The bluetooth headset seems much more responsive on the 680 but I am getting this one problem.

When I call my work VM line, the bluetooth won't pick up. If I make the call, disconnect the bluetooth... I can hear the VM and when I reconnect the bluetooth it works fine. But not if I dial with the BT connected. Any ideas?

The VM line is answered by a computer operator. I am using the 680 and a Sony 662 headset. Everything else works fine.