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68-544: GTE Corporation , formerly General Telephone & Electronics Corporation (1955–1982), was the largest independent telephone company in the United States during the days of the Bell System . The company operated from 1926, with roots tracing further back than that, until 2000, when it was acquired by Bell Atlantic, which change its name to Verizon . The Wisconsin -based Associated Telephone Utilities Company

136-1202: A deal to acquire Frontier, which will return much of the former GTE network to Verizon ownership. Prior to the merger with Bell Atlantic, GTE owned the following operating companies in the US: Following the merger of GTE and Bell Atlantic, some of these companies and/or access lines have been sold off to other companies, such as Alltel , ATEAC , The Carlyle Group , CenturyTel , Citizens/Frontier Communications , and Valor Telecom . Independent telephone company The second fundamental Bell patent for telephones expired on 30 January 1894, which provided an opportunity for independent companies to provide telephone services, although some had been established before that date. The Strowger Automatic Telephone Exchange company had been formed on 30 October 1891. The first Strowger switch went into operation on 3 November 1892 in LaPorte, Indiana , with 75 subscribers and capacity for 99. Independent manufacturing companies were established, such as Stromberg-Carlson in 1894 and Kellogg Switchboard & Supply Company in 1897. By 1903 while

204-405: A dedicated analog circuit-switched service. Other advantages include better voice quality and integration to a Voice over Internet Protocol (VoIP) network providing cheap or unlimited nationwide and international calling. In many cases, digital cable telephone service is separate from cable modem service being offered by many cable companies and does not rely on Internet Protocol (IP) traffic or

272-743: A distinct provincial carrier; MTS encompasses Manitoba's former provincial company (Bell Canada purchased MTS in 2017; it is currently known as Bell MTS ). Telus and Bell are competitors in each other's territory. There are still some independent companies in Ontario and Quebec, and one in British Columbia. Cable television Cable television is a system of delivering television programming to consumers via radio frequency (RF) signals transmitted through coaxial cables , or in more recent systems, light pulses through fibre-optic cables . This contrasts with broadcast television , in which

340-436: A given location, cable distribution lines must be available on the local utility poles or underground utility lines. Coaxial cable brings the signal to the customer's building through a service drop , an overhead or underground cable. If the subscriber's building does not have a cable service drop, the cable company will install one. The standard cable used in the U.S. is RG-6 , which has a 75 ohm impedance , and connects with

408-543: A high elevation. At the outset, cable systems only served smaller communities without television stations of their own, and which could not easily receive signals from stations in cities because of distance or hilly terrain. In Canada, however, communities with their own signals were fertile cable markets, as viewers wanted to receive American signals. Rarely, as in the college town of Alfred, New York , U.S. cable systems retransmitted Canadian channels. Although early ( VHF ) television receivers could receive 12 channels (2–13),

476-466: A higher rate. At the local headend, the feed signals from the individual television channels are received by dish antennas from communication satellites . Additional local channels, such as local broadcast television stations, educational channels from local colleges, and community access channels devoted to local governments ( PEG channels) are usually included on the cable service. Commercial advertisements for local business are also inserted in

544-405: A local VHF television station broadcast. Local broadcast channels were not usable for signals deemed to be a priority, but technology allowed low-priority signals to be placed on such channels by synchronizing their blanking intervals . TVs were unable to reconcile these blanking intervals and the slight changes due to travel through a medium, causing ghosting . The bandwidth of the amplifiers also

612-463: A microwave-based system, may be used instead. Coaxial cables are capable of bi-directional carriage of signals as well as the transmission of large amounts of data . Cable television signals use only a portion of the bandwidth available over coaxial lines. This leaves plenty of space available for other digital services such as cable internet , cable telephony and wireless services, using both unlicensed and licensed spectra. Broadband internet access

680-687: A nearby larger independent company, and automatic service was provided in 1983. In Canada, Bell Canada has a dominant position as a local service provider, particularly east of Manitoba and in the Northern territories, mostly through subsidiaries in Ontario and Quebec, and entirely through subsidiaries beyond those two provinces. The remaining independent telephone companies are in British Columbia (just one), Ontario and Quebec ; all but three independents in Alberta, Saskatchewan, Manitoba,

748-479: A project to create satellite stations. A few years later, the company's international branch was replaced by a GTE products company in 1976. Their products company remained until 1979. In 1979, GTE purchased Telenet to establish a presence in the growing packet switching data communications business. GTE Telenet was later included in the US Telecom joint venture. In December 1983 Vanderslice stepped down as

