I have been trying to find a solution of using a Cisco IP phone remotely to connect to a UC 500 without a Router (800 series or 500 series). I understand that the UC 500 requires a router to establish a remote VPN connection before a IP phone can connect remotely. With most of the other IP phone systems this is not a requirement. They use the IP phone remotely and connect to the central IP phone system. With all the new developments on the UC 500, is this possible?