The crux of AT&T's recent complaint to the FCC regarding Google Voice was that Google -- not being subject to the common carrier rules that help facilitate fair, open telephone networks -- was blocking customers from accessing numbers managed by rural carriers that charged higher connection fees, thereby giving it a leg up on its Old Guard competition by saving cash in ways AT&T and others are legally barred from doing. Google's hitting back today, not by agreeing to submit to common carrier rules (come on now, don't be ridiculous) but by saying in a statement to the FCC that it's now blocking calls to "fewer than 100" numbers in total now that i