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816-564: A rarity, found in an ever-dwindling number of markets. Analog television sets are accommodated, their tuners mostly obsolete and dependent entirely on the set-top box. Cable television is mostly available in North America , Europe , Australia , Asia and South America . Cable television has had little success in Africa , as it is not cost-effective to lay cables in sparsely populated areas. Multichannel multipoint distribution service ,

884-455: A receiver box. The cable company will provide set-top boxes based on the level of service a customer purchases, from basic set-top boxes with a standard-definition picture connected through the standard coaxial connection on the TV, to high-definition wireless digital video recorder (DVR) receivers connected via HDMI or component . Older analog television sets are cable ready and can receive

952-703: A series of signal amplifiers and line extenders. These devices carry the signal to customers via passive RF devices called taps. The very first cable networks were operated locally, notably in 1936 by Rediffusion in London in the United Kingdom and the same year in Berlin in Germany, notably for the Olympic Games , and from 1948 onwards in the United States and Switzerland. This type of local cable network

1020-417: A special telephone interface at the customer's premises that converts the analog signals from the customer's in-home wiring into a digital signal, which is then sent on the local loop (replacing the analog last mile , or plain old telephone service (POTS) to the company's switching center, where it is connected to the public switched telephone network ( PSTN ). The biggest obstacle to cable telephone service

1088-631: A subsidiary, named the General Telephone and Electric Corporation, formed in 1930 with the Transamerica Corporation and British investors to compete against ITT. In 1959, Sylvania Electric Products merged into General Telephone and was renamed to General Telephone & Electronics Corporation (GT&E). Power also obtained the purchases of multiple companies. such as Lenkurt Electric Company, Inc and Peninsular Telephone Company. In 1960, GT&E International Incorporated

1156-605: A type F connector . The cable company's portion of the wiring usually ends at a distribution box on the building exterior, and built-in cable wiring in the walls usually distributes the signal to jacks in different rooms to which televisions are connected. Multiple cables to different rooms are split off the incoming cable with a small device called a splitter . There are two standards for cable television; older analog cable, and newer digital cable which can carry data signals used by digital television receivers such as high-definition television (HDTV) equipment. All cable companies in

1224-422: Is achieved over coaxial cable by using cable modems to convert the network data into a type of digital signal that can be transferred over coaxial cable. One problem with some cable systems is the older amplifiers placed along the cable routes are unidirectional thus in order to allow for uploading of data the customer would need to use an analog telephone modem to provide for the upstream connection. This limited

1292-482: Is the need for nearly 100% reliable service for emergency calls. One of the standards available for digital cable telephony, PacketCable , seems to be the most promising and able to work with the quality of service (QOS) demands of traditional analog plain old telephone service (POTS) service. The biggest advantage to digital cable telephone service is similar to the advantage of digital cable, namely that data can be compressed, resulting in much less bandwidth used than

1360-606: Is used in the US for cable television and originally stood for community antenna television , from cable television's origins in 1948; in areas where over-the-air TV reception was limited by distance from transmitters or mountainous terrain, large community antennas were constructed, and cable was run from them to individual homes. In 1968, 6.4% of Americans had cable television. The number increased to 7.5% in 1978. By 1988, 52.8% of all households were using cable. The number further increased to 62.4% in 1994. To receive cable television at

1428-492: The DVB-C , DVB-C2 stream to IP for distribution of TV over IP network in the home. Many cable companies offer internet access through DOCSIS . In the most common system, multiple television channels (as many as 500, although this varies depending on the provider's available channel capacity) are distributed to subscriber residences through a coaxial cable , which comes from a trunkline supported on utility poles originating at

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1496-691: The United States Telecom Association . Bryant Pond in Woodstock, Maine was known as having the last manual magneto (hand-crank) telephone exchange in America. The family-owned Bryant Pond Telephone Company was operated from a two-position magneto switchboard in the living room of owners Barbara and Elden Hathaway. In 1981, the company was purchased by the Oxford County Telephone & Telegraph Company,

1564-616: The high band 7–13 of North American television frequencies . Some operators as in Cornwall, Ontario , used a dual distribution network with Channels 2–13 on each of the two cables. During the 1980s, United States regulations not unlike public, educational, and government access (PEG) created the beginning of cable-originated live television programming. As cable penetration increased, numerous cable-only TV stations were launched, many with their own news bureaus that could provide more immediate and more localized content than that provided by

