It's very likely your phone does not have the correct profile.

I would pop over to, in the Pantech sub-forum to see if anyone has a technical solution there to circumvent your lack of the correct wired connection.

In the meantime, have you tried using the SD card slot to do some of the file/contact transfer(?) And FWIW, that cable you required may only be <$3-5 on ebay or amazon.