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Nextel affected the cellular phone market in several ways. It was the first company to successfully provide unlimited calling plans to a large customer base. Nextel was the first company to implement a nationwide push-to-talk system similar to a walkie-talkie, marketed as DirectConnect. Unlike other cellular networks, the Nextel network operated in the Specialized Mobile Radio band, and Nextel ...
As a side effect of this "re-banding," however, Nextel's iDEN network would lose valuable 800 MHz spectrum, causing the network to face significant capacity challenges. Simultaneously, Boost Mobile, a prepaid MVNO that operated on Nextel's network, was beginning to skyrocket in popularity, placing an even greater burden on the iDEN system. This ...
Communication problems and successes played an important role during the September 11 attacks in 2001 and their aftermath. Systems were variously destroyed or overwhelmed by loads greater than they were designed to carry, or failed to operate as intended or desired. U.S. President George W. Bush talks on a STU-III secure telephone as he watches television coverage of the September 11 attacks ...
AT&T will shut down its 3G wireless network Tuesday, the first step toward the end of 3G service. How will this affect you?
AT&T is scheduled to be the first carrier to shut down its 3G network on Feb. 22. T-Mobile will shut down its 3G network by summer and Verizon in December. The home-alarm industry has asked the ...
On April 19, 2011, Sprint Nextel announced it agreed to pay at least $1 billion to Clearwire so it can operate on the 4G WiMAX network through 2012, and a later agreement, announced in December 2011, specified terms allowing Sprint, its subsidiaries, and wholesale customers to continue having access to the Clearwire 4G WiMAX network through 2015.
NII Holdings, Inc. (formerly Nextel International) was an American holding company that, through its subsidiary Nextel Telecomunicações Ltda., provided mobile communications services under the Nextel brand in Latin America. [4] NII last operated 3G UMTS / HSDPA and 4G LTE networks in Brazil, and also operated an iDEN network there until its ...
Cellular network standards and generation timeline. This is a comparison of standards of wireless networking technologies for devices such as mobile phones. A new generation of cellular standards has appeared approximately every tenth year since 1G systems were introduced in 1979 and the early to mid-1980s.