1632-549: The Atlantic provinces and the northern territories were acquired by dominant provincial carriers by the 1970s, leaving some 55 independents mostly in Ontario. The dominant provincial carriers were Alberta Government Telephones (AGT), BC Tel , Manitoba Telephone System , New Brunswick Telephone Co. (Bell subsidiary since the 1960s), Newfoundland Telephone (Bell subsidiary since the 1960s), Maritime Telegraph & Telephone (Nova Scotia), Island Tel (P.E.I.) and SaskTel . Bell and

1700-458: The Bell system had 1,278,000 subscribers on 1,514 main exchanges, the independents, excluding non-profit rural cooperatives, claimed about 2 million subscribers on 6,150 exchanges. The size ranged from small mom and pop companies run by a husband and wife team, to large independent companies, such as GTE , Theodore Gary & Company , United Telecom , ConTel and Centel , which resembled

1768-454: The Bell system with vertical integration . GTE was the largest non- RBOC domestic telephone company, and included local operating companies, long line (toll) companies and manufacturing companies. A small mom and pop company might have had the husband doing the outside lines work and the wife operating a manual switchboard. Later these small companies would have a Class 5 telephone switch providing local automatic service. Much of this equipment

1836-566: The GTE–Bell Atlantic merger that created Verizon. GTE operated in Canada via large interests in subsidiary companies such as BC Tel and Quebec-Téléphone . When foreign ownership restrictions on telecommunications companies were introduced, GTE's ownership was grandfathered . When BC Tel merged with Telus (the name given to the privatized Alberta Government Telephones (AGT)) to create BCT.Telus , GTE's Canadian subsidiaries were merged into

1904-512: The U.S. through operating companies , much as American Telephone & Telegraph provided local telephone service through its 22 Bell Operating Companies . The company acquired BBN Planet , one of the earliest Internet service providers, in 1997. That division became known as GTE Internetworking, and was later spun off into the independent company Genuity (a name recycled from another Internet company GTE acquired in 1997) to satisfy Federal Communications Commission (FCC) requirements regarding

1972-485: The United States have switched to or are in the course of switching to digital cable television since it was first introduced in the late 1990s. Most cable companies require a set-top box ( cable converter box ) or a slot on one's TV set for conditional access module cards to view their cable channels, even on newer televisions with digital cable QAM tuners, because most digital cable channels are now encrypted, or scrambled , to reduce cable service theft . A cable from

2040-404: The basic selection. By subscribing to additional tiers, customers could get specialty channels, movie channels, and foreign channels. Large cable companies used addressable descramblers to limit access to premium channels for customers not subscribing to higher tiers, however the above magazines often published workarounds for that technology as well. During the 1990s, the pressure to accommodate

2108-563: The cable box itself, these midband channels were used for early incarnations of pay TV , e.g. The Z Channel (Los Angeles) and HBO but transmitted in the clear i.e. not scrambled as standard TV sets of the period could not pick up the signal nor could the average consumer de-tune the normal stations to be able to receive it. Once tuners that could receive select mid-band and super-band channels began to be incorporated into standard television sets, broadcasters were forced to either install scrambling circuitry or move these signals further out of

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2176-429: The cable company's local distribution facility, called the headend . Many channels can be transmitted through one coaxial cable by a technique called frequency division multiplexing . At the headend, each television channel is translated to a different frequency . By giving each channel a different frequency slot on the cable, the separate television signals do not interfere with each other. At an outdoor cable box on

2244-515: The cable to send data from the customer box to the cable headend, for advanced features such as requesting pay-per-view shows or movies, cable internet access , and cable telephone service . The downstream channels occupy a band of frequencies from approximately 50 MHz to 1 GHz, while the upstream channels occupy frequencies of 5 to 42 MHz. Subscribers pay with a monthly fee. Subscribers can choose from several levels of service, with premium packages including more channels but costing

2312-675: The case of no local CBS or ABC station being available – rebroadcast the programming from a nearby affiliate but fill in with its own news and other community programming to suit its own locale. Many live local programs with local interests were subsequently created all over the United States in most major television markets in the early 1980s. This evolved into today's many cable-only broadcasts of diverse programming, including cable-only produced television movies and miniseries . Cable specialty channels , starting with channels oriented to show movies and large sporting or performance events, diversified further, and narrowcasting became common. By

