[TIE Line Network Connection Example]
PBX-1
PBX-3
PBX-2
Extn.1000
:
Extn.1999
Extn. 2000
:
Extn. 2999
(A) Master
(B) Master
(C) Master
QSIG Network
(A) Slave
(C) Slave
(B) Slave
Extn. 3000
:
Extn. 3999
TIE Line Call by Own PBX Extension Number
TIE line calls can be made using your own PBX extension numbering scheme (1–64).
PBX-1
TIE Line
PBX-2
InterfaceInterface
Extn.1033
Extn.1011 Extn.1012

TIE Line Network

Outside Caller

CO Line

CO Line

Dials "123-4567".

Telephone Company

Destination: 1033
DID No.: 4567
Dials "1033".
Explanation:
The PBX first searches local extensions for a matching number. If a dialed number is not found at the local
PBX, the call can then be sent to a remote PBX, and the remote PBX checks the TIE Line Routing Table
for a corresponding entry.
Case 1:
Extension 1012 of PBX-1 dials extension number "1011".
® The dialed number is found at the local PBX, and extension 1012 of PBX-1 is connected to extension
1011 of PBX-1.
Case 2:
Extension 1012 of PBX-1 dials extension number "1033".
® The dialed number is not found at the local PBX, so the call is redirected to the specified TIE Line, and
extension 1012 of PBX-1 is connected to extension 1033 of PBX-2.
240 Feature Manual Document Version 2008-11
13.1.13 PRIVATE NETWORK FEATURES