http://ciisqbg45nggykdl6rjdrq3wc64csga4vkphu66qsi65mypeitqedoad.onion/blog/port-striping-v2
That worked for most people, but not for those who were behind such restrictive firewalls that even port 5060 isn't allowed out. So we started looking for a way to offer more ports for the ECC instances, without conflicting with all the ports offered by the RSA instances. Port striping v2 For testing purposes, two virtual machines were set up, one configured pretty much the same as a cryptostorm server, the other to act as a VPN client.