Feature Manual References
6.1.3 Flexible Buttons
21.2 Exclusive Features Table
Operating Manual References
1.3.52 Private Network Features—CLIP (Calling Line Identification Presentation)
1.3.53 Private Network Features—CLIR (Calling Line Identification Restriction)
1.3.55 Private Network Features—COLR (Connected Line Identification Restriction)
3.1.14 CO Line Access
Description
There are three methods of accessing a CO line.
Method Description Operation
Idle Line Access (Local
Access)
Selects an idle CO line
automatically from the assigned
trunk groups.
Dial the Idle Line Access number or
press a L-CO button.
Trunk Group Access Selects an idle CO line from the
corresponding trunk group.
Dial the Trunk Group Access number
and a trunk group number, or press a
G-CO button.
S-CO Line Access Selects the desired CO line
directly.
Dial the S-CO Line Access number and
the CO line number, or press the S-CO
button.
Conditions
•Class of Service (COS) programming determines the trunk groups available for making calls.
•CO Line numbers can be referred on a CO line port basis.
•Button Assignment
A flexible button can be customized as a G-CO, L-CO, or S-CO button as follows:
Type Assignable parameter
Loop-CO (L-CO) Any trunk group that is made available for Idle Line Access through
system programming is applied.
Group-CO (G-CO) A trunk group is assigned.
Single-CO (S-CO) A specified CO line is assigned.
It is possible to assign:
–the same CO line to the S-CO button and to a G-CO button.
–the same trunk group to more than one G-CO button.
–more than one L-CO button.
Dialing the CO Line Access number selects a CO button according to the following priority: S-CO ® G-CO
® L-CO
•Direct CO Line Access
56 Feature Manual Document Version 2008-11
3.1.14 CO Line Access