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Chinese mobile phones manufacturing suppliers and
cellular phones vendors in
China Business Guide qualified mobile phones manufacturing, cellular suppliers, industrial
phones vendors to support wholesale mobile phones business in the USA |
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A MOBILE TELEPHONE or cellular telephone ("mobile phone" or "cell phone") is a long-range, portable electronic device used for mobile communication. In addition to the standard voice function of a telephone, current mobile phones can support many additional services such as SMS for text messaging, email, packet switching for access to the Internet, and MMS for sending and receiving photos and video. Most current mobile phones connect to a cellular network of base stations (cell sites), which is in turn interconnected to the public switched telephone network (PSTN) (the exception is satellite phones). WHO INVENTED THE MOBILE PHONES SYSTEM?: In 1970, Bell Labs invented such a "call handoff" feature, which allowed mobile-phone users to travel through several cells during the same conversation. Motorola is widely considered to be the inventor of the first practical mobile phone for handheld use in a non-vehicle setting. Using a modern, if somewhat heavy portable handset, Motorola manager Martin Cooper made the first call on a handheld mobile phone on April 3, 1973. The first commercial cellular network was launched in Japan by NTT in 1979. |
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The first "modern" network technology on digital 2G (second generation) cellular technology was launched by Radiolinja (now part of Elisa Group) in 1991 in Finland on the GSM standard which also marked the introduction of competition in mobile telecoms when Radiolinja challenged incumbent Telecom Finland (now part of TeliaSonera) who ran a 1G NMT network. A decade later, the first commercial launch of 3G (Third Generation) was again in Japan by NTT DoCoMo on the WCDMA standard. Until the early 1990s, most mobile phones were too large to be carried in a jacket pocket, so they were typically installed in vehicles as car phones. With the miniaturization of digital components, mobile phones have become increasingly handy over the years |
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Italian mobile phones suppliers cellular manufacturing vendors and phones system communications suppliers and mobile phones distributors are listed in Italian Business Guide the perfect Gateway to work with USA Communications Suppliers direct from US. Usa communications Manufacturing source to the US and the worldwide business |
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ITALIAN PHONES MANUFACTURING |
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MAIN MOBILE PHONES MANUFACTURERS. The mobile phone manufacturers can be grouped into two. The top five are available in practically all countries and comprise about 75% of all phones sold. A second tier of small manufacturers exists with phones mostly sold only in specific regions or for niche markets. The top five in order of market share are Nokia, Motorola, Samsung, Sony Ericsson and LG |
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MAIN MOBILE PHONES IN THE MARKET: Nokia Corporation currently is the world's largest manufacturer of mobile telephones, with a global device market share of approximately 36% in Q1 of 2007. Other mobile phone manufacturers include Apple Inc., Audiovox (now UT Starcom), Benefon, BenQ - Siemens, High Tech Computer Corporation (HTC), Fujitsu, Kyocera, LG Mobile, Mitsubishi, Motorola, NEC, Neonode, Panasonic (Matsushita Electric), Pantech Curitel, Philips, Research In Motion, Sagem, Samsung, Sanyo, Sharp, Siemens, Sierra Wireless, SK Teletech, Sonim Technologies, Sony Ericsson, T&A Alcatel,Toshiba, and Verizon. |
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Phones manufacturers cellular manufacturing suppliers, phones vendors and phones system communications suppliers, mobile phones distributors in Italian Business Guide ready to support your Communications business from Miami Florida, communications system Manufacturing source to the US and the worldwide business |
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MOBILE PHONES TECHNOLOGY Mobile phones and the network they operate under vary significantly from provider to provider, and country to country. However, all of them communicate through electromagnetic radio waves with a cell site base station, the antennas of which are usually mounted on a tower, pole or building. The phones have a low-power transceiver that transmits voice and data to the nearest cell sites, usually not more than 5 to 8 miles (approximately 8 to 13 kilometers) away. When the mobile phone or data device is turned on, it registers with the mobile telephone exchange, or switch, with its unique identifiers, and will then be alerted by the mobile switch when there is an incoming telephone call. The handset constantly listens for the strongest signal being received from the surrounding base stations. As the user moves around the network, the mobile device will "handoff" to various cell sites during calls, or while waiting (idle) between calls it will reselect cell sites. Cell sites have relatively low-power (often only one or two watts) radio transmitters which broadcast their presence and relay communications between the mobile handsets and the switch. |
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MOBILE NEWS SERVICES are expanding with many organizations providing "on-demand" news services by SMS. Some also provide "instant" news pushed out by SMS. Mobile telephony also facilitates activism and public journalism being explored by Reuters and Yahoo. Also companies like Monster are starting to offer mobile services such as job search and career advice. The total value of mobile data services exceeds the value of paid services on the internet, and was worth 31 B dollars in 2006 (source Informa). The largest categories of mobile services are music, picture downloads, videogaming, adult entertainment, gambling, video/TV |
Cellular services suppliers mobile phones network vendors and phones system communications suppliers and mobile phones distributors are listed in Italian Business Guide the perfect Gateway to work with USA Communications Suppliers direct from US. Usa communications Manufacturing source to the US and the worldwide business |
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China Business Guide list of chinese manufacturing, suppliers, vendors and professional companies from China qualified to support directly your business at manufacturing pricing and customer service, China beauty care, chemical industry, clothing, fashion apparel, machinery, industrial supplies, electronics, furniture, automotive spare parts, engineering... |
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The China Business Guide engineers work hard to support the China, USA, Italian manufacturing and industrial suppliers in China, Italy, USA worldwide distribution companies creating business to business relationship. Through the China women apparel and lingerie manufacturing, Chinese electronics China suppliers, Beijing women lingerie clothing suppliers, Shanghai fashion shirts China manufacturing, industrial chemical China suppliers, Chinese real estate and chinese vacations, China business equipments Chinese suppliers, health care web pages to our business goal. Made in China, women apparel, electronics, lingerie, fashion, China clothings manufacturing, vendors and business suppliers listed in China Business Guide offered on our site are the best apparel, fashion, lingerie, industrial, electronics, vacations, leather furniture manufacturing products as Chinese old manufacturing tradition. Products made in China to Italy, USA, England, Ireland, Norway, Russia, Canada, Japan, Korea, Kuwait, China, Japan, Australia, Dubai, China, Germany, Saudi Arabia, Russia, Denmark, Norway, Taiwan, Australia, England, Germany, Austria, Mexico, Brasil, Saudi Arabia, Bahrain, Canada, New Zeland, Italy, Austria, France, Holland, Spain, Scotland, Sweden,... and worldwide business to business wholesale distribution market |
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