Telecommunication is the transmission of signs, messages, writings and sounds or information of any nature by wire, optical or other electromagnetic systems. Telecommunication occurs when the exchange of information between communication participants includes the use of technology, it is transmitted either electrically over physical media, such as cables, or via electromagnetic radiation. Such transmission paths are divided into communication channels which afford the advantages of multiplexing. Since the Latin term communicatio is considered the social process of information exchange, the term telecommunications is used in its plural form because it involves many different technologies. Early means of communicating over a distance included visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, optical heliographs. Other examples of pre-modern long-distance communication included audio messages such as coded drumbeats, lung-blown horns, loud whistles. 20th- and 21st-century technologies for long-distance communication involve electrical and electromagnetic technologies, such as telegraph and teleprinter, radio, microwave transmission, fiber optics, communications satellites.
A revolution in wireless communication began in the first decade of the 20th century with the pioneering developments in radio communications by Guglielmo Marconi, who won the Nobel Prize in Physics in 1909, other notable pioneering inventors and developers in the field of electrical and electronic telecommunications. These included Charles Wheatstone and Samuel Morse, Alexander Graham Bell, Edwin Armstrong and Lee de Forest, as well as Vladimir K. Zworykin, John Logie Baird and Philo Farnsworth; the word telecommunication is a compound of the Greek prefix tele, meaning distant, far off, or afar, the Latin communicare, meaning to share. Its modern use is adapted from the French, because its written use was recorded in 1904 by the French engineer and novelist Édouard Estaunié. Communication was first used as an English word in the late 14th century, it comes from Old French comunicacion, from Latin communicationem, noun of action from past participle stem of communicare "to share, divide out.
Homing pigeons have been used throughout history by different cultures. Pigeon post had Persian roots, was used by the Romans to aid their military. Frontinus said; the Greeks conveyed the names of the victors at the Olympic Games to various cities using homing pigeons. In the early 19th century, the Dutch government used the system in Sumatra, and in 1849, Paul Julius Reuter started a pigeon service to fly stock prices between Aachen and Brussels, a service that operated for a year until the gap in the telegraph link was closed. In the Middle Ages, chains of beacons were used on hilltops as a means of relaying a signal. Beacon chains suffered the drawback that they could only pass a single bit of information, so the meaning of the message such as "the enemy has been sighted" had to be agreed upon in advance. One notable instance of their use was during the Spanish Armada, when a beacon chain relayed a signal from Plymouth to London. In 1792, Claude Chappe, a French engineer, built the first fixed visual telegraphy system between Lille and Paris.
However semaphore suffered from the need for skilled operators and expensive towers at intervals of ten to thirty kilometres. As a result of competition from the electrical telegraph, the last commercial line was abandoned in 1880. On 25 July 1837 the first commercial electrical telegraph was demonstrated by English inventor Sir William Fothergill Cooke, English scientist Sir Charles Wheatstone. Both inventors viewed their device as "an improvement to the electromagnetic telegraph" not as a new device. Samuel Morse independently developed a version of the electrical telegraph that he unsuccessfully demonstrated on 2 September 1837, his code was an important advance over Wheatstone's signaling method. The first transatlantic telegraph cable was completed on 27 July 1866, allowing transatlantic telecommunication for the first time; the conventional telephone was invented independently by Alexander Bell and Elisha Gray in 1876. Antonio Meucci invented the first device that allowed the electrical transmission of voice over a line in 1849.
