Motivation-Over the past decade there has been an dramatic increase in 1 ) Available modes of interpersonal communication and the range in quality of these modes of communication in terms speed , reliability , and flexibility 2 ) Reductions in the price of these modes of communication-long-distance telephone service , FAX machines , on-line information services CompuServe and America Online ( zero price for incremental messages )
Long distance services have fallen over time and will continue to do so .