Tuesday launches a national TV, radio and print campaign advertising its new Fridays Free promotion. Through February, small businesses using Sprint long-distance service will get one year of free calls on Fridays, including outbound domestic and international long distance, cellular long distance, faxes and calling card calls. Grey Advertising, New York, handles the campaign that will run in The Wall Street Journal
and USA Today
, among others. Sprint will also run the promotion on its Web site.