Originally posted by: Zenmervolt
Originally posted by: Captante
GSM is digital-only & is a newer technology then CDMA, but unless you plan on using your phone outside of the USA it won't do much to help you & will leave you with no coverage at all if/when you enter an are that only has analog service available .. not all CDMA phones have analog anymore either but most still do.
As for providers, I've had cell-phones since the only kind you could get were the ones hard-wired into your car & although Verizon isn't the cheapest, they do provide by far the best coverage overall nationwide (speaking from experience) and are also top-rated by Consumer-reports... Cingular is overall second best, but its a distant second & really only worth it if you need GSM.
Wrong.
CDMA is
TWO YEARS NEWER than GSM. GSM is still partially TDMA (TDMA being the very old system used in analogue setups and is not to be confused with CDMA) based. CDMA also has higher call security (proof-of-concept intercepts for GSM exist, no-one has yet managed to intercept a CDMA signal from the air), more calls can be handled per CDMA tower, and more bandwidth is available for CDMA both for voice transmission (i.e. higher audio fidelity) and for data transmission. The "Dual Mode" CDMA phones that allow analogue transmission do not use CDMA in analogue mode. CDMA has no analogue abilities, the phone has to switch to an entirely different transmitting mode that is un-related to CDMA.
The benefits to GSM are these: It's cheaper to license and therefore reduces overhead for the provider and it is legally mandated in much of Europe so it makes a "world phone" possible.
CDMA is both newer and technologically superior. However, in most instances the technical superiority of CDMA is irrelevant to the end user and the cost savings of GSM combined with its legally imposed monopoly in Europe serve to make it useful both to the bargain-basement group and to the world-traveller group.
ZV