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Home » News » Software Internet & Software » NEC Technology to Prevent IP Phone Spam
NEC Technology to Prevent IP Phone Spam
By: Sharon Khare   |   Jan 27, 2007
NEC Corporation has announced the development of new technology for the prevention of Spam over Internet Telephony (SPIT), VoIP SEAL.

The new technology aims to defend against the threat of rapidly increasing spam IP phone calls. Calls arising from spam-generating-software and calls from real individuals are separated by a Turing test. Before connecting the call, VoIP SEAL detects and blocks the unauthorized access based on the communication pattern observed during a call. This enables the detection and blocking of SPIT and prevents the user's phone from ringing unnecessarily. By adopting a module structure, VoIP SEAL enables rapid response to new kinds of SPIT attacks, without adjusting the system, by adding and updating modules to respond to new and different kinds of SPIT. The adoption of a module structure also realizes response to a broad range of applications by enabling flexible and easy customization of systems to meet the needs of a variety of hardware, such as SIP servers, SBC, home network equipment and terminal equipment.

In recent years, the spread of low-cost IP phones has advanced significantly in comparison to fixed-line phones as a new method of communication in the next-generation network (NGN) environment. However, although IP phones offer cost advantages, they also act as an easy platform for generating spam calls. The cost of generating a spam call over the Internet is cheaper than in a traditional network by a factor of 1000. As a result, the existing infrastructure for producing spam e-mails (botnets) can easily be modified to also produce spam telephone calls.

NEC claims that VoIP SEAL can protect and defend against SPIT, and is expected to contribute to the realization of a safe and secure NGN. NEC will continue to develop this technology toward its early commercialization as a VoIP solution.

VoIP SEAL will be exhibited at NEC's booth at the 3GSM World Congress 2007, taking place in Barcelona, Spain from February 12 - 15.
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