Panasonic KX-TVM50 Installation Manual page 163

[Example Settings (2)]
Program the PBX to direct incoming trunk calls to an operator, and to then direct those calls to
the VPS when the operator does not answer.
a)
Program the PBX so that incoming trunk calls are directed to an operator (DIL feature).
1)
Go to the "CO & Incoming Call-DIL Table & Port Setting" screen.
2)
Assign "DIL Destination Day/Night/Lunch/Break" for each trunk to a specific
extension number (operator extension).
3)
Click "Apply" to save the changed data.
5.3 KX-TDA Series PBX Programming for Inband Integration
Installation Manual 163