Why can't Unicom make a phone call and send a text message?

The common reasons why Unicom's mobile phone can't answer the phone and the solutions are as follows: 1. Check whether the mobile phone is in arrears, and it is recommended to pay; 2. Check whether the mobile phone is set with call forwarding, flight mode on and call barring. Suggest canceling and try again; 3. Check whether the function or signal of the mobile phone is normal. It is recommended to change your mobile phone or location and try again. 4. If you can't use it when roaming to other places, it is recommended to check whether the local network signal is normal and whether the roaming authority is opened for this number; 5. Try to restart or change the phone to answer the phone; 6. Bring your mobile phone card to the local business hall for testing or replacement. Unicom's mobile phone can't send short messages, so you can try to restart or replace the mobile phone to test whether there are any of the following conditions: 1, the number of the short message center is set incorrectly, please re-enter the correct number of the short message center; 2. There is no signal or the battery of the mobile phone is insufficient; 3. The system is busy during the peak period of holiday SMS sending, so it is suggested to try again later or avoid the peak period of sending; 4. The sending format is incorrect. If you send a short message to PHS users, you need to add the area code before the number; 5. The short message sending time exceeds 24 hours; 6. The mobile phone shields the short message sending function; 7. Blacklisted by SMS; 8. Insufficient quantity balance; 9.SMS inbox and outbox are full. If the above reasons cannot be solved, you can contact the local manual customer service or go to the business hall to confirm whether the SMS function is enabled and hand it over to the staff.