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.
Founded in 1988, Citilink Group is today one of the leading lights in the Nigerian business community. It is a multi-investment company with interests in communications, information technology, finance, travels and tours, and consultancy.