Ring!!!!!!! - A prank call, also known as a crank call, hoax call, phony call, or phony phone call is a form of practical joke committed over the telephone. As with all practical jokes, prank calls are generally done for humorous effect, though there is a thin line between humor and harassment, and the person receiving the call may not find it funny. Prank phone calls began to gain an America-wide following over a period of many years, as they gradually became a staple of the obscure and amusiing cassette tapes traded amongst musicians, sound engineers, and media traders beginning in the late 1970s. Source: Wikipedia