12.3.4 Enabling the administration menu on a DECT 800 handset
In the handset administration menu, you can perform a factory reset of the handset, check the current firmware version, or track the status of the firmware download.
To unlock the administration menu
1 Select on the handset Menu | Calls | Call time.
2 Enter the following symbol string using the navigation key and the asterisk symbol: ">*<<*<"
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You can now open the administration menu via
Menu | Calls | Admin Menu