Why can't my Unicom card only surf the Internet and send messages by phone?

1, check whether the number card is in arrears; 2. Restart the machine test; 3, change the machine and change the card test; 4. Whether the signal is normal; 5. If you can dial after changing your mobile phone, there may be something wrong with your mobile phone settings. It is recommended to contact the mobile phone after-sales service. If you still can't dial after changing your mobile phone, it may be a problem with the number card. You can go to the business hall to check the number card, or you can call 10 10 for manual customer service verification.