Does anyone know of any Fritz-compatible DECT repeaters? Since AVM doesn't seem to think it's necessary to offer a DECT repeater that can be used in CH, I now regret my purchase, even though the 301s are actually great. But since one of my heating controllers keeps losing the connection because it is relatively far away from the box, there is a lot of resentment, holiday switching, at least to the controller in question, becomes a lottery. I just don't understand AVM here, no switchable sockets, DECT repeaters and powerful powerline products for the CH. I regret my decision to go with AVM...