Originally Posted by cnahas
I was making phone calls from France to the US using UMA. Was careful to turn the mobile network off. T-Mobile charged me roaming (a fair amount). I was not aware there would be any roaming charges. T-Mobile say the charges are accurate and they cannot guarantee when there would be none! Any Ideas?
Can you give us more detail? How much was the per minute charge and how are the calls showing on the bill?
Is there a (U) next to them?
Technically they would be able to tell where you used UMA from the IP, or by the cell phone pinging the French network before and after the call. But to date Tmobile hasn't charged roaming for UMA calls. This would be something new.