportif disambiguation es Director he kk lb Regie mk ...wiktionary directorDirector may refer to TOCright Arts Director band , an Irish rock band from Malahide Film director Music director Music video director , a film director that specializes in supervising the filming and editing of music videos Sports director , an individual at a television or radio station who is in charge of the sports department Technical director , the most senior technical person within a theatrical company or television studio Television director , a person who directs the activities involved in making a television episode Theatre director Opera director Creative director ... of directors , a group of managers of a company Director general Executive director Finance director , or chief financial officer Funeral director , someone involved in the business of funeral rites Managing director Non executive directorDirector business may also be the title of a mid level management position Works Director album Director album , an album by Avant The Director film The Director film , an Australian film The Director , a novel by Henry Denker Other Director colonial , head of chartered company s colonial administration in a territory Director education , head of a university or other educational body Director military , a device that continuously calculates firing data Tournament director , for sporting events Adobe Director , multimedia authoring software Director string , a way of tracking free variables in computation. Director, the spatial and temporal average ... more details
about the Henry Denker novel Director disambiguation The Director ISBN 0 380 00669 3 is a novel by United States author Henry Denker , published in 1971. The novel is about an ambitious young film director, named Jock Finley, who uses two prominent film stars Carr and Daisy Donnel ostensibly based on John Wayne and Marilyn Monroe to rebuild his already damaged career. The novel is laced with sharp dialogue and explicit sex encounters in line with counterculture of 1970 s.The Underlying theme of the novel is clash of generations as of values. DEFAULTSORT Director, The Category 1971 novels Category 20th century American novels Category Novels about actors 1970s novel stub ... more details
Unreferenced stub auto yes date December 2009 Orphan date December 2009 An intercom telephone is a special kind of telephone that controls a school intercom system . With that telephone, the workers make the school announcements and can call each classroom s intercom by dialing the room number of that classroom. DEFAULTSORT Intercom Telephone Category Telecommunications equipment Telecommunications stub ... more details
Infobox Television show name Telephone Time image caption show name 2 genre Drama creator director developer presenter starring Frank C. Baxter Host voices narrated theme music composer Leon Klatzkin opentheme endtheme composer country USA language English num seasons 3 num episodes 29 list episodes executive producer Jerry Stagg br Hal Roach Jr. producer supervising producer asst producer co producer editor story editor location Hal Roach Studios , Culver City, California , USA camera runtime 30 mins. network Columbia Broadcasting System CBS 1956 br American Broadcasting Company ABC 1957 58 picture format 1.33 1 monochrome audio format monaural first run first aired April 8, 1956 last aired April 1, 1958 preceded by followed by related website Telephone Time is the title of a USA US TV drama series that aired from 1956 to 1958 featuring plays by John Nesbitt announcer John Nesbitt who hosted the first season. Frank C. Baxter hosted the 1957 and 1958 seasons. The program was directed by Arthur Hiller . The program showcased the talents of actors and actresses such as Joseph Cotten , Michael Landon , Johnny Crawford , Katherine Warren , Lon Chaney Jr. , Pamela Baird , Claudette Colbert , Strother Martin , Judy Morris , Ahna Capri , John Carradine , Helen Wallace , and Michael Winkelman . Famed circus performer Emmett Kelly made his dramatic debut in the presentation Captain from Kopenick . John Nesbitt was nominated for an Emmy Award in 1957 for Best Teleplay Writing Half Hour or Less. External links imdb title id 0048903 title Telephone Time http www.tv.com telephone time show 16546 summary.html?q telephone 20time TV.com Telephone Time Category American drama television series Category 1950s American television series Category 1956 television series debuts Category 1958 television series endings Category CBS network shows Category American Broadcasting Company network shows US tv prog stub ... more details
