Asterisk® is the world’s leading open source telephony engine and tool kit. Asterisk offers flexibility unheard of in the world of proprietary communications, and Asterisk empowers developers and integrators to create advanced communication solutions...for free. Now you can get Asterisk training in Cape Town by people who understand and implement Asterisk. 2KO International employs top specialists who design and develop Asterisk solutions so that they can bring cutting edge knowledge to our Asterisk classes.

Asterisk® is released as open source under the GNU General Public License (GPL), and it is available for download free of charge. Asterisk® is the most popular open source software available, with the Asterisk Community being the top influencer in VoIP.