KoolSpan has developed a TrustChip that offers hardware-based encryption for voice on the iPhone 4 and 4S. The TrustChip is a fully hardened, self-contained security engine. It fits into a slim, custom-designed TrustSleeve adaptor with a separate battery pack for up to 12 hours of talk or 13.5 hours of Internet use. With the TrustSleeve attached, users can place mutually authenticated and fully encrypted phone calls with KoolSpan's TrustCall application. The application remains idle when calls are placed to non-secure phones. KoolSpan's secure voice solution for iPhone is vendor and carrier neutral so it can be deployed internationally across all networks. An iPhone 5 solution will be available soon.

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