Illustration: Alamy

• Many states operate their own Do Not Call lists. Registering your phone with the one in your state may be more effective at stopping unwanted calls from local businesses, which are off the FTC’s radar.

• If you do end up talking with a telemarketer, try to elicit as much information as possible. You can often obtain the name and location of calling businesses by feigning interest in their products or services. This gives you a better chance of knowing the caller’s true identity for an accurate complaint.

• Screen your calls through your answering machine or ask your phone carrier about “blocking” services that prevent unknown phone numbers from reaching you. Learn about services and strategies to protect your privacy rights.

• Be aware that telemarketers making prohibited calls to Do Not Call registrants are subject to a $16,000 fine. “Often, if you mention that fact with a threat to sue, that stops telemarketers from calling you again,” says Lammé.

Sid Kirchheimer covers consumer and health issues for the AARP Bulletin.

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