Which Gigaset handsets supports a firmware update via Gigaset QuickSync?

  • Gigaset SL78H
  • Gigaset S79H
  • Gigaset S800H
  • Gigaset S810H
  • Gigaset S820H
  • Gigaset SL400H
  • Gigaset SL910H
  • Gigaset S850H
  • Gigaset S850HX
  • Gigaset SL450H
  • Gigaset SL450HX