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Unefón
Unefon is a Mexican mobile telecommunications brand used by AT&T Mexico, a subsidiary of AT&T Inc., used for prepaid products. The company was partially owned by Grupo Salinas and Mexican media group Televisa, and its network was CDMA only, using no analog base stations. Starting 2010, Unefon started to use GSM The Global System for Mobile Communications (GSM) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation ( 2G) digital cellular networks used by mobile devices such ... technology and started sharing Iusacell stations and network. Telecommunications companies of Mexico Mobile phone companies of Mexico AT&T subsidiaries {{telecom-company-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grupo Salinas
Grupo Salinas is a corporate conglomerate formed in 2001 by several Mexican companies. The group consists of: * TV Azteca - television and radio network * Grupo Elektra - products include finance, home appliances, consumer electronics, furniture, motorcycles, mobile phones, computers and extended warranties * Mazatlán F.C.- football club * Telecosmo - internet service provider * Italika - motorcycle manufacturer Each of the Grupo Salinas companies operates independently, with its own management and board of directors. History Company history begins with a store called "Salinas y Rocha" founded in 1906 in Monterrey. In 1950, Grupo Elektra began as a radio factory. Two years later, the company began manufacturing television sets and increased its workforce to 70 employees. Elektra began selling products directly to consumers in 1954. In 1957, Elektra retail stores incorporated credit programs. By 1968, Elektra had 12 stores in the region and by 1987, 59 stores. Elektra Group b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AT&T Mexico
AT&T Mexico (formerly known as Iusacell and Nextel Mexico), also known as AT&T Mexico Wireless and AT&T Mexico Mobility, is a Mexican mobile telephone operator and subsidiary of AT&T. AT&T Mexico is headquartered in Mexico City. Its mobile network is available in 90% of Mexico, serving 13% of the Mexican wireless market. AT&T is the third-largest wireless carrier in Mexico, with 20.362 million subscribers as of December 2021. Services The company provides cellular services reaching about 90% of Mexico's population. The company also offers local and long-distance telephony, messaging services, mobile television and wireless broadband services. History AT&T Mexico was originally Iusacell prior to its acquisition by AT&T. Bell Atlantic (now Verizon Communications) and Vodafone Group together acquired 74.5% of the company in 2001 from the Peralta family, which founded Iusacell in 1987. But following Iusacell's default on debts, the two companies in 2003 sold their stake to Ricard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications
Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that feasible with the human voice, but with a similar scale of expediency; thus, slow systems (such as postal mail) are excluded from the field. The transmission media in telecommunication have evolved through numerous stages of technology, from beacons and other visual signals (such as smoke signals, semaphore telegraphs, signal flags, and optical heliographs), to electrical cable and electromagnetic radiation, including light. Such transmission paths are often divided into communication channels, which afford the advantages of multiplexing multiple concurrent communication sessions. ''Telecommunication'' is often used in its plural form. Other examples of pre-modern long-distance communication included audio messages, such as coded drumb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico City
Mexico City ( es, link=no, Ciudad de México, ; abbr.: CDMX; Nahuatl: ''Altepetl Mexico'') is the capital and largest city of Mexico, and the most populous city in North America. One of the world's alpha cities, it is located in the Valley of Mexico within the high Mexican central plateau, at an altitude of . The city has 16 boroughs or ''demarcaciones territoriales'', which are in turn divided into neighborhoods or ''colonias''. The 2020 population for the city proper was 9,209,944, with a land area of . According to the most recent definition agreed upon by the federal and state governments, the population of Greater Mexico City is 21,804,515, which makes it the sixth-largest metropolitan area in the world, the second-largest urban agglomeration in the Western Hemisphere (behind São Paulo, Brazil), and the largest Spanish language, Spanish-speaking city (city proper) in the world. Greater Mexico City has a gross domestic product, GDP of $411 billion in 2011, which makes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico ''''. . making it the world's 13th-largest country by are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AT&T International
AT&T Inc. is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's largest telecommunications company by revenue and the third largest provider of mobile telephone services in the U.S. , AT&T was ranked 13th on the ''Fortune'' 500 rankings of the largest United States corporations, with revenues of $168.8 billion. During most of the 20th century, AT&T had a monopoly on phone service in the United States. The company began its history as the American District Telegraph Company, formed in St. Louis in 1878. After expanding services to Arkansas, Kansas, Oklahoma and Texas, through a series of mergers, it became Southwestern Bell Telephone Company in 1920, which was then a subsidiary of American Telephone and Telegraph Company. The latter was a successor of the original Bell Telephone Company founded by Alexander Graham Bell in 1877. The American Bell Telephone Company formed the American Telepho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AT&T Inc
