Virnetx, the holder of this patent, has asserted this patent (along with U.S. patent no. 7,418,504) against Apple, Cisco, NEC and others. Of particular interest is claim 13.
May 4th, 2011
(i) systems available before December 1999; (ii) publications prior to December 1999; or (iii) U.S. Patents filed before December 1999, that disclose:
- Early VoIP, IM or other IP-based communication systems, particularly those using SIP and/or H.323.
- a system which establishes an encrypted communication channel (not necessarily limited to a VPN) in response to a request for a network address (not necessarily limited to a DNS request for a secure website).
- a system for storing domai