Siemens Hicom 150 E User And Installation Manual page 75

Click the Cancel button to return to the attendant monitor.
You can now reach your parties directly via the repdial keys.
From the menu bar, activate the Repdial keys menu (
access the pull-down menu with the repdial keys.
The Repdial keys option appears in the menu bar only if you
have configured repertory dial keys in the Settings window.
Programming/Changing Repdial Keys
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