In Orcons literature the difference between the Genius Lite and Genius products is the phone hanset and therefore I have always assumed the Lite product could 'host' DECT handsets but did not come with one. However A bit of research here indicates that this is not the case - the Lite product can only 'host' wired phones.
I currently am on an Orcon VOIP plan with DECT phones registered to a base that is connected to the RJ11 jack on the Lite router. To eliminate the base it would seem that I need the full Genius product - but I thought I would check here first.