Every contestant has been designated with an unique number. All viewer has to do is dial that number and after one ring, the call gets disconnected automatically. The viewer gets an acknowledgement message that his vote for the particular contestant has been registered. In one week, a viewer can vote for a particular contestant only once. However he can vote for multiple contestants in the same week. The best part is you can call to vote your favorite contestant even if you have zero balance in your prepaid account.