Panasonic KX-TS3282B Service Manual page 8

- If another model telephone is connected to the KX-TS3282B except
for KX-TS3281W, the line indicators of this unit will not function for
that telephone.
- If you re-connect the telephone line cord(s), confirm that all of the
extension indicators light with the AC adaptor connected, then
connect the telephone line cord(s). If all of the extension indicators
do not flash, the extension number has been assigned to this unit
and the number might be used for another unit on the same line.
Erase the previously assigned number, then connect the telephone
line cord(s). Re-assign the number to the unit.
8