The wave of Web 2.0.0 technologies has encouraged the introduction of Internet enabled computer programs delivered as a service rather than the standard medium of software on the CD being the product. Call Accounting businesses haven't ignored this opportunity and you can find now choose few companies who provide their services like a web based application. However, make it possible for these services a data collection device or call buffer is needed on the customer’s web site. So far, these devices happen to be so expensive they have limited the development of the technology, but right now the brakes are off, new products are now readily available in a portion of the historical rate. Call accounting as a web application is now on an extremely fast expansion way.