Does Avenda use freeradius?

Hi, I've been looking at getting an appliance from a company called Avenda Systems (www.avendasystems.com). Its a RADIUS appliance with a nice GUI, but I think FreeRADIUS offers all the features that it does. Does anyone have any experience of it? Or a comparison between it and FreeRADIUS? Also I think it may be FreeRADIUS underneath, does anyone know if that is the case? thanks, paul