A CCESS G ATEWAYThe Subscriber Interface 211Process Flow (AAA)The following flowchart outlines the AAA and billing process. All actions depicted in the chart are administeredand tracked by the Access Gateway.Internal and External Web ServersThe Access Gateway supports both internal and external Web servers which act as a login interface betweensubscribers and the solution provider’s network, including the Internet. The internal Web server is “flashed”into the system’s memory and the login page is served directly from the Access Gateway. In the external Webserver model, the Access Gateway redirects the subscriber’s login request to an external server. Either methodis transparent to the subscriber; however, the advantage of using the internal Web server is obvious – no loginredirection tasks and a faster response time for the subscriber.