Panasonic KX-T7740 Quick Reference Manual page 3

Attaching a Proprietary Telephone
This unit can be connected to a Panasonic proprietary
telephone (e.g., KX-T7700 series).
Use the attachment plate and screws.
Wall Mounting
This unit can be mounted on a wall.
1
Remove the attached stand.
2
Mount the unit on the wall.
1
83 mm
2
3