Rating and Follow up::Bill Calculation

The Bill Calculation Aggregate Function purpose is the preparation of the different items to be billed to the customer by the operator and trading partners (e.g. content providers).<br/><br/>The bill calculation usually collects, and eventually aggregates priced items that have been processed by the rating/pricing functionality and stored until the next bill calculation.<br/>This steps will consist of assembling different kinds of priced items relevant for a same billing account and dedicated period of time – which is concerned by the invoice to produce:<br/>•  recurring fees (as the subscriptions), <br/>•  non-recurring fees (late payment penalty; product access fees),<br/>•  usage fees,<br/>•  fees coming from other systems or providers.<br/><br/>Complex or global tax rules, or even discounts or penalties, can be applied on these sets of fees. <br/>For example, VAT is globally applied on the amount of usage fees related to the same classification.<br/><br/>Calculating discounts on volume, implies discounts are calculated when all the elements to be billed have been processed.<br/><br/>Bill calculation may also involve billing on behalf of other providers (bill items coming from external systems).<br/>