I bought the device for low extension of my existing Telfonanschlusses. Logging on to an existing ancient Siemens Gigaset 900 went smoothly as well as logging into a new Siemens Gigaset SL 785. Was legibly read everything in the manual. This phone is just a handset where man still holding something in his hand. Ordinary ringtones also each as such warnehmen significantly kann.Dazu include large buttons, bright display, with no frills!