The mobile phone card received a short message from another unplugged mobile phone card.

The primary card does not participate in the telephone call, and the secondary card can also receive information. Although the main card and the auxiliary card are the same owner and enjoy a package, they can be understood as two independent cards when used. As long as the main card is not in arrears, the auxiliary card can be used. No matter whether the main card is inserted or not, as long as the main card is in normal state, the auxiliary card can be used normally. I hope I can help you.