DocJ is correct. However if you consider that Cell companies do not follow their own rules nor the rules of the FCC. They advertise unlimited internet using a meaning of the word unlimited that is not in any dictionary. This is not by accident. They know full well that it is a form of a lie. But if it means more business they do not care. In this case being discussed no one is stealing the internet service. Users are just expanding the service from one device to another and paying for this service monthly Certainly no worse than what cell companies do every day. It is not illegal. I would suggest that ATT does not care or they would quickly close the loophole. many thousands of users have done something similar with the Mobley