[Example]
Telephone Company
(area code: 333)
Telephone Company
(area code: 222)
TIE Line Network

TIE Line

952-9-1-333-123-4567
Outside Party
Interface Interface
Extn. 1011 Extn. 1011
CO LineCO Line CO LineCO Line
Dials "(DISA phone
number)-9-1-333-
123-4567".
(333-123-4567)
123-4567
Outside Caller
TRG 2
DISA
PBX-1
PBX Code 951
PBX-2
PBX Code 952
Explanation:
1. The outside caller dials the "DISA phone number of PBX-1", Idle Line Access number of PBX-1 "9",
and telephone number "1-333-123-4567".
2. PBX-1 modifies the call (adds "952" and the Idle Line Access number of PBX-2 "9") and sends the call
to PBX-2 which has PBX code "952" through the TIE line (trunk group [TRG] 2) according to the ARS
programming of PBX-1.
3. PBX-2 sends the modified call to the outside party "333-123-4567" according to its ARS programming.
4. TIE Line Routing and Modification Table
To Make a TIE Line Call
The TIE Line Routing and Modification Table is referenced by the PBX to identify the CO line route when
an extension user makes a TIE line call.
It is necessary to make unified tables with all PBXs in the TIE line network.
The routing pattern appropriate for each call is decided by the dialed number.
There are two system programs for the tables:
TIE Line Routing Table: used to assign the leading numbers (PBX code or extension number) and trunk
group hunt sequence.
11.1 [9-1] TIE Table— Leading Number
TIE Modify Removed Number of Digits/Added Number: used to remove digits from and add a number
to the dialed number of the TIE line call. This modification may be needed depending on the TIE line network
configuration.
11.1 [9-1] TIE Table
→Removed Number of Digits
→Added Number
→Trunk Group
[Programming Examples]
Your PBX is PBX-1 and there are four PBXs in your TIE line network. To identify the CO line route as
illustrated, you should make the following tables.
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13.1.13 PRIVATE NETWORK FEATURES