T mobile blackberry wireless uma service is a sham. I purchased the blackberry curve from t-mobile for one reason only, they were the only company that offered an option where you could make calls via wireless through their UMA feature. As i travel internationally frequently and this service was recommended to me by someone else that had been using it, i purchased it. This was in March of 2008. It worked fine for several months. I am in 20 inches away from my wireless router most of the day. All of a sudden, I start getting very large... read full review »