Telemarketing agencies often invoke free speech in defending their right to call you just as you're picking up the dinner fork -- though earlier this year, at least one company promised to change its "cold calling" tactics. Commenator Tom Mabe makes a living turning the tables on telemarketers -- at least that's how he sees it. He waits for companies to call his number, then plays pranks on them. He then records his jokes and sells them on CD. Now that cold-calling is being phased out, he's worried.

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