Panasonic KX-TVS90 Installation Manual page 61

[Recommended Settings (3)]
If the VPS is only answering incoming outside calls not answered by user extensions:
a)
Assignment of DIL 1:1 line
1)
Go to the "4-1 Trunk Line" screen.
2)
Assign "Destination Day/Night/Lunch/Break" for each trunk (CO line) to a
specific extension number.
3)
Click "Apply" to save the changed data.
Screen output:
Installation Manual
INTEGRATING THE VPS WITH PANASONIC KX-T PHONE SYSTEMS
61