However Meucci's device was of little practical value because it relied upon the electrophonic effect and thus required users to place the receiver in their mouth to "hear" what was being said. The first commercial telephone services were set-up in 1878 and 1879 on both sides of the Atlantic in the cities of New Haven and London. Starting in 1894, Italian inventor Guglielmo Marconi began developing a wireless communication using the newly discovered phenomenon of radio waves, showing by 1901 that they could be transmitted across the Atlantic Ocean; this was the start of wireless telegraphy by radio. Voice and music had little early success. World War I accelerated the development of radio for military communications. After the war, commercial radio AM broadcasting began in the 1920s and became an important mass medium for entertainment and news. World War II again accelerated development of radio for the wartime purposes of aircraft and land communication, radio navigation and radar. Development of stereo FM broadcasting of radio
CenturyLink, Inc. is an American telecommunications company, headquartered in Monroe, that provides communications and data services to residential, business and wholesale customers in 37 states. A member of the S&P 500 index and the Fortune 500, the company operates as a local exchange carrier and Internet access provider in U. S. markets and is the third-largest telecommunications company in the United States in terms of lines served, behind AT&T and Verizon and provides long distance service. CenturyLink serves global enterprise customers across North America, Latin America, EMEA and Asia Pacific; the earliest predecessor of CenturyLink was the Oak Ridge Telephone Company in Oak Ridge, owned by F. E. Hogan, Sr. In 1930, Hogan sold the company, with 75 paid subscribers, to William Clarke and Marie Williams, for $500, they moved the switchboard to the Williams family front parlor. In 1946, the Williams' son, Clarke McRae Williams, received ownership of the family's telephone company as a wedding gift.
In 1947, Clarke Williams learned the telephone company in Marion, Louisiana was for sale. With a loan from business associate Joe Sydney Carter, Clarke purchased the Marion Telephone Company and made it his base of operation as he grew his company through more acquisitions. CenturyLink still maintains offices in the former headquarters building; the company remained as a family-operated business until it became incorporated in 1968. By 1967, Oak Ridge Telephone Company served three states with 10,000 access lines; that year, the company was incorporated as Central Electronics. Clarke M. Williams served as chairman of the board. Between 1972 and 1975, Clarke moved his headquarters from Marion to Monroe, Louisiana, to access the larger employee base and to be near the airport. In 1971, the company was renamed as Inc.. In 1972, Century Telephone acquired the La Crosse Telephone Corporation, of Wisconsin. On October 24, 1978, Century Telephone moved to the New York Stock Exchange for the first time and began to trade under the ticker symbol CTL.
Century Telephone performed well during the long bear market of the 1970s, as its stock rose over fourfold. The company provided telephone service in parts of 14 states by that time. In 1981, Century Telephone acquired War Telephone in West Virginia. In 1982, Century Telephone's earnings peaked at $14 million declined in 1983 following the early 1980s recession, began to recover in 1984. However, the 1983 decline led to a loss of half the value of the company's stock in 1984. In 1985, both earnings and the stock price had recovered to new record highs, but by the company had accumulated $206 million in long-term debt. Century Telephone sold the operations of War Telephone and two other companies to Colonial Telephone for $4.66 million. In 1987, the stock price nearly doubled from its low that year, from its old 1982 record high, before falling back by a third in the 1987 stock market crash. Earnings had grown each year from their 1983 low, by 1987 reached nearly US$20 million. In 1989, Century Telephone Enterprises acquired Universal Inc. for US$90 million in cash.
During the late 1980s the company began a long trend in which it performed well. The stock split three-for-two twice in this period, as earnings grew, through the 1990-1991 recession, by year-end 1991, they reached nearly US$40 million, double from what they had been in 1987. In 1992, Century Telephone acquired Central Telephone Company of Ohio, a Centel subsidiary, for $135 million; the acquisition served more than 65,000 access lines, added 20% to Century's access line total. That year Glen F. Post III became Chief Executive Officer and, named Vice Chairman of the Board of Century Telephone. In 1993, Century Telephone revenues were over $425 million, up from about $350 million in 1992. 1993 earnings were nearly $80 million, up from about $70 million in 1992, excluding a nearly $16 million charge in 1992 due to the cumulative effect from an accounting change that year. In 1993 the company split its stock three-for-two yet again. However, by that time, the company had accumulated nearly $520 million in long-term debt.
