Originally posted by kenny
That depends where you are in the US. Besides, if the T86i was CDMA, it couldn't really be a world phone, could it?
If they had a CDMA version then it could be a "US phone". dont care about the world.
Originally posted by kenny
That depends where you are in the US. Besides, if the T86i was CDMA, it couldn't really be a world phone, could it?
AT&T is TDMA. Not GSM. Sorry. They're considering switching to GSM at the moment.Originally posted by kenny
think you're ignoring the fact that T-mobile is not the only GSM provider in the US. There's also Cingular and AT&T (as well as quite a number of others). Having a look 'round Cingular's site reveals a map titled "map_nation_dcs_gsm_09_27_02.gif":
map
This is probably a cumulative map, including all GSM providers in the US. On GSM, the concept of roaming is different than CDMA/TDMA. In fact, when I was on Sprint, there were a number of places, along interstates, where the phone would drop to analog roaming. This is a particularly big beef I have with Sprint. If you come off their CDMA network, you're running analog.
again, falseThis is because all the phones they offer, while being technically capable of roaming on other CDMA networks, are lobotomized so that they will only talk to Sprint's CDMA network. Because of this exclusionary behaviour, Verizon phones can't roam on Sprint's network either. So, although CDMA coverage looks good, you get burned really quickly on the lack of provider interoperability.
AGAIN, not so. GSM may be more popular overseas, but, for example, the entire chinese government signed a 2 billion dollar contract with a CDMA provider to handle all wireless telacom in China.With GSM, most/all of the US providers are working together to ensure a much more seamless picture. I can 'roam' on AT&T, T-Mobile, Powertel (Atlanta), whatever. I'm not locked in to my provider's network. As a result, I really have yet to find anywhere in my travels that puts me completely off the GSM networks in the US (yes, there are reception holes here and there, but general coverage is generally good). Your mileage will, naturally, vary.
Of course, there's the question of what the rest of the world is using, and where can I take my phone and have it work. GSM is really the only choice if I want to do that (and I do do that). And, let's not forget that the snazzy new 3G services that are being made available now are based on being on GSM/GPRS networks. Verizon/Sprint may offer their own versions of 3G, but they're swimming upstream against what is being done in the rest of the mobile industry.
snip
Given that much of the rest of the planet is doing GSM very widely, and that it doesn't force the same kinds of vendor lock-in that CDMA/TDMA has, my money is on GSM being the TCP/IP of the mobile industry over the next 5 years or so... [/B]
Actually, that CDMA map is 100% Verizon CDMA. The actuall coverage of CDMA over the usa is almost 100%.Originally posted by dixonbm
Also the CDMA map you posted also includes alot of TDMA. See the fine print to the right of the map. Preferred roaming list required. So in essence you may still have a signal but no digital, no voicemail, and sometimes your calls don't even come into your phone. (based on my parents experience. A more truthful CDMA map would be sprint's map which doesn't include most rural areas.
Also, lets not forget that both Cingular and AT&T are switching to GSM. So the coverage I'll admit is lacking however with those other two companies behind the technology it shan't be for long. [/B]
Originally posted by AdmiralAK
the 411
Originally posted by dixonbm
Also the CDMA map you posted also includes alot of TDMA.
Originally posted by ~~NeYo~~
The What?! ...Sorry Admiral, i am English, forgive me .... i'll just continue to chant 'knackered' 'n' stuff ... Cbut do tell me, what is 411 ... and if it does mean "info" like i assume, why the hell is it called "411"
NeYo