wiktionarypar telephone A Telephone , also called a phone , is a telecommunication device which is used to transmit and receive sound simultaneously. Telephone or phone may also refer to Telecommunications Camera phone , a mobile phone that is also able to capture either still photographs or video Cordless telephone , a telephone with a wireless handset that communicates via radio waves to its base station Mobile phone , a.k.a. a cell , cellphone or mobile is a wireless telecommunications device used for phone and data calls over a cellular network Radiotelephone , a.k.a. a radiophone a telephone that allows two or more people to talk via radio, often referring to an older radio telephonesystem that predated modern mobile cellular phones Softphone , a software program for making telephone calls over the Internet using computers Telephone application , a softphone telecommunication app for Mac OS X, by Alexei Kuznetsov Tin can telephone , a type of voice transmitting device usually made from two tin cans and string or wire Videophone , telephones with video displays, which enable their users to see each other as well in real time Social and cultural Chinese whispers a.k.a. Telephone , Broken Telephone , Le t l phone arabe , Wisper Down The Lane , or the Telephone Game , a children s game often played at parties or at a playground In music, film and the arts T l phone , a French rock band formed in 1976 Telephone song Telephone , a 2010 song by Lady Gaga and Beyonc Telefone Long Distance Love Affair , a 1983 song by Sheena Easton Telephone , a 1984 song by Diana Ross The Telephone Album , a 1998 album by the band Lotion Telefon film , a 1977 spy film directed by Don Siegel s A Telephonic Conversation Telephonic Conversation , an 1880 short story by Mark Twain Similar Speaking tube , a non electrical communication device using two cones connected by an air pipe. Users alternately ... homonymie ja krc nl Telefoon ru fi Telephone sv Telephone ... more details
, exchanges in the major cities with DirectortelephonesystemDirector installations were represented .... Prior to that time, only the Directortelephonesystemdirector areas Birmingham, Edinburgh, Glasgow ... in Central London the PABX was made an end node exchange in the London DirectortelephonesystemDirector area , with the code 432. The automanual board was given the extension number 1234 ...Globalize date September 2010 for the integer sequence Telephone number mathematics A telephone number or phone number is a sequence of digits used to call from one telephone line to another in a public switched telephone network . When telephone numbers were invented, they were short as few as one, two ... to encompass the world, telephone numbers have become longer. In addition to telephone ... necessary to identify uniquely the intended endpoint for the telephone call . Each such endpoint must have a unique number within the public switched telephone network . Most countries use ... length of the telephone number. It is also possible for each subscriber to have a set of shorter ... translated to unique telephone numbers before the call can be connected. Some special services ... 2 being the Emergency telephone number Emergency Services numbers for China, Japan, South Korea, Taiwan ... such as 550 1212 , which is the local number. Most telephone networks today are interconnected in the international telephone network, where the format of telephone numbers is standardized by ITU ... telephone exchange . ITU T recommendation E.123 describes how to represent an international telephone ... overseen by NeuStar Inc. . Before a telephone call is connected, the telephone number must be dial ... the call is answered. Business phones Business in mid 20th century and earlier had a single telephone number for the main telephone switchboard of that business. A switchboard operator would connect ... person in a business. Often, the DID number uses a pattern from the called party s telephone internal ... more details
For the Electric Light Orchestra song Telephone Line Electric Light Orchestra song globalize USA date December 2010 unreferenced date January 2008 Image Phone pole3.jpg thumb right Phone pole with phone and mainly electric lines File Fixed telephone lines per 100 inhabitants 1997 2007 ITU.png thumb Fixed telephone lines per 100 inhabitants 1997 2007 A telephone line or telephone circuit or just line or circuit Jargon within the industry is a single user telecommunication circuit circuit on a telephone telecommunication communication system. Typically this refers to the physical wire or other signaling medium connecting the user s telephone apparatus to the telecommunications network, and usually also implies a single telephone number for invoice billing purposes reserved for that user. In 1876 the earliest lines were single electrically conducting metal wires directly connecting one telephone to another with the Ground electricity Earth forming the Single wire earth return return circuit . Later in 1878 the Bell System Bell Telephone Company began to use two wire circuits called the local loop from each user s telephone to Telephone exchange end office s which performed any necessary ... telecom transmission on a carrier system . In most cases, two copper wires tip and ring for each telephone line run from a home or other small building to a local telephone exchange . There is a central junction box for the building where the wires that go to telephone jacks throughout the building ... upon the subscribed telephone service. The wires between the junction box and the exchange are known ... to two telephone lines at the local telephone exchange , thus making those jacks RJ11, RJ14, RJ25 RJ14 jacks. More often, only two of the wires are connected to the exchange as one telephone line ... english telematics telephone line.html Engineer Francesco Buffa s page about telephone line Is BS 6312 used in the UK ? DEFAULTSORT Telephone Line Category Local loop ar ca ... more details
