System and method of using diameter based signaling to support billing models for visually rendered services

A computer system comprising:

• first program instructions to:
• render visually rendered services to a user in an IP Multimedia subsystem based network based on stored user profile information including subscription information;
• monitor or track usage of the visually rendered services using the stored profile information;
• and
• provide usage information and subscription information of the user to an accounting platform for processing charging information for the visually rendered services;
• a computer readable media which stores the first program instructions;
• and
• a processor to execute the first program instructions,
• wherein:
• the first program instructions receive a user request for the visually rendered services;
• the first program instructions send a request for services to a subscriber server via an internet protocol multimedia subsystem (IMS);
• the first program instructions receive the subscription information and a charging model from a user profile stored in a subscriber server, the subscription information and the charging model being for a first user and a first service;
• the first program instructions visually render the first service based on preferences included in the subscription information, wherein the preferences are dynamically processed at runtime;
• the first program instructions provide the charging model to the accounting platform;
• and
• the usage information includes at least one of a type of service rendered, a size of delivered content of the rendered service, and activities of the user.