AT&T Inc. is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's largest telecommunications company by revenue and the third largest provider of mobile telephone services in the U.S. , AT&T was ranked 13th on the ''Fortune'' 500 rankings of the largest United States corporations, with revenues of $168.8 billion. During most of the 20th century, AT&T had a monopoly on phone service in the United States. The company began its history as the American District Telegraph Company, formed in St. Louis in 1878. After expanding services to Arkansas, Kansas, Oklahoma and Texas, through a series of mergers, it became Southwestern Bell Telephone Company in 1920, which was then a subsidiary of American Telephone and Telegraph Company. The latter was a successor of the original Bell Telephone Company founded by Alexander Graham Bell in 1877. The American Bell Telephone Company formed the American Teleph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Televisa
Grupo Televisa is a Mexican multimedia mass media company. A major Latin American mass media corporation, it often presents itself as the largest producer of Spanish-language content. In April 2021, Televisa and Univision Communications announced that they had proposed a merger between Televisa's media and entertainment assets with Univision, which would form a new company to be known as TelevisaUnivision. The transaction was completed on January 31, 2022, with Televisa owning a 45% stake of the company. Company History Since its beginning, the company has been owned by the Azcárraga family. The company has been led and owned by three generations of Azcárraga; each has marked an era for the company and, until October 2017, each had passed the ownership of the company to his son upon his death. Emilio Azcárraga Vidaurreta (1955–1972) Grupo Televisa was founded in 1955 as Telesistema Mexicano, linking Mexico's first three television stations: XHTV-TV (founded in 1950), XEW- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CDMA
Code-division multiple access (CDMA) is a channel access method used by various radio communication technologies. CDMA is an example of multiple access, where several transmitters can send information simultaneously over a single communication channel. This allows several users to share a band of frequencies (see bandwidth). To permit this without undue interference between the users, CDMA employs spread spectrum technology and a special coding scheme (where each transmitter is assigned a code). CDMA optimizes the use of available bandwidth as it transmits over the entire frequency range and does not limit the user's frequency range. It is used as the access method in many mobile phone standards. IS-95, also called "cdmaOne", and its 3G evolution CDMA2000, are often simply referred to as "CDMA", but UMTS, the 3G standard used by GSM carriers, also uses "wideband CDMA", or W-CDMA, as well as TD-CDMA and TD-SCDMA, as its radio technologies. It can be also used as a channel or m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Analog Television
Analog television is the original television technology that uses analog signals to transmit video and audio. In an analog television broadcast, the brightness, colors and sound are represented by amplitude, instantaneous phase and frequency, phase and frequency of an analog signal. Analog signals vary over a continuous range of possible values which means that Noise (electronics), electronic noise and interference may be introduced. Thus with analog, a moderately weak signal becomes Noise (video), snowy and subject to interference. In contrast, picture quality from a digital television (DTV) signal remains good until the signal level drops below digital cliff, a threshold where reception is no longer possible or becomes intermittent. Analog television may be wireless (terrestrial television and satellite television) or can be distributed over a cable network as cable television. All broadcast television systems used analog signals before the arrival of DTV. Motivated by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications Companies Of Mexico
Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that feasible with the human voice, but with a similar scale of expediency; thus, slow systems (such as postal mail) are excluded from the field. The transmission media in telecommunication have evolved through numerous stages of technology, from beacons and other visual signals (such as smoke signals, semaphore telegraphs, signal flags, and optical heliographs), to electrical cable and electromagnetic radiation, including light. Such transmission paths are often divided into communication channels, which afford the advantages of multiplexing multiple concurrent communication sessions. ''Telecommunication'' is often used in its plural form. Other examples of pre-modern long-distance communication included audio messages, such as coded drum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobile Phone Companies Of Mexico
Mobile may refer to: Places * Mobile, Alabama, a U.S. port city * Mobile County, Alabama * Mobile, Arizona, a small town near Phoenix, U.S. * Mobile, Newfoundland and Labrador Arts, entertainment, and media Music Groups and labels * Mobile (band), a Canadian rock band * Mobiles (band), a 1980s British band Other uses in music * ''Mobile'' (album), a 1999 album by Brazilian Paulinho Moska * "Mobile" (song), a 2003 song by Avril Lavigne from ''Let Go'' * "Mobile", a song by Gentle Giant from the album ''Free Hand'' Other uses in arts, entertainment, and media * Mobile (sculpture), a kinetic sculpture constructed to take advantage of the principle of equilibrium * ''Mobile'' (TV series), a British ITV drama * "Mobile", a short story by J. G. Ballard, later renamed "Venus Smiles" * Mobile, a feature of the game ''GunBound'' * ''Mobile Magazine'', a publication on portable electronics Military and law enforcement * ''Garde Mobile'', historic French military unit * Mobile Briga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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