Quote:
Originally Posted by SmoothRunnings
Quad band allows the phone the work on both networks, example Verizon and or AT&T. If the device only works on GSM network that supports Edge and 3G only, its not quad band.
The iPhone 3G and 3GS works on GSM/CDMA networks, my friend in Colombia South America has his iPhone with a dual Simm on both networks as cell services is pretty expensive.
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Wrong.
Quad band refers to the frequency bands and not the networks. A Quad-Band phone supports all four major GSM frequency bands 850 / 900 / 1800 / 1900 making it compatible with all major GSM networks worldwide.
A CDMA device is dual band and operates on CDMA 850 and CDMA 1900.
I have never heard of an iPhone working on CDMA networks. AFAIK it is totally impossible as they are two totally different and non-compatible technologies. At least here in the US, the iPhone is GSM only and cannot in way, shape or function, work on a CDMA network.