The phones work very well. I do not know why others are not satisfied with the Spachqualität, with me it is excellent. Warning: these devices have no shortcut, but you must order one another. The three buttons below the display (Phonebook, Menu, Last Number) are all known to me as Panasonic DECT phones come very small. This is very annoying because the Phonebook key is probably be the most commonly used. Hie can rectify the manufacturer.