wife — harrassing by calling her on her mobile and using abusive language and distrubuing every day for the last 2 years

sir,
an unknown person harrassing my wife on her cell phone calling at least 20 to 30 times all the day without any timing and harrassing her by using abusive and threatnening language. as this is matter concerning with priestage of family i am unable to complaint directly to police. the numbers used by the so called unknown person are [protected] and [protected]. so kindly help me to get rid of this problem