TeamSpeak 2
With rock solid performance, stability, and scalability the TeamSpeak 2 client and server were available for over 4 years to the open public. For hosting companies, the TeamSpeak 2 server was able to spawn multiple instances or "virtual servers" from a single server session, thus easily facilitating "server farming". The server also provided a native SQLite database but could be configured for use with MySQL, and was built in command-line query capabilities via Telnet, allowed practically limitless customization and integration options with your existing product or service.

Today, the TeamSpeak Classic product is now "retired" and is no longer supported.