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.
We are Telephony Service Provider for internationals calls. Also we do wholesale termination services special for Romania, France and several countries in Africa and Asia. We provide our clients DID''''''''s and they can use CLI routes.