Panasonic KX-TVM50 Installation Manual page 170

5.3 KX-TDA Series PBX Programming for Inband Integration
b)
Program the PBX so that unanswered calls to the ICD group are redirected to the VPS (ICD
Group Overflow feature).
1)
2)
3)
4)
170 Installation Manual
Go to the "Groups-Incoming Call Distribution Group-Group Settings" screen.
Assign "Time out & Manual Queue Redirection-Destination" for the ICD group to a
floating extension number (VPS Port).
Assign "Overflow Time" parameter.
Click "Apply" to save the changed data.