1.1 General Features
Feature Manual 99
Line Access Using the Other-CO (O-CO) Button
To select an idle outside (CO) line from among the outside (CO) lines that are not assigned to S-CO or G-
CO buttons, the proprietary telephone (PT) user can press the O-CO button.
Conditions
• Line Access, Direct Outside (CO) Line
If a PT user is on-hook when pressing an idle CO button, the PT automatically enables hands-free
operation mode. The user can dial without lifting the handset or pressing the SP-PHONE or MONITOR
button.
• The PBX waits for a preprogrammed length of time ( [206] Dialing Start Time) after seizing an outside
(CO) line before dialing.
• Button Assignment
A flexible CO button can be customized as an S-CO, G-CO, or O-CO button as follows:
The same outside (CO) line group can be assigned to more than one G-CO button on the same PT.
The same outside (CO) line can be assigned to an S-CO button and a G-CO button.
Dialing the Outside (CO) Line Access number selects a CO button according to the following priority:
S-CO G-CO O-CO
Once a flexible CO button is assigned as an Outside (CO) Line Access button, it indicates line status
with a variety of light patterns (
1.1.70 LED Indication).
• System programming determines the extension users that can make outside (CO) line calls in each
time service mode ( [405-407] Flexible Outward Dialing—Day/Night/Lunch).
Method Description Operation
Line Access, Automatic
(Local Access)
Selects an idle outside (CO) line
automatically from the assigned
outside (CO) lines ( [419]
Automatic Designated Line Access).
If Idle Line Preference ( 1.1.76 Line
Preference—Outgoing) is set on the
extension through personal
programming, the user can access an
idle line simply by going off-hook.
Dial the Automatic Line Access
number.
Line Access, Outside (CO)
Line Group
Selects an idle outside (CO) line from
the corresponding outside (CO) line
group.
Dial the Outside (CO) Line Group
Access number and an outside
(CO) line group number, or press a
Group-CO (G-CO) button.
Line Access, S-CO Line Selects the desired outside (CO) line
directly.
Press the Single-CO (S-CO)
button.
Type Assignable parameter
Single-CO (S-CO) A specified outside (CO) line is assigned (Default: CO 1–CO 8).
Group-CO (G-CO) An outside (CO) line group is assigned ( [404] CO Line Group
Number).
Other-CO (O-CO) Outside (CO) lines that are not assigned to S-CO or G-CO buttons
are assigned.
