Motorola V550 via Bluetooth

Although my Motorola V550 is listed as being synchronizable wiht ISync, I cannot add it as a new device under ISync.
I managed to establish a connection with bluetooth, and can even exchange files (pictures)
But since I want to synchronize my adress book, I started ISync. For some reason ISync cannot detect my Handy, although it is already connected via BlueTooth.
Can somebody help me with this?

Stefan Parpart