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.
Our company goals are straightforward: Offer our customers a platform to exchange voice traffic that is high quality, convenient, easy to manage, and inexpensive to operate.