Panasonic KX-NS500 Features Manual page 178

2.11.8 Trunk Call Limitation
3.
Trunk-to-TIE calls
PBX
4.
Conference calls that include legacy trunks and IP trunks
Legacy Trunk
5.
Calls to an outside line (legacy or IP trunk) that cross over a One-look network and the area ID is
different for each PBX.
PBX A
(Area ID: a)
Extension
Outside call over One-look network: Restricted
178 Feature Guide
Private line
Trunk-to-TIE: Restricted
IP Trunk
PBX
Conference
Restricted
Extension
One-look network
connection
Legacy Trunk/
IP Trunk
PBX
Legacy Trunk/
IP Trunk
PBX B
(Area ID: b)