AT&T 250 - Manual (Page 7)

INSTALLATION
6
Wall Installation
1 Plug one end of the line cord into the telephone line jack.
2 Feed the line cord into the channel and wind it around and out of the
mounting area as shown.
3 Connect the other end to a wall jack.
4 Mount the phone on the wall as shown, then continue with the steps in
“For Table/Desk and Wall Installation” on page 7.
Telephone
line jack
Line cord
Channel
Mounting area
Modular
telephone
wall jack