BC you gave that website for Savvy seniors earlier, in looking into it more closely I came across this product in the www.alzstore.com, while it is a little on the expensive side for the top of the line model (hooked up to a phone jack) I think IMHO its a valuable item to have...no more confusion.
Check it out:
http://store.nexternal.com/shared/StoreFront/default.as...&Target=products.asp