TELECOM Digest OnLine - Sorted: T-Mobile to Launch Mixed-Signal Phone

T-Mobile to Launch Mixed-Signal Phone

Monty Solomon (
Sat, 7 Oct 2006 00:30:08 -0400

NEW YORK, Oct 07, 2006 (XFN-ASIA via COMTEX News Network) --

T-Mobile USA is set to launch by year's end a new breed of mobile
phones that can pass live phone calls between cellular and Wi-Fi
networks, a top executive told The Associated Press on Friday.

Robert Dotson, chief executive of the U.S. subsidiary of Deutsche
Telekom AG, declined to disclose the specific market where T-Mobile
planned to introduce the technology, known as UMA or Unlicensed Mobile

But he did say it would likely be "a city near and dear to our
hearts," a likely reference to the company's home city of Seattle.

UMA is designed to hand off calls without interruption from a cell
network to a Wi-Fi router, or vice versa. So if a user arrives home
while talking on a cell phone and the handset detects a Wi-Fi
broadband connection in the house, the call is automatically switched
to the wireless Internet signal.

The only difference is that the call is then transmitted using VoIP,
or Voice over Internet Protocol, the technology used by Internet phone
companies such as Vonage Holdings Corp.


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