Cingular has stopped selling the V600 because of an RF conflict? apparantly with bluetooth which can degrade signals in one of the 4-communication bands
(800 mhz). Other services don't use the affected bands and are still selling the phone. (It would be my first choice). V400 isn't affected.
Source: Chicago Tribune business section; Cingular and I note Best Buy sells the V600 along with CNET
retailers.
I want to know if it is a good phone. cause i need a new one.

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