my co employee's wife make call and harrasses the whole staff douthing relationship with her husband . we have many time warned (him ) to control his wife behavior so that others should not get disturb ... but due to his fatherin law political influence he is unable to do anything . except saying sorry to all
Record such conversation and you can report if you receive such harassment.
Another alternative, you can make a Police complaint stating that you are getting harassment and threatening calls and ask them to keep your phone under observation and they can themselves monitor and can find the real culprit.
Use a different SIM and Number for your personal calls and never provide such numbers to any one.