- FCC: Slamming
- Consumer rights and instructions for those affected by the illegal practice of having their telephone service changed without permission. - Slamming Tip Sheet
- Questions to ask and information on how to lodge a complaint if your telephone company was changed without your permission. - Telephone Cramming
- Telemarketing fraud tips from the National Fraud Information Centre regarding charges for extra services such as voice mail, paging, and Internet access. - The Nightmare of Telephone Slamming
- February 18, 1998 testimony of the National Consumers League to the Senate Permanent Subcommitee on Investigations.
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