Can I send a message? Unicom's mobile phone card is in arrears?

If you are in arrears, you can receive a short message with the following status: 1. In the case of a normal number, you can receive a short message, such as the number is in arrears but there is an available credit limit. In this case, you can receive short messages normally. 2. When the number is restricted from calling out, that is, when the number enters the single stop state, you can't make phone calls, send text messages, surf the Internet, etc. , but you can receive text messages and answer phone calls. 3. If the number stops, that is, if it stops twice, you can't receive the message. In other cases, you can also contact local customer service or consult in the business hall.