Juventus President Andrea Agnelli is fighting to have the Calciopoli titles re-assigned.
Al Ahly defender Cannavaro said: "He is right, as that team was the best on the pitch. It wasn't normal for Luciano Moggi to have special SIM cards to talk to referees, but all the clubs had less than transparent relationships with the officials.
"We have to set precise rules so the referees are left to do their work. In Italy we have rules that nobody really respects. We've all got to wake up."