NEC recently announced the development of new technology for the prevention of SPam over Internet Telephony (SPIT), called VoIP SEAL. The new technology, which defends against the threat of rapidly increasing spam IP phone calls, is expected to contribute significantly to the realization of safe voice over internet protocol (VoIP) phone networks in the future.

NEC carried out a SPIT attack simulation project employing VoIP SEAL to verify the technology's ability to protect against SPIT. This project showed that 99% of SPIT was detected and blocked, preventing users from receiving unwanted calls.

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.

NEC claims that VoIP SEAL can protect and defend against SPIT, and is expected to contribute to the realization of a safe and secure next generation network.