Panasonic KX-TDA100 Features Manual page 231

3.3 Trunk-to-TIE-to-Trunk Access
An outside caller can be connected to an outside party through the TIE line by using
the DISA feature.
[Example]
Trunk
PBX-Code 951
DISA
Outside Caller
Dials "(DISA phone
number)-9-01-23-
4567".
Explanation:
1. The outside caller dials the "DISA phone number of PBX-1", Idle Trunk
Access/ARS number of PBX-1 "9", and telephone number "01-23-4567".
2. PBX-1 modifies the call (adds "952" and the Idle Trunk Access/ARS 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 call to the outside party "01-23-4567".
Telephone Company
Trunk
TIE Line Network
PBX-1
952-9-01-23-4567
TIE Line
Interface
TRG 2
Extn. 1011
1.26 Networking Features
01-23-
Trunk
4567
PBX-2
PBX-Code 952
Interface
Outside Party
(01-23-4567)
Extn. 1011
Feature Guide
Trunk
231