This agreement tightly integrates Zfone with BorderWare's SIPassure VoIP Security Gateway, bringing a new level of security and ease of use to VoIP systems.

VoIP and related real-time communication applications, such as video conferencing and instant messaging, continue to attract considerable interest worldwide, with millions of active private and business VoIP users today. Carriers and enterprises are increasingly seeing the benefits of VoIP services that allow voice messaging and video conferencing to be conducted securely, like email, as communications are transferred freely over traditional phone networks and the Internet.

Together BorderWare and Phil Zimmermann have the security knowledge and IP expertise to provide secure VoIP solutions to the marketplace. BorderWare has a long standing history of being in the security industry for over 12 years protecting email, IM, web and VoIP, for the most demanding networks. Zimmerman has over 20 years experience specializing in cryptography and data security, and is the creator of Pretty Good Privacy, an email encryption software package that was originally made available on the Internet in 1991.

By integrating Zfone media encryption with SIPassure, BorderWare is extending the VoIP security provided to organizations from threats such as Spam to Denial-of-Service attacks to include eavesdropping, spying and wiretapping, while delivering the same level of security and convenience that organizations have come to expect from email.

"We're pleased to be the first security company to license Zfone, as it is poised to become the global standard for VoIP media encryption," said Tim Leisman, CEO of BorderWare. "Phil's reputation and proven track record in email and data encryption offer a very logical foundation for VoIP media encryption, and our vast experience in security makes an unbeatable and reputable combination to deliver VoIP security through the SIPassure offering."

"As VoIP grows into a replacement for the PSTN, we will absolutely need to protect it, or organized crime will be attacking it as intensively as they attack the rest of the Internet today," commented Phil Zimmerman. "VoIP is far more vulnerable to interception than the PSTN. Corporate VoIP calls can be captured and organized on disk for convenient point-and-click wiretapping by criminals half a world away. The combination of Zfone and BorderWare makes it easy to convert an entire installed base of office phones into secure phones in just one stroke, without having to replace them all with ZRTP-enabled phones."

Zfone is secure Voice over IP. It uses a new protocol called ZRTP, which is better than other approaches to secure VoIP because it achieves security without the reliance on a PKI (Public Key Infrastructure), key certification, trust models, certificate authorities or key management complexity that bedevils the email encryption world. It does not rely on SIP signaling for the key management, and in fact, does not rely on any servers at all. It performs its key agreements and key management in a pure peer-to-peer manner over the RTP packet stream. It interoperates with any standard SIP phone, but naturally only encrypts the call if you are calling another ZRTP enabled device or phone. This new protocol has been submitted to the IETF as a proposal for a public standard, to enable interoperability of SIP endpoints from different vendors.

SIPassure is the industries first VoIP Security Gateway - a new class of product that offers the best features of an enterprise firewall, an Application layer gateway (ALG) and a Session Border Controller (SBC) to take security for VoIP applications to the next level. SIPassure is designed to secure all Session Initiation Protocol (SIP) based applications including VoIP services, video conferencing and other messaging applications. SIPassure ensures that organizations using SIP-based applications are safe from abuse and service disruption from internal and external malicious attacks, interference spam and other related threats. SIPassure sets a new standard for price performance for both the enterprise and carrier markets.

About Phil Zimmermann

Mr. Zimmermann received his bachelor's degree in computer science from Florida Atlantic University in 1978. He is a member of the International Association of Cryptologic Research, the Association for Computing Machinery, and the League for Programming Freedom. He serves on the Roundtable on Scientific Communication and National Security, a collaborative project of The National Academies and The Center for Strategic and International Studies. He is Chairman of the OpenPGP Alliance, serves on the Board of Directors for Computer Professionals for Social Responsibility, and is on the Advisory Boards for Anonymizer.com, Hush Communications, PGP Corporation, and Qualys.