Shaun Dakin calls it his “15 minutes of fame,” but his foresight in creating a nonprofit last year devoted to adding automated political phone calls to the national, voluntary “Do Not Call” registry is generating media attention lasting quite a bit longer than that.

“Robocalls,” as those recorded phone calls from political candidates are popularly known, have been one of the hottest issues of the presidential campaign in the final weeks of the election. And Dakin's interviews with CNN, ...