Ways to increase system availability and balancing:
- HAAST from GenerationD www.GenerationD.com offers high availability / clustering for your existing Asterisk servers. The High Availability ASTerisk (HAAST) add-on offers rapid automatic failover of a failed peer, transparent to up/downstream devices. HAAST also supports manual promote/demote for maintenance, a command line interface, a telnet interface, a web based interface, and IP address sharing for simple configuration and operations. Installation is straight forward, with no additional hardware required. Real-time fail-over takes 3-10 seconds to complete. Turn any pair of Asterisk servers into a cluster. HAAST is a commercial solution, in use at call centers and other high-uptime environments. A "Lite" version is also available for smaller Asterisk installations.
- HiPBX is a new FOSS highly-available enterprise ready CentOS6/Asterisk/FreePBX distribution. It is currently being written by one of the original developers of FreePBX, and tightly integrates with (currently) Cisco SPA model phones. It provides Active Directory integration, automatic phone provisioning, user-configuration of phone features through their own Web interface, and cluster and node management through a GUI. This is all new software, and is not based off an existing project. It's currently under intensive development, and all source code is available on Github.
- DNS SRV on the CPE side but not all phones handle this.
- SARK-HA from Aelintra Telecom offers High Availability Asterisk out-of-the box. Runs Aelintra's SARK UCS MVP on a pair of servers.... Real-time failover takes less than 20 seconds to complete and includes support for ISDN PRI circuits. The servers are kept in synch using rsync. Wiki pages HERE. System also includes multi-tenant and a fully integrated provisioning system with zero touch, DHCP-free set-up for multicast capable phones... see HERE.
- Ranch Networks offers High Availability White_Paper_one_one_HA.pdf solution for Asterisk. This is Hardware based solution. (Just for two asterisks boxes).
- Flip1405 Manages virtual IP between two Asterisk servers and queries UDP5060 for state changes
- Downtime less than 30 seconds
- Only 2 dependencies (nmap and arping)
- Incredibly easy to setup
- SERVERware is a next generation communication technology solution. Delivers a wide range of IP services and applications. It is redundant, high available and fault tolerant. The SERVER edition of SERVERware is the most economical way to start delivering IP service from a single server. This edition includes all the necessary components that allow service providers to offer any of the supported VPS templates with a clear path upgrade to network edition.
