1 / 9

eC Calling Cards

eC Calling Cards. Calling cards are a relatively recent phenomenon. The premise is fairly simple: an entrepreneur buys a large block of billable service minutes from a larger telecommunications company. The entrepreneur then re-sells the time in smaller blocks, at a profit.

Download Presentation

eC Calling Cards

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. eC Calling Cards

  2. Calling cards are a relatively recent phenomenon. The premise is fairly simple: an entrepreneur buys a large block of billable service minutes from a larger telecommunications company. The entrepreneur then re-sells the time in smaller blocks, at a profit.

  3. A brief examination of a calling card operation yields the surprising result that it is, essentially, a data management problem with the objective of keeping track of changes to these small blocks of allocated time.

  4. In its simplest form, the database of calling cards might retain only the ID numbers (sometimes also called PIN codes) and the balance remaining in that account. The company would also need to maintain a database of country codes, along with the associated rates and charges.

  5. Card record • Card ID • Balance • Expiration Date

  6. Country record • Country ID • Connection fee • PerMinuteFee

  7. Most calling card systems are of the type described above, such that when the original balance is exhausted the card is no longer valid and is discarded.

  8. However, some systems provide the option for the user to recharge the card, either by phone or through the web. By doing so, it is possible to establish a connection between a particular card and its user, and, conceivably, the transaction history of its user.

  9. The database overview slides contain links to the full database schema for “disposable” calling cards as well as “rechargeable” cards, along with a working JSP servlet that allows cards to be configured and re-charged.

More Related