Wi-Fi may carry many voice calls within the next few years, but the technology required to make those calls is still young in some ways.
Google has laid the groundwork for its own cellular service by buying capacity on the networks of Sprint and T-Mobile USA, according to news reports.
Sprint's WiMax network, launched in 2008 as the first commercial 4G system in the U.S., will finally shut down in November 2015.
Sprint has reached a deal to buy T-Mobile US for about US$50 billion, according to news reports on Wednesday.
Sprint Nextel made a net loss of US$1.6 billion for the second quarter, swollen by the cost of shutting down its Nextel wireless network, but the company is more optimistic about future profitability.
LTE is simultaneously being pushed forward on several fronts, and the result for users will be faster networks, better coverage and the ability to access networks while travelling abroad.
The battle of takeovers among Sprint Nextel, Dish Network, Clearwire and SoftBank has heated up as Clearwire's board recommended shareholders accept Dish's bid instead of Sprint's.
Froyo is coming.
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