Unicom card can't make phone calls, but it can send messages. What happened?

The message that can be sent indicates that the service of the card is normal. As for the inability to make a call, it is recommended to restart the phone and try again. If it is still not restored, please put the card on another mobile phone and test whether you can make a call:

1, if you can dial it, it means that the problem lies in the settings of the original mobile phone. It is recommended to call the technical support hotline of the corresponding brand of mobile phone for help.

2. If you can't dial, it means that the problem lies in the card. You can call the local Unicom customer service hotline for feedback.