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[jizai1278sg]

Forum to organize activities, how to set up mobile number can not repeat the fill?

Hello everybody,[link widoczny dla zalogowanych], I want to hold an event in the forum to participants to complete the phone number,[link widoczny dla zalogowanych], I call every phone number can only be entered once, that is the only mobile phone number identity, therefore, hope When a user enters a phone number,[link widoczny dla zalogowanych], when the line of detection,[link widoczny dla zalogowanych], if you have lost,[link widoczny dla zalogowanych], and would not allow release to participate, how to set ah?

urgent!
hope, thank you!