DialIol is both the name of a computer program for Microsoft Windows and its associated website that tracks voting trends for American Idol contestants. The program allows users to automatically vote for the American Idol contestants of their choice using their PC's modem. The program then reports back to the main website, which keeps track of the results based on the percentage of calls for each contestant that result in a busy signal. DialIdol assumes that more busy signals means more callers are attempting to vote for that contestant. DialIdol was created during the fourth season of American Idol and was released to the public at the start of the fifth season.