Infobox Software name Telephone screenshot Image Telephone call.png 300px developer Alexei Kuznetsov released Start date 2008 12 17 latest release version 1.0.3 latest release date Start date and age 2012 02 29 programming language Objective C operating system Mac OS X size 2.0M language English, German, Russian license BSD License website http www.tlphn.com www.tlphn.com Telephone is a softphone for Mac OS X . It uses Session Initiation Protocol for communication. Telephone is distributed as free software under a variety of licenses. Audio codecs G.711 family codec PCMA, PCMU Speex 8000 narrowband , Speex 16000 wideband , and Speex 32000 ultra wideband iLBC GSM L16 family of codecs. External links http www.tlphn.com Telephone website http www.tlphn.com faq Telephone FAQ Category Free VoIP software network software stub ... more details
Infobox Defunct Company company name The Woodbury Telephone Company company logo Image with inadequate rationale removed Image AT&T logo horizontal .svg 150px AT&T logo fate Dissolved successor Southern New England Telephone foundation 1870 defunct 2007 location Woodbury, CT , United States U.S. industry Telecommunications key people products Plain old telephone service Local Telephone Service num employees parent Southern New England Telephone SNET 1997 2007 subsid The Woodbury Telephone Company was a telephone company serving Woodbury, Connecticut Woodbury , Southbury, Connecticut Southbury and Bethlehem, Connecticut . It is now owned by AT&T . Woodbury Telephone was acquired by Southern New England Telecommunications in 1997 ref http doddcenter.uconn.edu findaids SNET MSS19970122.html ref , approximately one year later SNET merged with SBC Communications . It continued as a separate operating company of Southern New England Telephone and at the time of its merger was the 75th largest independent telephone carrier in the United States. ref http articles.courant.com 1992 09 28 business 0000111966 1 local telephonetelephone companies woodbury telephone ref On June 1, 2007, the company was dissolved and merged all assets and operations into Southern New England Telephone . At the time of the merger the company had 19,000 lines. ref http articles.courant.com 1996 10 23 business 9610230018 1 snet woodbury s president woodbury telephone ref History Woodbury Telephone began operation ... Station via the telephone. The company grew modestly and was incorporated in 1910 with Arthur D ... to a direct dial system in 1955. As the service area grew considerably in the 1970s and 1980s ... introduced internet service with broadband access. Other historical notes Woodbury Telephone was the only local telephone operating company SBC AT&T owned that had no roots in the original AT&T or Alexander Graham Bell . There were five other independent telephone companies that served parts of Connecticut ... more details
num employees products Telephone Local Telephone Service revenue parent Bell Telephone Company American Bell 1883 1899 br American Telephone & Telegraph AT&T 1899 1983 bR Bell Atlantic Verizon 1984 ... DC The Chesapeake and Potomac Telephone Company , usually known as C&P Telephone , was a d b a name ... The Chesapeake and Potomac Telephone Company DC The Chesapeake and Potomac Telephone Company of Maryland The Chesapeake and Potomac Telephone Company of Virginia One company is owned by Frontier Communications Frontier West Virginia The Chesapeake and Potomac Telephone Company of West Virginia History The Chesapeake and Potomac Telephone Company DC The Chesapeake and Potomac Telephone Company was founded in June 1883. C&P Telephone Co. provided telephone service to Washington, D.C. In July 1969, Richard Nixon President Richard Nixon s telephone call to astronauts on the moon originated from C&P Telephone Co. equipment. The Chesapeake and Potomac Telephone Company of Maryland Image C&PMD.jpg thumb right C&P Tel. Co. of Maryland logo, 1964 1969 The C&P Telephone Company of Maryland was founded in 1884 as The Chesapeake and Potomac Telephone Company of Baltimore City . ref http www22.verizon.com ... and Potomac Telephone Company of Maryland on January 3, 1956, and the corporate name at this point changed to C&P Telephone of Maryland. ref http sdatcert3.resiusa.org UCC Charter DisplayEntity ... jobs in January 1943 due to labor shortages during World War II, but telephone operator positions remained ... and Potomac Telephone Company of Virginia Image C&PVA.jpg thumb right C&P Tel. Co. of Virginia logo, 1964 1969 The Chesapeake and Potomac Telephone Company of Virginia was founded in 1903. In 2010 ... shortened to C&P Telephone on marketing materials, bills, vehicles, etc. Image C&P Telephone.png thumb C&P Telephone logo, 1984 1994 In 1984, when the Bell System was divided into the Regional Bell operating company Regional Bell Operating Companies , or Baby Bells , the C&P Telephone companies became ... more details
Articles on Public telephone include Telephones Callbox Courtesy telephone Emergency telephone Payphone Police box Red telephone box Telephone booth Film Public Telephone film Public Telephone film , a 1980 French documentary film disambig ... more details
