1. A computer program embodied in a machine-readable storage medium, the computer program including instructions for controlling at least one network device to perform the following steps: receive a request to initiate a gaming session from a user, the gaming session comprising: receiving a wager on a game; determining an outcome for the game; and presenting the outcome of the game; ascertain whether the user is in a location in which the gaming session would be permitted; determine a telephone number associated with the location; place a telephone call to the telephone number; prompt the user for a biometric response; verify whether the user is an authorized user based in part on the biometric response; prompt the user to state a maximum amount of time for the gaming session; initiate the gaming session if it is verified that the user is an authorized user and ascertained that the user is in a location in which the gaming session would be permitted; and limit the gaming session according to the maximum amount of time.