Gigaset 108 Owner's Manual page 31

This opens the screen for completing the basic settings.
You should now make the settings for network security.
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Click on Finish. The basic settings you have made are saved.
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You are taken to the Security Setup Wizard, which is described from page 35
onwards.
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If you want to make the security settings later, you can deactivate the relevant
option and then click on Finish.
If you have changed the default settings, the device is restarted.
Basic Setup Wizard
29