SPOTLIGHT: Cellular-WiFi wedding

Matthew Miller, a columnist for and ZDNet, was asked by T-Mobile to join an early test of a service that combines the ubiquity of cellular networks with the flat pricing for unlimited calls available with some Internet-based phone services. The new service, [email protected], allows a subscriber to place calls from a mobile phone using cellular and WiFi networks (important: subscribers may use a WiFi network whether or not the home wireless network or a hot spot operated by T-Mobile). Miller's verdict: "In my own testing, I found the service a reasonable first draft of what could become a reliable alternative to both all-cellular networks and an emerging set of WiFi-only phones. The marriage might even save money--for both T-Mobile and its subscribers. Carrying calls over WiFi networks costs the company as little as 20 percent of the expense of calls handled on a cellular network." Report

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