Please be informed that, notwithstanding the above mentioned, Gizmo Project will endeavor to provide all necessary assistance and information to fulfill the request of any designated competent authority.
The current Zfone software runs in the Internet Protocol stack on any Windows XP, Mac OS X, or Linux PC, and intercepts and filters all the VoIP packets as they go in and out of the machine, and secures the call on the fly.
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I have found to KPHONE to be simple and fun to use
Enjoy!