I need to install my Asterisk behind a vpn .... so that all calls are made on the vpn. First, i installed my Asterisk without a vpn and it worked. Calls between extensions, calls to DID's, calls to my SIP provider... All these calls were made and worked fine. But now i need to install a vpn infront of the asterisk and i want to make this VPN tunneling between the asterisk and the IP Phones... Can anyone help me with this????? I have a router with a VPN inside it which i want to use for this issue.