Panasonic KX-TDA100 Features Manual page 194

1.27 Networking Features
Example Network 4
Four PBXs connected by four TIE lines.
Each PBX is connected to two TIE lines, and must be programmed to send calls to each PBX via the
preferred TIE line.
Calls between PBXs that are not directly connected must be routed through another PBX. Also, if the
TIE line directly connecting two PBXs is busy, calls between these PBXs can be routed circularly
through other PBXs. For example, a call from PBX-1 to PBX-4 can be routed as follows: PBX-1 → PBX-
2 → PBX-3 → PBX-4.
PBX-1
Calls for PBX-1
PBX-4
Example Network 5
Four PBXs connected to each other by four TIE lines.
Each PBX is connected to the public network via CO lines.
It is possible for any PBX extension to call an outside party by routing a call via TIE line to another PBX,
then to the public network.
Telephone
Company
Telephone
Company
194 Feature Guide
PBX-2
Calls for PBX-2
Calls for PBX-1
Calls for PBX-4
Calls for PBX-2
Calls for PBX-3
Calls for PBX-4
PBX-3
Private Network
PBX-1
PBX-4
Calls for PBX-3
PBX-2
PBX-3
Telephone
Company
Telephone
Company