I have to jump in here and say that there are actually LEGITIMATE telemarketing companies - for instance, your long distance providers, your credit card companies, your BANKING INSTITUTIONS.
All these industries maintain a list of thier clients/customers. Read the privacy policy on all these things - you have given them permission to sell your name to telemarketing companies.
When these institutions sell lists, they are putting their company's integrity on the line - they are TRUSTING the telemarketing company to be honest and forthright, and most of all, compliant with federal laws regarding telemarketing.
The institutions make money when a consumer buys a product as a result of a phone call from their list. It's a common practice.
The companies that deem DNS lists 'not realistic' are the companies that give ALL telemarketers a bad name - there are LEGITIMATE, HONEST, companies that sell products via phone.

winkiebear
Deskdemon Editorial Board Member