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.
When the thermometer reached a specific temperature, or after a predetermined period, a participant was chosen to play the game. A $0.99 fee was charged for each text message entry, in addition to standard text messaging charges imposed by the wireless carrier.