crank call

1. If it is a mobile phone number, go to Unicom or the mobile website to check the ownership of this number. You can know if you know someone before.

If it is a landline, you can know where it is by looking at the area code.

If it's harassing the phone, don't pay attention to him. If he calls too much, he won't call again. It's best to turn off his cell phone during the break.

Let your relatives and friends have information about the incident.

4. You can report to the telecommunications department.