you_can_call_me_Al

R.H. Donnelley: An Attractive Bet for High-Risk Investors- Barron's

User, your comment is thought provoking. I'm curious as to how he knows calls are coming from old ads. My natural assumption is that he can't know unless he stopped using YP, but continued to see responses. If so, did he tell you why he quit using them (and has he resumed)? If not, how did he figure this out.

Thanks in advance.