When I was pregnant with Madison, I was a telemarketer. It is a thankless job, but it paid the bills. However, I did learn many things while working for this magazine seller. Most telemarketing companies have automatically dialers. I did not get a call until someone picked up and answered. The computer would then tell me their name. I often wondered how they found these people. What I learned was that telemarketing companies are able to buy telemarketing lists. They do not just randomly pick people. For example, I know one list that was bought was for people who recently signed up for phone service.