Billing
Software was created in order to handle billing and time tracking as well as
invoicing the customer for products and services. This software can also track
worked hours by employees, as well as the expenses related to projects or
clients.
Main portion of the advantages of the Asterisk server appears from it being an open source downloadable product. Most of the users, especially business people, can find it difficult to understand the idea behind this principle, or free software, but a business models behind open source are different and specific, as in case with Asterisk server.