Hi, I have a plantronics headset bluetoothed to my iphone4. All works well under normal conditions. I've tried the iphone4 3cx client and works well with the normal earpiece (so they call it). But when I try to switch to the bluetooth headset, it works sometimes, sometimes it's completely blank. Is there a way to start off each call with the bluetooth headset by default? And is any one facing the same issue?