Gigaset SL450 Owner's Manual page 65

Resetting the handset to the default settings
Reset any individual settings and changes that you have made.
¤
. . . use
Reset OK Yes . . . the handset's settings are reset
The following settings are not affected by a reset
•
Registration of the handset to the base station
•
Date and time
•
Directory entries and call lists
•
SMS lists
to select Settings OK System
Handset
OK Handset
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