2380-508: The chosen channel into the TV set on Channel 2, 3 or 4. Initially, UHF broadcast stations were at a disadvantage because the standard TV sets in use at the time were unable to receive their channels. With the passage of the All-Channel Receiver Act in 1964, all new television sets were required to include a UHF tuner, nonetheless, it would still take a few years for UHF stations to become competitive. Before being added to

2448-512: The company's headquarters in New York City, the company relocated to Stamford, Connecticut for their new headquarters. In 1971 GT&E undertook an identity change and became simply GTE, while Sylvania Electric Products became GTE Sylvania. The same year, Donald C. Power retired and Leslie H. Warner became chairman of the board. Theodore F. Brophy was brought in as president. In 1974, GTE worked with American Telephone & Telegraph in

2516-408: The company's president and chief operating officer. In April 1988, after the retirement of Theodore F. Brophy, James L. "Rocky" Johnson was promoted from his position as president and chief operating officer to CEO of GTE; he was appointed chairman in 1991. Under Johnson's leadership, GTE divested its 50% ownership of US Sprint , the nation's third largest long-distance company. He also orchestrated

2584-526: The company's satellite provider, Spacenet , to General Electric and Contel of Maine to Oxford Networks , which placed the company into a newly created subsidiary, Oxford West Telephone . Bell Atlantic merged with GTE on June 30, 2000, and named the new entity Verizon Communications . The GTE operating companies retained by Verizon are now collectively known as Verizon West division of Verizon (including east coast service territories). The remaining smaller operating companies were sold off or transferred into

2652-420: The disappearance of Telecom Canada; "independent" is no longer distinguished as a formal alliance, but now as a comparison of size and share of ILEC lines. By 2001, Bell Canada remained the dominant incumbent LEC carrier in Ontario and urban areas of Quebec; Telus dominated in Alberta and B.C., Aliant Telecom encompassed all four Atlantic provinces plus former Bell areas in rural Ontario and Quebec; SaskTel remains

2720-623: The eight provincial carriers participated in the Trans-Canada Telephone System, later known as Telecom Canada . Northwestel was the largest independent by land area covered that was not included in Telecom Canada; other large independents, by customer share, were Edmonton Telephones and Thunder Bay Telephone . More restructuring, mergers and acquisitions, and the introduction of competition and mergers between competitors and some provincial carriers, resulted in

2788-455: The end of the decade, ten million GT&E phones were active. In the late 1960s, GT&E joined in the search for a railroad car Automatic Car Identification system. It designed the KarTrak optical system, which won over other manufacturer's systems in field trials, but ultimately proved to need too much maintenance. In the late 1970s the system was abandoned. After a 1970 bomb attack to

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2856-415: The fact that the descrambling circuitry was for a time present in these tuners, depriving the cable operator of much of their revenue, such cable-ready tuners are rarely used now – requiring a return to the set-top boxes used from the 1970s onward. The digital television transition in the United States has put all signals, broadcast and cable, into digital form, rendering analog cable television service

2924-505: The first voice, video, and data services community in Cerritos, California to test home banking, at-home shopping, home security, and pay-per-view television in 16,000 homes and 2,000 businesses. In April 1992, James L. "Rocky" Johnson retired after 43 years at GTE, remaining on the GTE board of directors as chairman emeritus. Charles "Chuck" Lee was named to succeed Johnson. In 1994, Lee sold

2992-457: The growing array of offerings resulted in digital transmission that made more efficient use of the VHF signal capacity; fibre optics was common to carry signals into areas near the home, where coax could carry higher frequencies over the short remaining distance. Although for a time in the 1980s and 1990s, television receivers and VCRs were equipped to receive the mid-band and super-band channels. Due to

3060-450: The headend, the electrical signal is translated into an optical signal and sent through the fiber. The fiber trunkline goes to several distribution hubs , from which multiple fibers fan out to carry the signal to boxes called optical nodes in local communities. At the optical node, the optical signal is translated back into an electrical signal and carried by coaxial cable distribution lines on utility poles, from which cables branch out to

3128-460: The jack in the wall is attached to the input of the box, and an output cable from the box is attached to the television, usually the RF-IN or composite input on older TVs. Since the set-top box only decodes the single channel that is being watched, each television in the house requires a separate box. Some unencrypted channels, usually traditional over-the-air broadcast networks, can be displayed without