In telephone telephony , a call may be placed on hold , in which case the connection is not terminated but no verbal communication is possible until the call is removed from hold by the same or another extension on the key telephonesystem . Music on hold or On Hold Messaging may be played for the caller while the call is on hold, especially if the call has been placed to a customer service center. Alternatives to placing a caller on hold include virtual hold or virtual queuing solutions that allow scheduled or queue based callbacks to be made to the caller. Telecomm term stub Category Telephony ... more details
refimprove date March 2010 Image JT Switchboard 770x540.jpg thumb 250px A telephone operator manually connecting calls with cord pairs at a telephone switchboard. In the field of telecommunications , a telephone exchange or telephone switch is a system of electronic components that connects telephone ... Systemtelephone dials. Using the faster pulsing rate made trunk utilization more efficient because ... System 7 SS7 . Digital switches Image Pbx satellite telephone exchange 0a.jpg thumb 250px A typical ... s place in the systemTelephone switches are a small part of a large network. The majority of work ... layer. The layers are symmetric, because in a telephonesystem callers can also be callees. A time ... of telephone switches Pair gain system Full Availability, Limited Availability and Gradings Softswitch ... telephone switches, which make telephone call s work in the sense of making connections and relaying ... on individual telephone number s by local number portability due to customers porting a cancelled landline to a wireless . It is sometimes confused with the Telephone numbering plan Area code area code Telephone numbering plan Area code NPA , which covers multiple exchanges, and which an exchange ... thumb 250px Tivadar Pusk s , inventor of the telephone exchange. File HungarianTelekomMiskolc01.jpg thumb 250px Exchange in Miskolc, Hungary Prior to the telephone, electrical switches were used to switch telegraph lines. One of the first people to build a telephone exchange was Hungary Hungarian ... ref George W. Coy designed and built the first commercial telephone exchange which opened in New Haven ... the earliest telephone exchanges were based in London and Manchester , both of which opened under ... information and communications.htm toc 6 ref Belgium had its first International Bell Telephone ... hundred Telephone switchboard plug boards staffed by telephone operator s. Each operator sat in front ..., each of which was the local termination of a subscriber s telephone line . In front of the jack panel ... more details
of the telephone , which culminated in the 1888 decision of the United States Supreme Court upholding the priority of the patents belonging to Alexander Graham Bell . Those telephone patents were relied on by the Bell Telephone Company American Bell Telephone Company and the Bell System although they had ... were then opened to independent telephone companies to compete with the Bell System. In all, the American Bell Telephone Company and its successor, AT&T Corporation AT&T , litigated 587 court challenges ...Infobox SCOTUS case Litigants The Telephone Cases ArgueDate January 24 28, 31, February 1 4, 7 8 ArgueYear 1887 DecideDate March 19 DecideYear 1888 FullName Dolbear v. American Bell Telephone Company Molecular Telephone Company v. American Bell Telephone Company American Bell Telephone Company v. Molecular Telephone Company Clay Commercial Telephone Company v. American Bell Telephone Company People s Telephone Company v. American Bell Telephone Company Overland Telephone Company v. American Bell Telephone Company USVol 126 USPage 1 Citation Prior Subsequent Holding The Bell Company patent was valid ..., Blatchford Dissent Bradley JoinDissent Field, Harlan NotParticipating Gray, Lamar LawsApplied The Telephone ... a far larger and better financed competitor than American Bell Telephone. Western Union advocated ... telephone patents dating back to March 1876. Had Western Union succeeded it would have immediately destroyed the Bell Telephone Company and then Western Union stood to become the world s largest ... Telephone Company. ref name Billings In a lower court, the Peoples Telephone Company stock ... name Billings Billings, A. Bell and the Early Independents , Telephone Engineer and Management ... stage judgment. ref name Billings ref name ATCS Australasian Telephone Collecting Society. http www.telephonecollecting.org invent.htm Who Really Invented The Telephone? , ATCS, Moorebank, NSW, Australia ... the notable court cases involving the Bell Telephone Company , later renamed to the American Bell Telephone ... more details
