Call of Duty: Modern Warfare II requires players to register with in order to make them responsible for their actions. The game will be released on October 28.

It is a repeat of the practice that caused issues for players of the game. The upcoming CoD shooter is one of the games that requires you to add a phone number to your account.

The phone verification system is intended to cut down on toxic behavior from players, preventing them from creating endless new accounts to evade bans or to cheat. "Limiting the number of free accounts that a single person can create helps keep players accountable for their actions and, in turn, reduces toxicity and cheating and ensures a positive community experience for all players"

The phone notification service isn't compatible with mobile phones with pre-paid plans.

The problem is that it doesn't treat all phone numbers the same. The phone notification service might not work with mobile phones with pre-paid plans. It doesn't work with voice over internet protocol. The service is only available to players with postpaid cellular plans, which may not be accessible to many players around the world.

The player told PC Gamer that refused to accept the number associated with their Cricket Wireless plan in order to start the game. Video game players need to sign a contract with a telecom company before they can play the game they paid for.

Requiring players to provide a phone number isn't new, but there haven't been many reports of problems with pre-paid phone plans The player we spoke to was blocked from playing the game because they entered the same number they had used to play the previous game.

Modern Warfare II is available on both PC digital stores and, but it is not certain if the phone number requirements will apply to all of them. Some commenters said they were asked for a phone number when they tried to play the game on steam, while others said they were not. The game is only available on

It is not known if there will be similar allowances for Modern Warfare II players. A person for the company did not reply immediately.