The phone features are absolutely top. There is really nothing missing. The Fritz box was recognized immediately and can be accessed on the central phone book. The voice quality is fine. The Windows software, however, is a disaster. Although the device is recognized by Windows error-free, is a select Outlook due to the "QuickSync" software not possible. I have not yet brought any software and hardware to run, but since then Feierabend, at least for Windows 7. The Forum reveals that most obviously here have problems.
Since this was an important feature for me, only three stars. Who does not need, can mentally add a star
