asterisk: asterisk (Asterisk Open Source PBX) asterisk: asterisk: Asterisk is an open source framework for building communications asterisk: applications. Asterisk turns an ordinary computer into a asterisk: communications server. Asterisk powers IP PBX systems, VoIP gateways, asterisk: conference servers and other custom solutions. It is used by small asterisk: businesses, large businesses, call centers, carriers and government asterisk: agencies, worldwide. Asterisk is free and open source. Asterisk is asterisk: sponsored by Digium. asterisk: asterisk: Homepage: https://www.asterisk.org