Prepaid service applications assume that users (subscribers) are registered with a subscriber management system, so that they can log in to the network and be authenticated. By default a subscriber has no access to the network. All attempts to access the Internet are intercepted and captured by the Service Selection Portal.
Subscribers pay for the service in advance of use by purchasing an access card that has a valid account number and expiration date. The subscriber then can activate the prepaid service, which might be, for example, access to the Internet or access to a gaming server. At activation, the portal prompts the subscriber for the account number and validates the access. The portal grants access if appropriate, and charging starts as soon as the portal grants access.
To integrate prepaid service applications, the prepaid services demo consists of the following two components:
The prepaid services demo supports two types of prepaid service applications, time based and volume based. Both types are limited in the demo to a single service being concurrently active per prepaid account. The account server maintains the accounts.