How to dial an empty number on vivo phone

You can refer to the following processing methods for vivo mobile phones:

1. Unable to dial a short number, prompting an empty number. It may be that the short number is outside the designated area when using a short number. It is recommended to dial an ordinary 11-digit number. number;

2. Check whether the signal is good. If you are in a closed environment, such as a basement, elevator, etc., poor signal may prevent you from making outgoing calls;

3. Try to fly through the switch mode, try again after registering with the network;

4. Unable to dial a fixed number, prompting the user to be busy: it may be that the other party has set your number as a blacklist, it is recommended that you try to contact the other party through other methods , you can make normal calls after removing the blacklist;

5. Please confirm with the operator’s customer service whether the mobile phone number is in arrears;

6. The operator has been closed in some areas. 2G/3G network, please contact the operator to activate the VoLTE HD call service and try. After activating the VoLTE function, the signal bar will display the HD icon;

7. Confirm whether the calling card has activated the call restriction service. Some operators Supports call restriction services. If the phone card is activated, some or all outgoing calls will be restricted. Please consult the operator for details;

8. Upgrade the system or reset the network settings. Resetting the network settings will cause To delete and disconnect the connections and pairing records of WLAN, mobile data network, Bluetooth and other networks, you can enter the phone's settings - system management - backup and reset - reset network settings - enter the lock screen password. Note: Enter "Cloud Service"--Device Cloud Backup--Backup Data Type--Open "System Data"--Return to the previous page--Back up immediately to back up some system setting data. ;

9. Try changing a SIM card.

10. If the above methods fail to help restore, it is recommended to send the phone to the customer service center. Professional and technical personnel will enthusiastically serve you. Enter the browser and search the vivo official website--Service--Service Center- -View all--Select a province or city to check the local service center address and contact information.