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Top message:  looking for help and information. by nophonecartel   Jun 11, 2011, 11:13 PM

Replying to:  Re: Prepaid already does that by nophonecartel   Jun 12, 2011, 3:30 PM

Greediness, I think

by Lord Azrael    Jun 19, 2011, 2:45 PM

Our four major networks are not fully compatible. Verizon and Sprint use CDMA technology for 3g, but Verizon uses LTE for 4g, while Sprint uses WiMax, which makes it harder on manufacturers to do that; however, you will note that most models are offered for both carriers if they're 3g.

T-Mobile and AT&T, while both using GSM and WCDMA technology, use different bandwith for data, which causes some of the phones of the one to be incompatible with the other.

IMO, they have done so this way to make sure they have their own, signature network and to enjoy the exclusivity for their devices.

However, you'll find that some phone models, like the LG Optimus and most Blackberries, has managed to get around these quirks.

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