It can only be used for pairing with wireless headsets and not for any file transfers (OBEX profile) or for wireless tethering.
These activities include hunting with dogs, animal circuses, tethering of horses and ponies and giving animal prizes.
That's why "tethering" a broadband digital mobile phone to a laptop is such a great solution.
Not all cell phones are capable of tethering.
Furthermore, tethering can some times be in violation of your Terms of Service with your chosen wireless provider.