Zfone is software for secure voice communication over the Internet (VoIP). It is created by Phil Zimmermann, the creator of the PGP encryption software. Zfone works on top of existing SIP- and RTP-programs, like Gizmo and SIPphone
Was:Zfone is software for secure voice communication over the Internet (VoIP). It is created by Phil Zimmermann, the creator of the PGP encryption software. Zfone works on top of existing SIP- and RTP-programs, like Gizmo and SIPphone, but should work with an