Panasonic KX-T336 Installation Instructions Manual page 241

DATA ERROR No.
431
440
450
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Probable Cause
Attempting to remove a card which is registered
in Power Failure Transfer (PFT) assignment.
Impossible to change the Numbering Plan to
"Fixed," because there exist DN's which should
be blank in the 'Fixed" mode in the Hundred
B l o c k .
Impossible to change GM/Paging group, for the Change after deleting all the extensions in the
pickup group belonging to the ICWaging group pickup group.
contains extensions.
Cancel the PFT assignment of the
Clear DN's which should be blank.
1 O-D-5-l
Countermeasure
card.
.