Ive had calls from this number, as Im on prepaid telstra account holder, just once, I answered the call and heard a couple musical notes, then a "drop out" tone........ I then checked my prepaid credit account to find I had been charged over $6.00 for this call, How they do it? I have no idea, its very annoying and frustrating, not to mention costly. The next move is to change my number, again being costly and who is to say that this same number wont find my new number too, and Im left in the same position.