Abstract: A gaming system is configured to use player telephone numbers to call players regarding bonuses or other awards. A player may provide their telephone number when signing up for a casino player rewards club or may input their number when playing a wagering game at a gaming machine. Players are randomly selected, such as by generating phone numbers or assigned numbers associated with phone numbers. The selected player(s) are called or contacted and monetary awards or bonuses may be rewarded. Such awards may involve additional game play or be awarded without additional action.

Abstract: A gaming system is configured to present a bonus event at one or more gaming machines. The gaming machines may be configured to present base wagering games. A bonus server may monitor play at the gaming machines and trigger a bonus event. The bonus event server may be configured to dynamically modify the bonus event trigger based upon the number of gaming machines in play to keep the odds of triggering the bonus event relatively constant. The bonus event may comprise a timed bonus event, such as a tournament in which players of active gaming machines have the opportunity to play one or more free games.