The Ringtone Editor does not pop up, when I upload a picture to the handset. Why?
To use the Ringtone Editor it is neccessary that the option "Manually choose part of audio file" is activated in the Settings - Audio tab of the Gigaset QuickSync.
this configuration the Ringtone Editor pops up as each picture is
You will find further and detailed information, e.g. about the image and audio file formats, in the Help of Gigaset QuickSync.