The Gigaset SL 910 (A) is a super phone for all the smartphone are thrilled - being very clear that it is not here to such! Very user-friendly (many are self-explanatory), very fine workmanship, very good functionality. Little things which are fixed quickly disrupt initially slightly -> (Fehlermeldung- line shows battery life) necessarily update firmware! If the base station LAN connection have to begin with this! Then update (very good description on You Tube) the handset. Base station with no LAN connection -> update the handset. Needs of the Gigaset page ([...]), the current program "Gigaset Quick Sync" to download to update. All other steps are well explained. Small drawback, please order now a mini USB cable, since it can be produced in any case not connected to the PC (unfortunately is not in!)