Ok, I tried my friend's VMX100. When I connect it- it says that device was connected (blue icon in systray shows that too). When I actually try to call- there is no sound. After some magic tricks (haven't figured out yet- restarting the phone, headset, switching headset on and off during call) it starts working- I can hear and can be heard. But after sometime (in waiting mode) I try to call and now I cannot hear anything.
This Bluetooth works fine on my friend's Xpressmusic5800 and my old N81. Any ideas what to do to fix this problem?