I long time friend of mine has started a new business, On Target Marketing. Now this guy is not a part of the IM scene, but he is one of the best salesmen I have ever seen. He has been working in direct sales for nearly 50 years, 36 of those years have been spent doing telemarketing, running phone rooms and telephone marketing campaigns for some pretty major businesses.
On Target Telemarketing is a professional contract telemarketing service. They provide lead generation, direct sales, survey and polling services to virtually any business that requires that type of work. Typically, you would pay on a performance basis, i.e., only for the qualified leads generated, which will save you a mountain of time and money. As he says on his web site, "We take the hang ups and the "no's" so that you don't have to, and provide you with interested, qualified leads."
I know that internet marketers use telemarketing. I have received calls from Matt Bacek, Russel Brunson, Jay Diebolt, and several other internet marketing companies promoting anything from memberships to upsells on products I have purchased.
Check it out at On Target Marketing
http://www.ontargetphonepros.com