The moment you check all your boxes, you win and your jubilant shouting draws an end to the current round. Once the player calls Bingo, the assistant comes and cross checks. In modern system of bingo, your identification number is traced and fed to the computer for the verification. In some places, the winning cards are placed for certain duration, so that the others can verify, if required. It leaves hardly any scope for discrepancy, but in any case of dispute, the hall manager or the Bingo manager creeps in to sort out. The result is in the binary form, either 0 or 1. There can be only two stages, either you have made the Bingo or NOT.
 
What happens when more than one player yell with the term Bingo? It is If both are found to be authentic in all respect that the Jackpot is split. Even if the numbers become more, the jackpot has to split in equal number.