MultiCall is a free open source talkshow system built on top of Asterisk PBX. The code is available on GitHub, pull requests welcome!
Although in relatively early stages of development (and hence currently lacking in some useful features), MultiCall is mature enough for use on air.
MultiCall will work with virtually any SIP provider (such as SIPGate Basic), can connect with any SIP-enabled phone (or a standard web browser – perfect for remote working), and can handle as many concurrent calls as your Asterisk system can.