By 1995, Century Telephone Enterprises had been added to the S&P MidCap 400 index. Earnings had continued their steady growth trend through the 1994 economic soft landing, by 1995 they reached over US$115 million, but the long-term debt continued reaching US$623 million that year. In 1997, Century Telephone acquired Delta Security Alarm Co. Inc. of Monroe and its largest acquisition up until that time, Pacific Telecom, doubling its size with 660,000 additional telephone access lines in 12 states. Pacific Telecom, Inc. was renamed CenturyTel of the Northwest, Inc.. In 1998, Century Telephone split its stock three-for-two once again; the company acquired another Monroe, Louisiana security company, Century Protection Systems, acquired 89,000 access lines and 19 exchanges in 21 northern Wisconsin communities from Ameritech. The affected customers had been served by Wisconsin Bell. Ameritech's directory publishing operations serving those customers were acquired. In 1999, the company was renamed as Inc..
It split its stock three-for-two once more, was added to the Standard & Poor's 500 Index that year. In 2000, CenturyTel acquired 230,500 GTE lines in Arkansas, bought 127,000 GTE lines in Missouri in partnership with Spectra Communications. In Wisconsin, it acquired 133,000 additional lines, 70,500 access lines for US$195 million from Verizon; that year CenturyTel bought 62,650 lines for US$170 million in partnership with Telephone USA of Wisconsin, LLC. In 2001
A public company, publicly traded company, publicly held company, publicly listed company, or public limited company is a corporation whose ownership is dispersed among the general public in many shares of stock which are traded on a stock exchange or in over the counter markets. In some jurisdictions, public companies over a certain size must be listed on an exchange. A public company can be unlisted. Public companies are formed within the legal systems of particular nations, therefore have national associations and formal designations which are distinct and separate. For example one of the main public company forms in the United States is called a limited liability company, in France is called a "society of limited responsibility", in Britain a public limited company, in Germany a company with limited liability. While the general idea of a public company may be similar, differences are meaningful, are at the core of international law disputes with regard to industry and trade. In the early modern period, the Dutch developed several financial instruments and helped lay the foundations of modern financial system.
The Dutch East India Company became the first company in history to issue bonds and shares of stock to the general public. In other words, the VOC was the first publicly traded company, because it was the first company to be actually listed on an official stock exchange. While the Italian city-states produced the first transferable government bonds, they did not develop the other ingredient necessary to produce a fledged capital market: corporate shareholders; as Edward Stringham notes, "companies with transferable shares date back to classical Rome, but these were not enduring endeavors and no considerable secondary market existed." The securities of a publicly traded company are owned by many investors while the shares of a held company are owned by few shareholders. A company with many shareholders is not a publicly traded company. In the United States, in some instances, companies with over 500 shareholders may be required to report under the Securities Exchange Act of 1934. Public companies possess some advantages over held businesses.
Publicly traded companies are able to raise funds and capital through the sale of shares of stock. This is the reason publicly traded corporations are important; the profit on stock is gained in form of capital gain to the holders. The financial media and the public are able to access additional information about the business, since the business is legally bound, motivated, to publicly disseminate information regarding the financial status and future of the company to its many shareholders and the government; because many people have a vested interest in the company's success, the company may be more popular or recognizable than a private company. The initial shareholders of the company are able to share risk by selling shares to the public. If one were to hold a 100% share of the company, he or she would have to pay all of the business's debt; this increases asset liquidity and the company does not need to depend on funding from a bank. For example, in 2013 Facebook founder Mark Zuckerberg owned 29.3% of the company's class A shares, which gave him enough voting power to control the business, while allowing Facebook to raise capital from, distribute risk to, the remaining shareholders.
Facebook was a held company prior to its initial public offering in 2012. If some shares are given to managers or other employees, potential conflicts of interest between employees and shareholders will be remitted; as an example, in many tech companies, entry-level software engineers are given stock in the company upon being hired. Therefore, the engineers have a vested interest in the company succeeding financially, are incentivized to work harder and more diligently to ensure that success. Many stock exchanges require that publicly traded companies have their accounts audited by outside auditors, publish the accounts to their shareholders. Besides the cost, this may make useful information available to competitors. Various other annual and quarterly reports are required by law. In the United States, the Sarbanes–Oxley Act imposes additional requirements; the requirement for audited books is not imposed by the exchange known as OTC Pink. The shares may be maliciously held by outside shareholders and the original founders or owners may lose benefits and control.
