This figure describes how Content Manager is used to rate content usage. The Customer is shown to the left. The Content Provider is at the center and shows the Content SDK and Content Server as its components. The Billing Provider is to the right and shows the Content Manager and BRM as its components. First, the customer uses a phone or a computer to send a purchase request to the Content Provider. The Content Provider uses Content SDK to forward the request to the Content Manager for authentication, authorization, and accounting (AAA). On completion of the AAA action, BRM Content Manager sends the AAA response to the Content Provider. Based on the response, the Content Provider sends the requested content from its Content Server (or error message) to the Customer.