My Auntie lives in the north of New South Wales, in a really out-of-the-way little town. We visited her a few Christmasses ago. We could get absolutely no cellphone reception the entire time! It was TERRIBLE. I mentioned to my Dad that the next time we go up north to see her, we should definitely get one or two satellite phones. I hear that Mackay Satellite Phones are offered on a whole heaps of plans, and they can be bought or rented.