3196-437: The late 1980s, cable-only signals outnumbered broadcast signals on cable systems, some of which by this time had expanded beyond 35 channels. By the mid-1980s in Canada, cable operators were allowed by the regulators to enter into distribution contracts with cable networks on their own. By the 1990s, tiers became common, with customers able to subscribe to different tiers to obtain different selections of additional channels above

3264-423: The maximum number of channels that could be broadcast in one city was 7: channels 2, 4, either 5 or 6, 7, 9, 11 and 13, as receivers at the time were unable to receive strong (local) signals on adjacent channels without distortion. (There were frequency gaps between 4 and 5, and between 6 and 7, which allowed both to be used in the same city). As equipment improved, all twelve channels could be utilized, except where

3332-451: The nearest network newscast. Such stations may use similar on-air branding as that used by the nearby broadcast network affiliate, but the fact that these stations do not broadcast over the air and are not regulated by the FCC, their call signs are meaningless. These stations evolved partially into today's over-the-air digital subchannels, where a main broadcast TV station e.g. NBC 37* would – in

3400-984: The new parent, making it the second-largest telecommunications carrier in Canada. As such, GTE's successor, Verizon Communications, was the only foreign telecommunications company with a greater than 20% interest in a Canadian carrier, until Verizon completely divested itself of its shares in 2004. In the Caribbean, CONTEL purchased several major stakes in the newly independent countries of the British West Indies (namely in Barbados , Jamaica , and Trinidad and Tobago ). Prior to GTE's merger with Bell Atlantic, GTE also maintained an interactive television service joint-venture called GTE mainStreet (sometimes also called mainStreet USA) as well as an interactive entertainment and video game publishing operation, GTE Interactive Media . In 1934, General Telephone Corporation

3468-408: The old analog cable without a set-top box. To receive digital cable channels on an analog television set, even unencrypted ones, requires a different type of box, a digital television adapter supplied by the cable company or purchased by the subscriber. Another new distribution method that takes advantage of the low cost high quality DVB distribution to residential areas, uses TV gateways to convert

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3536-504: The programming at the headend (the individual channels, which are distributed nationally, also have their own nationally oriented commercials). Modern cable systems are large, with a single network and headend often serving an entire metropolitan area . Most systems use hybrid fiber-coaxial (HFC) distribution; this means the trunklines that carry the signal from the headend to local neighborhoods are optical fiber to provide greater bandwidth and also extra capacity for future expansion. At

3604-454: The programming without cost. Later, the cable operators began to carry FM radio stations, and encouraged subscribers to connect their FM stereo sets to cable. Before stereo and bilingual TV sound became common, Pay-TV channel sound was added to the FM stereo cable line-ups. About this time, operators expanded beyond the 12-channel dial to use the midband and superband VHF channels adjacent to

3672-476: The range of reception for early cable-ready TVs and VCRs. However, once consumer sets had the ability to receive all 181 FCC allocated channels, premium broadcasters were left with no choice but to scramble. The descrambling circuitry was often published in electronics hobby magazines such as Popular Science and Popular Electronics allowing anybody with anything more than a rudimentary knowledge of broadcast electronics to be able to build their own and receive

3740-844: The remaining ones. Additional properties were sold off within a few years after the merger to CenturyTel , Alltel , and Hawaiian Telcom . On July 1, 2010, Verizon sold many former GTE properties to Frontier Communications . Other GTE territories in California, Florida, and Texas were sold to Frontier in 2015 and transferred in 2016, thus ending Verizon's landline operations outside of the historic Bell Atlantic footprint. Verizon still operates phone service in non-Bell System areas in Pennsylvania under Verizon North , and in non-Bell System areas in Virginia and Knotts Island, North Carolina under Verizon South . In September 2024, Verizon announced

3808-535: The sale of Sylvania and the merger with Contel, creating the 2nd largest telephone company in the United States. In 1989, GTE reorganized into six operating groups, focusing on its core businesses of telephone operations, information services, and publishing of telephone directories. With previous job cuts and announced future job cuts, Johnson was able to return GTE to profitability. Other new services provided under his leadership were GTE Mobilenet cellular telephone operations, Airfone air-to-ground telephone services, and

