Vk2020 Bluetooth Mac

I have a bluetooth enabled mobile phone (VK2020) which I'd like to sync with my iCal and Address Book. As I don't have a data cable, I tried syncing using bluetooth. Unfortunately, my Mac provides a 8-digit passkey for pairing with the mobile. However, VK2020 accepts only 4 digits, not more :( This means, of course, that I cannot pair the two. Any ideas/suggestions? Is...