What?
Proves nothing. It is common knowledge that the voting system is set up to deny anyone who's able to make too many calls too fast, in order to keep out "war dialers." There was a contestant last year whose fans got together and wardialed her thousands of votes via linked computer modems or something, so they put a limit in.
By the way, Occam's Razor nukes your conspiracy theory. If "they" had every intention of declaring Ruben the winner no matter what, why would they have to go to the bother of blocking phone lines? AT&T is never going to release a set of audited numbers; the show's producers could have written whatever the hell they wanted on those little cards and handed them to Ryan, even if the true totals were 23,999,999 to 1.