Panasonic KX-HDV430 Operating Instructions Manual page 30

Before Operating the Telephones
Going on-hook
In this manual, when you see the phrase "on-hook", you can do any of the following:
R Replace the corded handset on its cradle.
R Press /[SP-PHONE] when you are in hands-free mode.
R Press /[HEADSET] when using a headset.
R Press /[CANCEL].
R Tap "Off".
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