Well, it's not the numbers that are lucky. If there is any pattern, it will be in the balls themselves. And I imagine they change those regularly.
How much do you pay for a shot at these games? Is it 50c per call? How much do you win? How long do you have to play to win?
Finally, you do realize that these games are stacked? It is not a game; it is phone charge business. They make money when you call. There is no reason why they would have to pay out.