All the inputted data in the system were already save in the database for future reference. Billing system is very complex starting from network elements that generate usage to the billing system to usage collection, mediation, rating, and invoicing. Particularly the research seeks information on the following phases:. Rating is the process of converting usage records from one form to another, like converting usage units to its cost.
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If he has no account, he signs up for a new account, else he signs. In the same general vein, the phrase any place any time increasingly summaries the customers expectation that business will provide what the customers wants, when and where the customers wants. Consider the way sales people at many firms use touch-one telephones to obtain pricing information and enter orders. Greater connectivity supports the continuing convergence of computing and communication whereby communication capabilities have become essentials to many systems, and computing capabilities have become essential to communication systems. Each customer in the system has an account balance, which affects any invoices requested by the customer and any payments done by the customer. At this time, SMS has become more popular and is not limited to personal usage; different sectors of the population are now using this technology to gain competitive edge in information technology. To simplify the process I will introduce a simple system usage scenario as shown in the following figure.