Panasonic VA-123210 Installation And Programming Manual page 8

Install the key telephone on the wall according to the following procedure.
@ Pull handset guide, turn it upside
down, then insert it into its position.
@ Push the hooks at two places, then
remove the adapter.
@ Turn the adapter upside down, insert
the guides into two adapter mounting
holes provided at the lower portion of
the key telephone, then push in the
adapter.
@ Place the mounting holes of the
bracket over the studs of the modular
jack and pull the phone downward to
secure in place.
Short station cords are provided to
attach the key telephone.
Handset cord obtainable on the market.
VAX-20884 7 feet
VAX-20885 15 feet