I have been using my X3 with my Treo 650 for almost a year without major problems. Recently, I upgraded to 700p and had no problem using BT with my X3, however yesterday I have noticed this: My Treo does connect to X3 and my favorites do transfer, however my voice calls go through Treo and not BMW X3 stereo. I have tried to re-pair it after deleting connection to X3, but no luck. Is anybody else experienced this? what can I do to try to solve this?