When the thermometer reached a certain level, or after a certain amount of time, a caller was selected to play the game. A $.99 fee was charged for each text message entry, in addition to standard text messaging rates charged by the wireless provider.
If the thermometer hit a certain point, or after a set amount of time had passed, someone would be selected to participate in the game. Each text message entry cost $0.99, on top of regular text messaging fees charged by the mobile provider.