I'll stand by my 1st paragraph as correct as in my travels around the state, many of the install techs I converse with on site use all of the mentioned & all my work docos state CDMA currently uses the 850 MHz freq hence the rapid rollout of the 3G 850 (utilising existing infrastructure)ie, no need to replace feeders, dishes, antennas etc.
I goofed with the 1700 MHz freq on GSM, I meant to say 1800/1900/2100 though 2100 MHz appears to be stated when talking GSM technology.
You're correct in that the existing 3G mobiles (3G 2100 MHz)will not operate on the 3G 850 network as they're completely different animals.
Buyers beware..my advice is to anyone who asks, if you put your car into 5th gear, stay away from digital (for coverage reasons) & select CDMA - to be replaced with 3G 850. Who'd wanna be a salesman ?
I goofed with the 1700 MHz freq on GSM, I meant to say 1800/1900/2100 though 2100 MHz appears to be stated when talking GSM technology.
You're correct in that the existing 3G mobiles (3G 2100 MHz)will not operate on the 3G 850 network as they're completely different animals.
Buyers beware..my advice is to anyone who asks, if you put your car into 5th gear, stay away from digital (for coverage reasons) & select CDMA - to be replaced with 3G 850. Who'd wanna be a salesman ?