within the area petitioned the Missouri Public Service Commission for Bell System Bell telephone service because they wanted dial telephone service. Mr. Kern made arrangements to rent some Stromberg ...Infobox Company company name K.L.M. Telephone Company company logo company type Private company Private ... employees products Telephone Local Telephone Service parent RBJ Corp. RBJ 1992 2007 br American Broadband 2007 present revenue homepage http www.klmtel.net K.L.M. Telephone Company is a rural telecommunications provider based in Rich Hill, Missouri . Consisting mainly of small, rural, family run telephone companies it absorbed, it provides local telephone service to 1400 southwest Missouri telephone ...?company K 20L 20M 20TELEPHONE 20COMPANY&state MO Telcodata.us, K L M Telephone Company, Accessed April 27, 2012 ref . It is owned by American Broadband . History Formation & Expansion KLM Telephone Company began in 1955 as a business investment by Ken Kern . He purchased the Rich Hill Telephone ... James Lamble later joined. Rich Hill Telephone Company was then renamed KLM Telephone Company , representing Kern Lamble Mauser. The partners formed a holding company for the telephone company ... within six months. Missouri Union Telephone Company, Deerfield s service provider, was merged into the KLM Telephone Company in 1973. By 1975, KLM Telephone Company consisted of the merged operations of the following acquired telephone companies family run operations Rich Hill Telephone Company 1955 Papinville, MO telephone operations 1956 Metz, MO and Richards, MO telephone exchanges 1959 managed as a separate partnership, Missouri Union Telephone Company Missouri Union Telephone Company, fully ... 23, 1992 ref http web.archive.org web 20090430075747 http www.klmtel.net history.htm History, KLM Telephone ... acquires Copsey Family Telephone Operations, November 29, 2007 ref . KLM Telephone then became ... KLM Telephone Company operates in Bates County, Missouri and Vernon County, Missouri . The Berry ... more details
File Bell Edison Telephone Building.jpg thumb 340px The Edison Bell Telephone Company building of 1896 in Birmingham , England A telephone company also known as a telco , telecommunications operator , communications service provider , or CSP is a service provider of telecommunications services such as telephony and data communication s access. Many were at one time nationalized or state regulated monopoly monopolies . These monopolies are often referred to, primarily in Europe, as Postal Telegraph and Telephone s PTTs . Telephone companies are common carrier s, and in the United States are also called local exchange carrier s. With the advent of mobile telephony , telephone companies now include wireless carrier s, or mobile network operator s. Most telephone companies now also function as internet service provider s ISPs , and the distinction between a telephone company and an ISP may disappear completely over time, as the current trend for supplier convergence in the industry continues. Popular culture Comedian Lily Tomlin frequently satirized the telephone industry and the country s then dominant Bell System in particular with a sketch comedy skit playing the telephone operator Ernestine. Ernestine, who became one of Tomlin s trademark characters, was perhaps most famous for the following line We don t care we don t have to. We re the phone company. In the satirical 1967 film The President s Analyst , TPC, The Phone Company, is depicted as plotting to enslave humanity by replacing landline s with mobile phone s. See also colbegin 2 Bell Telephone Company , forerunner of AT&T ... service provider History of the telephone Incumbent local exchange carrier of the Bell System List of telephone operating companies List of mobile network operators Mobile network operator Public switched telephone network Telecommunications Industry Association for the development of U.S. ... Telephone Company Category Telecommunications companies Category Public utilities ar da ... more details
An extension telephone is an additional telephone wired to the same telephone line as another. In middle 20th century telephone jargon, the first telephone on a line was a Main Station and subsequent ones Extensions . Such extension phones allow making or receiving calls in different rooms, for example in a home. Some telephones intended for use as extensions have built in intercom features. A telephone extension is an internal telephone line attached to a Private branch exchange PBX or Centrex system. The PBX operates much as a community switchboard does for a geographic telephone numbering plan and allows multiple lines inside the office to connect without each phone requiring a separate outside line. In these systems, a dialer usually has to dial a number typically 9 in North America, 0 in Europe to tell the PBX to connect with a landline also called DDCO, or em Direct Dial Central Office em to dial an external number. Within the PBX, the user merely dials the extension number of the person. Each phone line may be extended up to a fixed maximum. Reasons to use extensions Since not all users dial out at the same time, sharing trunking trunk lines is cheaper than giving each phone its own private landline. ref Newton, H Newton s telecom dictionary , page 901. CMP books, 2004 ref Extension to extension calls can be made and kept within the company for security reasons. Extensions make it easier for workers to bring their telephone number with them if they change offices in the building. Extensions allow personalized traffic and Call accounting data to be captured by the PBX or a phone recorder to be used to optimize resources. ref http www.versadial.com call recording terms.html extension Extension Call recording terms ref References references Category Telephony equipment Category Local loop de Nebenstelle nl Doorkiesnummer pt Ramal telefonia ... more details
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