Fimware updates of all mobile devices, and the base were necessary to the promised by Gigaset
To obtain functionality.
This measure I can only recommend everyone here, who are confronted with inexplicable problems.
To perform the update, the Gigaset QuickSync software is necessary.
QuickSync version 8.3.868.3
S810H firmware version to update 78.053.08
The S810H met all expectations in terms of sound and functions.
Strong buy recommendation.