AT&T compatibility

[edskii]

Hello everyone! I'm wondering will this device work with AT&T service since it's just a triband phone, and, afaik, AT&T uses 850MHz as their primary frequency for GSM calls (depends on location) in NYC area.

[someone1234]

Coverage maps are here:

http://www.gsmworld.com/roaming/gsminfo/cou_us.shtml

Specifically the 1900Mhz map is here and you can zoom in to your area and see: http://www.gsmworld.com/cgi-bin/ni_map.pl?cc=us&net=be

[You can probably also find them some place on the AT&T website.]

Be aware tho that the diamond only does 3G at 900/2100, but AT&T use 850/1900. That means you won't be able to use 3G capabilities on AT&T anywhere.

I would either wait for the american version, or buy the 2G one they're selling in india for ~200$ less.

[edskii]

Thanks, man! Maybe i'll look at T-Mobile plans, looks like device will work with them :)

[someone1234]

Well looking at the page it looks like T-Mobile have even less 1900 coverage (GSM). I don't know their current 3G situation, but they will be/are using 1700Mhz for 3G, which the diamond can't handle either :(