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Trunk Group
Description
All CO lines and TIE lines in the system can be grouped into up to 48 Trunk Groups. This
allows extension users to call outside parties without designating a specific CO line, since a CO
line is automatically selected from the designated Trunk Group. All CO lines belonging to a
Trunk Group follow the assignment determined for that Trunk Group.
Conditions
• Each CO line can only belong to one Trunk Group.
• Line Hunting Order
An idle CO line in a trunk group is selected in one of the following three line hunting orders.
a)
Normal (default)
The system connects the user to an idle trunk line with the lowest trunk port physical
number.
b)
Reverse
The system connects the user to an idle trunk line with the highest trunk port physical
number.
c)
Sequential
To avoid repeated use of the same trunk line, rotation is performed in numerical order
(from the lowest to the highest trunk port physical number). Busy lines are skipped, of
course.
• Tenant Service
If Tenant Service is employed, the affiliation of each trunk group is determined by System
Programming.
Features Guide
1.3 System Features
103
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