Panasonic KX-TDA100 Features Manual page 211

b)
The extension 1001 user transferred the call to extension 2001 by pressing the
Transfer button and dialing "2001".
3.2.
TIE-to-CO Line Calls
An extension user can make a CO line call by first routing the call through another PBX. These
calls can be routed by Automatic Route Selection (ARS), or restricted based on the Class of
Service (COS) of the CO line group carrying the call.
a)
TIE-to-CO Line Calls
[Example]
Extn. 1001
Dials "7-9-12125551234"
Explanation:
PBX-1 makes a call.
Extension 1001 dials the TIE Line Access number "7" and the Idle Line Access number of
PBX-2 "9", followed by the telephone number "1-212-555-1234".
1.
The TIE Line Access number was dialed, therefore PBX-1 checks its TIE Line Routing
and Modification Table (not shown here). Finds leading number "9". No modification is
programmed.
2.
PBX-1 removes the TIE Line Access number and sends the remaining digits down the
TIE line. The number is now "9-12125551234".
PBX-2 receives the call.
1.
PBX-2 checks its Incoming Number Modification Table (not shown here). No modification
is programmed. The number is still "9-12125551234".
2.
PBX-2 recognizes its Idle Line Access number, "9", and sends the remaining number,
"12125551234", to the telephone company using an idle CO line.
Private Network
PBX-1
CO Line
Telephone
Company
1.27 Networking Features
PBX-2
Outside Party
1-212-555-1234
Feature Guide 211