EXACTLY, don't know which provider your with,but only one allows both data and voice seemlessly (US). Can you surf the net and talk at the same time? Don't get me wrong would love to have this feature,but the way my carrier prioritizes voice and data I don't see this happening. there is a another thread on UMA functionality of our phone and wether its a software issuse versus a hardware.
I believe that data stream is put on hold when a voice call comes thru and when the call is ended you can resume your data call, is that correct?