NEC has unveiled a technique it claims will prevent spam
IP phone calls bothering users.
SPam over Internet Telephony (SPIT) is an increasing problem as
the adoption of voice over IP systems takes off among enterprises
and consumers.
NEC said that if unsolicited spam calls become as frequent as
spam e-mail, constantly-ringing VoIP phones may hinder the spread
of their use.
NEC’s VoIP SEAL blocks calls arising from
spam-generating-software and separates them from the ones made by
real individuals, using a Turing test.
The solution blocks SPIT based on the communication pattern
observed during a call. This prevents the user’s phone from ringing
unnecessarily as a result of SPIT.
NEC said VoIP SEAL‘s modular system allowed operators and
enterprises to easily update the protection as new types of SPIT
appeared, and to flexibly integrate the platform with a variety of
VoIP hardware.
The Turing test detects whether the caller is a human or a
machine by measuring the capability to perform human-like
conversation. The method was described by Alan Turing in 1950.
The NEC solution will be demonstrated at next month's
3GSM show in Barcelona.
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