BigPatents India

Aspects of the invention provide a method and apparatus for producing a bill for usage of a telecommunications network. The method comprises the steps of: obtaining from the telecommunications network a set of events on the network; providing a set of schema applicable to a set of products available to the user, the schema for processing events retrieved from the network; selecting from the set of schemas, schemas applicable to the products used by the user; and applying the selected schemas to the set of events to process the events into a form ready for bill production.