When are those Siemens DECT handsets going to be available again? \:\)
It could be some time yet, I think.
And they'll be very expensive initially too, I imagine. So for a stop-gap measure, that could equally be a permanent measure, go to Costco and pick up a 3, 4, or 5 handset DECT 6.0 system (non IP) now for a touch more than $100 or so.