With the recent addition of Asterisk compatibility, Thecus NAS can now become your very own communication server. Asterisk provides the building blocks for a plethora of functions, including IP PBX systems, VoIP gateways, and conference servers for small and large businesses, call centers, carriers, and governments worldwide.
Asterisk is a framework for building multi-protocol, real-time communication applications and solutions. Essentially, Asterisk is to real-time voice and video applications as Apache is to web applications: the underlying platform. This allows Asterisk to simplify the complexities of communication protocols and technologies, allowing you to concentrate on creating innovative products and solutions. 

Compatible with both Thecus OS5 and OS6, Asterisk is totally free and is also delivered with a secure, web-based administrator interface.  The Asterisk NAS module is available in the Thecus Forum and App Center.

For more information on Asterisk, go to:   http://www.asterisk.org/