Yeah, but that requires a voice modem, which I don't have. Also modemspy is shareware, and only like a 30 day trial. I like hardware solutions better, anyway. A ditto box works for my purposes, though. I wouldn't think this would fry my lines, I assumed it was one way from my wall socket to my phone line to my headphones. What I basically did was splice the green phone wire with the yellow&white headphone wires, and then spliced both reds together.