See if T-Mobile has service at your site -
login. If T-Mobile has service....
Get a ToGo Phone/SIM combo for ~$30 at Target/WalMart. Pop the SIM into your BB and use as normal. Buy minutes at
Cheap International Prepaid Phone Cards (cheaper than refilling at T-Mobile) and use it while on site.
No ETF from Cingular. But NO Data/BB function..but at least your phone would work...