Phone Harassment takes many forms. From silence, to constant hang ups, to heavy breathing to threats and more. Phone harassment is a general term used to describe any kind of unwanted telephone call that's intended to cause upset, grief and alarm. It's an invasion of privacy, and a form of bullying. It is the action of the coward, afraid of an in person confrontation. Caller ID blocking gives the harasser the false illusion on anonymity. Malicious or abusive phone calls are a criminal offense, under section 43 of the Telecommunications Act, 1984,. Alternatively, The Protection from Harassment Act 1997 covers many forms of harassment involving persistent contact that causes distress. For more info, report the problem to your phone service provider. (UK Law) This site has more information: http://www.thesite.org/homelawandmoney/law/victims/phoneharassment Remember, just because you can't see who is calling you, doesn't mean that the cops can't. The phone companies keep detailed logs on who called who, when, for how long, and often times from where. Law enforcement and the courts can get access to those records to help deal with harassment.