Mobile Phones - GSM vs CDMA vs PCS - Help required
Slightly off the track of the internet, but can anyone point me to the right information.
I need an explanation of the differences in the different mobile phone technologies, and an understanding of where in the world they are in use so I can buy a phone with the max possible roaming coverage.
I am familiar with dual band GSM, works OK throughout Europe and quite a bit of Asia, Australia and Africa. Tri-band GSM is supposed to extend into USA, but not sure of coverage.
But no GSM coverage in Korea or Japan, for example.
Is there anything that spans the world?