China Telecom Logo — China Telecom ( Chunghwa Telecom ) is the incumbent telephone from China . In 1999 the company was divided by the Ministry of Information Industry of the four operators in order to introduce competition and encourage the building of a more advanced infrastructure.

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China Telecom serves 67% of the market for fixed telephony and data. Owns 80% of the network of fiber optics . Most competitors offer services over the fiber infrastructure of China Telecom. In 2001 sold 30% of its shares to the public to raise capital to finance expansion. More

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China Unicom Logo — China Unicom Ltd is the second largest mobile phone from China , also provides fixed telephone service. Their network is based on the European standard GSM . It has 96.06 million subscribers. It is one of the largest operators in the world. China Unicom also has the second largest data network in China. Networks of Great Wall (standard CDMA ) and Mobile Telecommunications Century formerly owned by the military forces were transeferidas to China Unicom. To help you gain market share, the government allowed the price Unicom to 10% cheaper than China Mobile . The other advantage on China Unicom Mobile is not required to provide service in rural areas.

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In January 2011 the company Telefónica strengthened their strategic alliance through a new share exchange. More

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Yoigo Logo — Telstra (formerly Xfera ) is the trade name under which it operates Xfera Móviles SA , the fourth largest wireless digital in Spain . Telstra has licensed the technology network to GSM / 2G and UMTS / 3G, and an agreement of roaming to use national GSM and UMTS Movistar .

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Although commercial release occurred in December 2006, the company was founded in 2000 and was in principle a whooping historia.Yoigo closed the year 2011 with 3,039,000 customers. More

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Nortel Logo — Nortel Networks Corporation formerly known as Northern Telecom Limited and abbreviated as Nortel, is a multinational company that produces hardware, software and services for telecommunications. It is headquartered in Toronto, Canada. In June 2009 the company announced it would cease operations and sell all its business units.

In 1895, Bell Telephone Company of Canada decided to privatize one of its product divisions built phones for sale to other companies as well as other devices such as fire alarms or equipment anti alarm installed on the street to contact the police or the fire. More

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Alcatel-Lucent Logo — Alcatel-Lucent is a multinational result of the merger of the company French Alcatel and U.S. Lucent Technologies. The company provides hardware , software and services to providers of telecommunications and business. Alcatel-Lucent sells network equipment and mobile telephony, data networks and video distribution and television.

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Some of his most famous pieces of hardware in the field of public communications are Multiplexers ADSL , used for access to Internet of high speed, taking approximately one third of the world market DSLAM existing in 2005 . Alcatel has contracted since 2004 an agreement with Microsoft to create infrastructure for IPTV over DSL to ofertarlas providers of telecommunications services. Alcatel is also a world leader in systems for optical communications , especially when it comes to submarine links . More

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Idea Cellular Logo — Idea Cellular is an Indian mobile operator with operations in all 22 districts of India Tel. It is the third largest mobile company in India on GSM base behind Airtel and Vodafone Essar . The company started in 1995 as a joint venture of Tatas , Aditya Birla Group and AT & T by merging “‘Wings Cellular'” (active in Madhya Pradesh , Uttar Pradesh , Rajasthan ) and Tata Cellular and Birla AT & T Communications .

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Originally Idea only a very limited GSM network in India, but could extend through the 2004 made ​​acquisition of Escotel its mobile network to a pan-India network and is now also active in West Bengal , Maharashtra , Goa , Gujarat , Andhra Pradesh , Madhya Pradesh , Chhattisgarh , Uttar Pradesh , Haryana , Kerala , Rajasthan and Delhi . The company distributes its products through the “Idea n ‘U’ shops.

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