The principal-agent problem, or the agency problem is a key weakness of public companies. The separation of a company's ownership and control is prevalent in such countries as U. K and U. S. In the United States, the Securities and Exchange Commission requires that firms whose stock is traded publicly report their major shareholders each year; the reports identify all institutional shareholders, all company officials who own shares in their firm, any individual or institution owning more than 5% of the firm's stock. For many years, newly created companies were held but held initial
OneWeb known as WorldVu Satellites, is a global communications company founded by Greg Wyler. The company is headquartered in London, United Kingdom and was founded in Arlington, Virginia, USA and plans to launch the OneWeb satellite constellation, a network of more than 650 low Earth orbit satellites, starting on February 27, 2019, its intended goal is to provide internet services to "everyone, everywhere" delivering much needed connectivity to rural and remote places as well as to a range of markets including aero, land mobility, cellular backhaul. The company was founded in 2012 based in Britain's Channel Islands. OneWeb secured $500 million in funding including launch deals with Virgin Galactic and Arianespace in 2015. In June 2015, OneWeb entered a deal with Airbus Defence and Space for the construction of its broadband Internet satellites after a competition among U. S. and European manufacturers. In December 2016, OneWeb raised $1 billion from SoftBank Group Corp. and $200 million from existing investors.
In July 2016, one year after the initial announcement, OneWeb stated. In February 2017, OneWeb announced that it expected to sell all of its capacity by launch time, yet the only announced capacity sold was for a joint Gogo and Intelsat venture. Wyler announced he was considering nearly quadrupling the size of the satellite constellation by adding 1,972 additional satellites that it has priority rights to. With the original capital raise of $500 million in 2015, plus the $1 billion investment of SoftBank in 2016, previous "investors committed to an additional $200 million, bringing OneWeb’s total capital raised to $1.7 billion."A merger arrangement with Intelsat, in negotiations during May 2017 collapsed in June and did not go forward. On January 31, 2019, OneWeb announced that it would be delaying its first rocket launch due to an anomaly discovered on the rocket. On February 27, 2019, OneWeb announced that it signed its first two client agreements marking the beginning of its commercialization.
On February 27, 2019, OneWeb launched its first six satellite into low Earth orbit from the Guiana Space Centre in French Guiana using a Soyuz-2 rocket. On March 18, 2019, OneWeb announced it had secured $1.25 billion in funding following a successful first launch on February 27, 2019. Official website
A wainwright or cartwright is a trades person skilled in the making and repairing of wagons and carts. The word wainwright is the combination of the archaic words "wain" and "wright", originating from the Old English wægnwyrhta. A master wainwright employs several craftsmen, including wheelwrights and painters
AT&T Mobility LLC known as AT&T Wireless, marketed as AT&T, is a wholly owned subsidiary of AT&T Inc. that provides wireless services to 153 million subscribers in the United States including Puerto Rico and the U. S. Virgin Islands. AT&T Mobility is the second largest wireless telecommunications provider in the United States and Puerto Rico behind Verizon Wireless and the largest wireless telecommunications provider in North America when including AT&T Mexico. Known as Cingular Wireless from 2000 to 2007, a joint venture between SBC Communications and BellSouth, the company acquired the old AT&T Wireless in 2004. In January 2007, Cingular confirmed. Although the legal corporate name change occurred for both regulatory and brand-awareness reasons both brands were used in the company's signage and advertising during a transition period; the transition concluded in late June, just prior to the rollout of the Apple iPhone. On March 20, 2011, AT&T Mobility announced its intention to acquire T-Mobile USA from Deutsche Telekom for $39 billion.
If it had received government and regulatory approval, AT&T would have had more than 130 million subscribers. However, the U. S. Department of Justice, the Federal Communications Commission, AT&T Mobility's competitors opposed the move on the grounds that it would reduce competition in the cellular network market. In December 2011, in the face of both governmental and widespread consumer opposition, AT&T withdrew its offer to complete the merger. Customers can choose to have one of the AT&T's Mobile Share Unlimited plans; as of January 8, 2016 AT&T no longer offers 2 year contracts for subsidized smart phones to its consumer customers. Customers who have 2 year contracts are grandfathered, until they upgrade to a new device they will have to choose from AT&T's NEXT installment plans for smartphones. AT&T reintroduced unlimited data plans for its customers who have either AT&T U-verse or AT&T's DirecTV. Unlimited data plans may be speed throttled. On the TV requirement was dropped for the Unlimited Plan followed by the introduction of the new Unlimited Plus and Choice plan series.
