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NEC puts SPIT on Hit List

Briefs | 03/01/2007 5:00 am EST

Telecom equipment maker NEC Corp. has its eyes on Spam over Internet Telephony (SPIT), a theoretical problem that combines open VoIP systems and the proliferation of unsolicited email. Known as VoIP SEAL, NEC’s solution detects and blocks SPIT by observing the way calls act – a method based on the Turing test, devised in 1950 by the father of computer science Alan Turing to tell if a caller is human or a machine. According to an NEC test, VoIP SEAL detected and blocked 99% of the SPIT thrown at it. Although potentially annoying, SPIT is not a substantial threat today (see Telemanagement 238, September 1, 2006: "The Truth About SPIT").

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