If you have tried to set up high availability for an asterisk VoIP PBX, you probably notices that it is easy to do in theory, but in practice, it isn’t quite always working as expected. For example, Trixbox has ways to set up high availability (HA), but when it comes down to it, the configuration adds too much complexity, and the system overall becomes less stable.
Generation D has come out with a clustering product for Asterisk that cost $2,000 for two nodes and the web interface. They claim 7s to fail over completely, and provide an API to enable integration with other systems. If we manage to secure a demo, we will provide more details on setup and performance.