The new Unlimited Plans come with Entertainment perks for DirecTV, Uverse TV and DirecTV Now customers. With the inclusion of these new plans AT&T has introduced a free roaming in Mexico for its postpaid customers on select Mobile Share Plans and free Canada and Mexico roaming on Unlimited Plans. On May 21, 2018 AT&T dropped its roaming restrictions on the Unlimited Plans allowing customer to roam in Canada and Mexico without limits. AT&T allows existing customers to stay on legacy right plans. Within AT&T's 21-state landline footprint, other AT&T services are offered at the AT&T retail stores, including signing up for home phone, U-verse. AT&T stores outside of its footprint offer wireless services. All AT&T company-owned stores nationwide sell DirecTV. A large number of AT&T Mobility employees are unionized, belonging to the Communications Workers of America; the CWA represented 15,000 of the previous 20,000 AT&T Wireless employees as of early 2006. As of the end of 2009, the CWA website claims 40,000 workers of AT&T Mobility are represented by the union.
Cingular Wireless was founded in 2000 as a joint venture of SBC Communications and BellSouth. The joint venture created the nation's second-largest carrier. Cingular grew out of a conglomeration of more than 100 companies, with 12 well-known regional companies with Bell roots; the 12 companies included: Three companies spun off from Advanced Mobile Phone Service Ameritech Mobile Communications BellSouth Mobility Southwestern Bell Mobile Systems BellSouth Mobility DCS BellSouth Wireless Data CCPR Services d/b/a Cellular One of Puerto Rico and U. S. Virgin Islands Pacific Bell Wireless Pacific Bell Wireless Northwest SBC Wireless SNET Mobility Southwestern Bell WirelessSBC Wireless had operated in several northeast markets under the "Cellular One" brand, while BellSouth's wireless operations incorporated the former Houston Cellular. Cingular's lineage can be traced back to Advanced Mobile Phone Service, a subsidiary of AT&T created in 1978 to provide cellular service nationwide. AMPS was divided among the Regional Bell Operating Companies as part of the Bell System divestiture.
With the exception of Pacific Bell and BellSouth Mobility DCS, the digital network consisted of D-AMPS technology. The Pacific Bell and BellSouth Mobility DCS networks used GSM technology on the PCS frequency band. In October 2007, AT&T's president and chief executive officer Stan Sigman announced his retirement. Ralph de la Vega, group president-Regional Telecom & Entertainment, was named as president and CEO of AT&T Mobility. In February 2004, after a bidding war with Britain's Vodafone Plc Cingular announced that it would purchase its struggling competitor, AT&T Wireless Services, for $41 billion This was more than twice the company's trading value; the merger was completed on October 26, 2004. The combined company had a customer base of 46 million people at the time, making Cingular the largest wireless provider in the United States. AT&T Wireless was legally renamed New Cingular Wireless Services. Shortly after, new commercials were shown with the "AT&T" transforming into the Cingular logo, with the Cingular logo's text turned blue to acknowledge the change.
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AT&T Inc. is an American multinational conglomerate holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's largest telecommunications company, the second largest provider of mobile telephone services, the largest provider of fixed telephone services in the United States through AT&T Communications. Since June 14, 2018, it is the parent company of mass media conglomerate WarnerMedia, making it the world's largest media and entertainment company in terms of revenue; as of 2018, AT&T is ranked #9 on the Fortune 500 rankings of the largest United States corporations by total revenue. AT&T began its history as Southwestern Bell Telephone Company, a subsidiary of the Bell Telephone Company, founded by Alexander Graham Bell in 1880; the Bell Telephone Company evolved into American Telephone and Telegraph Company in 1885, which rebranded as AT&T Corporation. The 1982 United States v. AT&T antitrust lawsuit resulted in the divestiture of AT&T Corporation's subsidiaries or Regional Bell Operating Companies, resulting in several independent companies including Southwestern Bell Corporation.
