There could be a few reasons why you are experiencing white static-like noise on all incoming calls on your phone.
One possibility is that there is an issue with your phone’s microphone. You can try restarting your phone, or testing the microphone using the phone’s built-in testing tools to see if that resolves the issue.
Another possibility is that the noise is coming from your network provider. You can contact your network provider and check if they are aware of any network issues in your area that could be causing the noise.
Another possibility is that you have a poor signal quality. If you are in a place where the signal is weak, this can cause interference and noise on the call.
A possible solution is to move to a different location, or try to make the call again later when you are in a better signal area.
You can also check the phone settings and see if there is any option to reduce the noise or call quality improvement.
If none of these solutions work, you may need to contact your phone manufacturer for further assistance.