I was looking for a product that could work with HouseBot and provide the functionality of HomeSeer Phone. I haven't found it yet but I encountered a very interesting application that provides Interactive Voice Response (IVR) at a reasonable price.
NCH Swift Sound is discounting their IVM Answering Attendant Software by 50% until July 15th.
The product: http://www.nch.com.au/ivm/
The offer: https://www.nch.com.au/cgi-bin/register ... ftware=ivm
They also provide an SDK that lets IVM control external programs and vice versa. http://www.nch.com.au/ivm/sdk.html
It isn't precisely what I want but if you've been looking for a voice-driven menu interface for HouseBot (Press 1 to turn on all house lights ...) this may be the solution for you.