For the past two years, I have been working on and off on a high availability cluster module for FreeSWITCH. If you would like to see HA built into FreeSWITCH directly, instead of dealing with Pacemaker + Corosync or other 3rd party systems, please check out the module, voice your support, provide feedback and suggestions, and consider supporting it. Some advantages over a 3rd party solution like Pacemaker include: - Sub-second failure detection and response (meaning it can start recovering calls less than a second after a failure occurs) - Failure detection is built into FreeSWITCH so it can detect conditions which 3rd party modules cannot detect - One shared configuration file between all nodes (no per-node IP configuration required) - No fixed number of nodes - Graceful migration of calls with a maintenance mode (requires DNS) These are just some of the benefits of building a FreeSWITCH-specific HA system. For additional details about the project, please visit: http://wiki.freeswitch.org/wiki/Mod_ha_cluster If you would like to see this project come to fruition, please consider financially supporting it through Kickstarter: http://www.kickstarter.com/projects/1175121367/high-availability-cluster-mod... Thanks in advance for anyone who contributes, either with just a shout-out, with feedback and/or suggestions, and especially to those who pledge some financial support. -- Eliot Gable