Patent attributes
In one embodiment, a communication device 204 includes a voice communication module 152 to effect packet-switched voice communications over an untrusted network 140; a secure communication module 228 to create a secured pathway 258 with a selected remote secure communication module 124; and a VPN topology client 232 to contact a VPN topology server 240 to receive VPN topology information 236 that enables the secure communication module to create the secured pathway with the selected remote secure communication module. The VPN topology information includes IP addresses associated with remote secure communication modules, with each of the IP addresses having a corresponding range of node addresses serviced by the respective secure communication module.
