[VoiceOps] IPSec VPN server

[Eric Wieling]

We currently have SIP service with VZB, they require signaling go over an IPSec VPN tunnel.   Our current VPN box (which is somewhat old) crashes about once per year and we would like to replace it with something which is more reliable.

Can anyone recommend rock solid boxes which can handle 10Mbps of IPSec traffic?  Our current usage is about 1/2 of that, but I want room to grow.