How to block or intercept phone calls and text messages in an area without trace, for example, I don't want to answer the phone in Guangxi.

You can try the following interception methods. Specific method steps can refer to:

1, the mobile phone system can set the function of marking numbers, and can mark fraudulent calls to help more mobile phone users identify fraudulent calls;

2. You can directly use the settings of the mobile phone system to add the mobile phone number to the blacklist and block the incoming calls and short messages of this number;

3. You can use Tencent Mobile Manager to set "intercept keywords" to intercept harassing calls or text messages.