Internet phones are all random numbers and cannot be traced. Generally speaking, the use of VoIP will not be discovered by the other party unless there is a bad event that harms society. The police check the user's phone number when registering through the VoIP service provider who called you. Some service providers can only register by email, so the chance of checking is very small.
You can use the harassment interception function of Tencent Mobile Manager to directly hack those calls. Through the harassment interception function, harassing calls can be blacklisted, and such calls cannot be answered, making it impossible to make calls. Open Tencent mobile phone housekeeper to prevent harassment and interception. There are many different settings in the phone interception settings, which can be set as needed. Tencent mobile phone housekeeper harassment interception function can effectively intercept harassing calls.