3876-418: The signals are typically encrypted on modern digital cable systems, and the set-top box must be activated by an activation code sent by the cable company before it will function, which is only sent after the subscriber signs up. If the subscriber fails to pay their bill, the cable company can send a signal to deactivate the subscriber's box, preventing reception. There are also usually upstream channels on

3944-403: The subscriber's residence, the company's service drop cable is connected to cables distributing the signal to different rooms in the building. At each television, the subscriber's television or a set-top box provided by the cable company translates the desired channel back to its original frequency ( baseband ), and it is displayed onscreen. Due to widespread cable theft in earlier analog systems,

4012-458: The television signal is transmitted over-the-air by radio waves and received by a television antenna , or satellite television , in which the television signal is transmitted over-the-air by radio waves from a communications satellite and received by a satellite dish on the roof. FM radio programming, high-speed Internet , telephone services , and similar non-television services may also be provided through these cables. Analog television

4080-532: The upstream speed to 31.2 Kbp/s and prevented the always-on convenience broadband internet typically provides. Many large cable systems have upgraded or are upgrading their equipment to allow for bi-directional signals, thus allowing for greater upload speed and always-on convenience, though these upgrades are expensive. In North America , Australia and Europe , many cable operators have already introduced cable telephone service, which operates just like existing fixed line operators. This service involves installing

4148-424: Was created as a branch company. Power was named C.E.O. and chairman in 1961, making way for Leslie H. Warner, formerly of Theodore Gary, to become president. Simultaneously, GT&E went on to buy Community Antenna Television providers. In 1964, Western Utilities Corporation became part of GT&E. Additional purchases during the 1960s included Hawaiian Telephone Company and Northern Ohio Telephone Company. At

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4216-453: Was established with John Winn as president. The following year, the company created General Telephone Directory Company as a division. During World War II, General Telephone helped install phone service for military facilities. From 1946 to 1950, General Telephone obtained over 100,000 telephone lines and bought out Leich Electric Company. General Telephone's holdings included 15 telephone companies across 20 states by 1951, when Donald C. Power

4284-529: Was founded in 1926; it went bankrupt in 1933 during the Great Depression , and was reorganized as General Telephone in 1934. In 1991, it acquired the third largest independent, Continental Telephone (ConTel). It owned Automatic Electric , a telephone equipment supplier similar in many ways to Western Electric , and Sylvania Lighting , the only non-communications-oriented company under GTE ownership. GTE provided local telephone service to many areas of

4352-427: Was limited, meaning frequencies over 250 MHz were difficult to transmit to distant portions of the coaxial network, and UHF channels could not be used at all. To expand beyond 12 channels, non-standard midband channels had to be used, located between the FM band and Channel 7, or superband beyond Channel 13 up to about 300 MHz; these channels initially were only accessible using separate tuner boxes that sent

4420-559: Was mainly used to relay terrestrial channels in geographical areas poorly served by terrestrial television signals. Cable television began in the United States as a commercial business in 1950s. The early systems simply received weak ( broadcast ) channels, amplified them, and sent them over unshielded wires to the subscribers, limited to a community or to adjacent communities. The receiving antenna would be taller than any individual subscriber could afford, thus bringing in stronger signals; in hilly or mountainous terrain it would be placed at

4488-864: Was manufactured by the Automatic Electric Company , Stromberg-Carlson , and the Kellogg Switchboard & Supply Company . From 1949, the Rural Electrification Authority (REA), now the Rural Utilities Service , could provide assistance to telephone co-operatives to extend telephone service in rural areas. The voice of the smaller independents were the two magazines, Telephony and Telephone Engineer and Management (TE&M), both from Chicago. The United States Independent Telephone Association (USITA), their trade association, became

4556-430: Was named president of the company under chairman and long-time GT executive Morris F. LaCroix, replacing the retiring Harold Bozell (president 1940 – 1951). Power proceeded to expand the company through the 1950s principally through two acquisitions. In 1955, Theodore Gary & Company became a part of General Telephone and allowed the company to hold over 2 million telephone lines after the companies merged. It also had

4624-455: Was standard in the 20th century, but since the 2000s, cable systems have been upgraded to digital cable operation. A cable channel (sometimes known as a cable network ) is a television network available via cable television. Many of the same channels are distributed through satellite television . Alternative terms include non-broadcast channel or programming service , the latter being mainly used in legal contexts. The abbreviation CATV

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