2. stumbling block and reason for return: The device was unable to load the time, from about 15:00 the next day was to read up about 8:30: "Time Reception". On the same site (directly at the window, house of sand-lime brick, no DECT telephone or wireless stations in the immediate vicinity) had a 15 year old station of Tchibo previously required more than 10 minutes for the time demand. Then carried the device into the converted attic and placed directly under the roof window - the same picture. Signal strength was apparently zero (only one point)
The manufacturer responded quickly and friendly to my e-mail, said that coverage of our home would be good. The reset tip accordance Manual did not work - apparently you can not reset before contact is made to the radio station (beep when pressing reset, whether long or short, not mentioned in the instructions on-screen displays / queries appeared)
The device (that was obviously not very original, for example, lacked the screen protector) therefore goes back to Amazon