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I-3
Incoming Central Office Call to Tie-Line
General Description
This feature permits an Attendant to connect an incoming public network exchange call, via a TIE Line, to a station
at a distant PBX.
Operating Procedure
To connect an incoming call
1.
The Attendant presses the LDN key and answers the incoming trunk call.
2.
Dial the TIE Line access code; receive dial tone from distant PBX.
3.
Dial the distant PBX extension number.
4.
Press the RELEASE key.
5.
The TIE Line and Central Office call are connected.
Service Conditions
1.
The Attendant can connect a trunk and TIE Line call either before or after the distant station answers.
2.
There is no limitation on the number of incoming trunks that may be connected to TIE Lines using this
feature.
3.
TRUNK-TO-TRUNK CONNECTION [T-10] may significantly degrade transmission quality.
4.
TRUNK-TO-TRUNK CONNECTION [T-10] can be restricted through Alternative Route restriction
assignments.
5.
AUTOMATIC RECALL [A-8] is denied on Incoming Central Office Call To Tie-line Connection.
6.
Since AUTOMATIC RECALL [A-8] cannot be initiated by a trunk, the ATTENDANT LOCKOUT [A-
5] feature is automatically disabled in order to allow the Attendant to reenter TRUNK-TO-TRUNK
CONNECTION [T-10] calls held on the ATTENDANT CONSOLE [A-3].
7.
This feature is applicable to the following types of incoming CO calls:
•
FX
•
WATS
•
CCSA
•
DID (Direct Inward Dialing)
•
COT (Ring Down/Loop Start)
8.
Loop-start CO trunks can be connected to tie trunks since release supervision is provided by the tie trunks.
9.
When release signal is not provided by TIE Line trunk, the Attendant must monitor the connection and
manually disconnect after use.
Interactions
1.
The Attendant Console must first be programmed.
2.
For TIE Line route to Central Office route connection, the reverse must be programmed. However,
program for ARI-D-RES:, Direct connection. This connection may also be Toll Restricted by using the
ATDP command.
3.
A station can transfer a call to a station or to the Attendant Console at a distant PBX via a TIE Line
connection. This station must be assigned a proper class of service.
NEAX2400 IPX Feature Programming Manual
NDA-24297, Issue 1
Incoming Central Office Call to Tie-Line Connection
Connection
I-3
Page 389
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