Swindlers Use Telephones, With Internet’s Tactics - NYTimes.com

Phone phishing and DoS

"People, businesses and government agencies across the country are combating the new schemes, in which scammers use the Internet to send huge volumes of calls at the same time. Many of the attacks bombard individuals with automated requests for personal data, in a variation of their email-scam cousins. But others are more vicious, flooding entire phone systems when demands are not met, similar to some attacks against websites."

Swindlers Use Telephones, With Internet’s Tactics - NYTimes.com