It is the use that everything is spoiled with the most irritating ringtone while it is impossible to change or to reduce its intensity.
But the worst is yet to come: the control surface on top of the object is such that one wrong button and quickly (I experienced) instead to postpone the ring a few minutes saving sleep, if we move his finger a few millimeters, unwittingly, we stop the repeater ... hello delays at work!
Too bad, though the object was so beautiful ...