...respected creator of PGP (pretty Good Privacy) has signed an exclusive business arrangement to market his innovative VOIPencryption technology, ZFONE. More information, inclusive of a short snippet of the TechWorld post, along with appropriate...
http://infosecurity.us/?p=9931
...VPN. Site-to-site-VPNs are nevertheless a choice when securing VoIP trunks. SSL-VPNs newly also provide VoIPencryption and are gaining ground for internal corporate communication. They provide security with an already existing infrastructure...
http://www.rt-solutions.de/upload/0_1175171370.pdf