I had 2 years ago already a Windows smartphone from Nokia. This also works exactly as it should namely with synchronization of all data on USB. Unfortunately, the 630 seems to work only with all the points which have nothing to do with the call and Office. When installing the drivers RM-976 is equal to not find 3 times. And it is only the synchronization cable from music, videos and all the gimmicks possible. A synchronization cable from Outlook or other Office files is supported neither Zune nor of Windows Phone. Since I can not use Windows Phone which only supports frills, has no reasonable driver support and essential contents out of sync cable I go back to my Nokia Asha 300 which was this synchronization. The 630 goes back and is definitely the last phone which I bought from Microsoft since Microsoft is not even a manufacturer's ability to provide a working driver.