In 2005, SBC purchased its former parent AT&T Corporation and took on its branding, with the merged entity naming itself AT&T Inc. and using its iconic logo and stock-trading symbol. In 2006, AT&T Inc. acquired BellSouth, the last independent Baby Bell company, making their joint venture Cingular Wireless wholly owned and rebranding it as AT&T Mobility. The current AT&T reconstitutes much of the former Bell System, includes ten of the original 22 Bell Operating Companies along with the original long distance division. AT&T can trace its origin back to the original Bell Telephone Company founded by Alexander Graham Bell after his patenting of the telephone. One of that company's subsidiaries was American Telephone and Telegraph Company, established in 1885, which acquired the Bell Company on December 31, 1899, for legal reasons, leaving AT&T as the main company. AT&T established a network of subsidiaries in the United States and Canada that held a government-authorized phone service monopoly, formalized with the Kingsbury Commitment, throughout most of the twentieth century.
This monopoly was known as the Bell System, during this period, AT&T was known by the nickname Ma Bell. For periods of time, the former AT&T was the world's largest phone company. In 1982, U. S. regulators broke up the AT&T monopoly, requiring AT&T to divest its regional subsidiaries and turning them each into individual companies. These new companies were known as Regional Bell Operating Companies, or more informally, Baby Bells. AT&T continued to operate long distance services, but as a result of this breakup, faced competition from new competitors such as MCI and Sprint. Southwestern Bell was one of the companies created by the breakup of AT&T Corp; the architect of divestiture for Southwestern Bell was Robert G. Pope; the company soon started a series of acquisitions. This includes the 1987 acquisition of Metromedia mobile business and the acquisition of several cable companies in the early 1990s. In the half of the 1990s, the company acquired several other telecommunications companies, including some Baby Bells, while selling its cable business.
During this time, the company changed its name to SBC Communications. By 1998, the company was in the top 15 of the Fortune 500, by 1999 the company was part of the Dow Jones Industrial Average. In 2005, SBC purchased AT&T for $16 billion. After this purchase, SBC adopted the better-known AT&T name and brand, with the original AT&T Corp. still existing as the long-distance landline subsidiary of the merged company. The current AT&T claims the original AT&T Corp.'s history as its own, though its corporate structure only dates from 1983. It retains SBC's pre-2005 stock price history, all regulatory filings prior to 2005 are for Southwestern Bell/SBC, not AT&T Corp. In September 2013, AT&T Inc. announced it would expand into Latin America through a collaboration with América Móvil. In December 2013, AT&T announced plans to sell its Connecticut wireline operations to Stamford-based Frontier Communications. AT&T purchased the Mexican carrier Iusacell in late 2014, two months purchased the Mexican wireless business of NII Holdings, merging the two companies to create AT&T Mexico.
In July 2015, AT&T purchased DirecTV for $48.5 billion, or $67.1 billion including assumed debt, subject to certain conditions. AT&T subsequently announced plans to converge its existing U-verse home internet and IPTV brands with DirecTV, to create AT&T Entertainment. In an effort to increase its media holdings, on October 22, 2016, AT&T announced a deal to buy Time Warner for $108.7 billion. AT&T owns a 2% stake in Canadian-domiciled entertainment company Lionsgate. On July 13, 2017, it was reported that AT&T would introduce a cloud-based DVR streaming service as part of its effort to create a unified platform across DirecTV and its DirecTV Now streaming service, with U-verse to be added soon. In October 2018, it was announced that the service Is set to launch in 2019On September 12, 2017, it was reported that AT&T planned to launch a new cable TV-like service for delivery over-the-top over its own or a competitor's broadband network sometime next year. On November 20, 2017, Assistant Attorney General Makan Delrahim filed a lawsuit for the United States Department of Justice Antitrust Division to block the merger with Time Warner, saying it "will harm competition, result in higher bills for consumers and less innovation."
In order for AT&T to acquire Time Warner, the Department of Justice stated that the company must