Panasonic KX-T336, System Reference Manual

Page: 441 / 1605

3.06 GCO Button
Description
To support efficient utilization of CO lines, a
group of CO lines (trunk group) can be assigned
to a DN button on a PITS telephone.
When this function is assigned, a DN button on a
PITS serves as the Group CO (GCO) button.
GCO button feature provides better service with
a given number of CO lines.
GCO button can be assigned to a PITS
telephone in conjunction with DIL 1: N feature.
Incoming calls on any CO line in the trunk group
can be directed to a maximum of eight
destinations (extension user, ICM group, pickup
group) simultaneously.
In this case, incoming calls arrive at GCO buttons
on the PITS telephone.
If GCO button is not assigned, incoming CO calls
via DIL 1: N feature arrive at a PDN button on it.
To make an outside call, a PITS telephone user
can access an idle CO line in the group by simply
pressing the dedicated GCO button.
The table below shows the relationship between
the DN button programmed as Group CO and the
CO line status:
Indicator
Off
Lights green
Green 60 wink
Green 120 wink
Green 240 wink
Lights red
Red 60 wink
Red 120 wink
Red 240 wink
CO Line Status
Free CO line in trunk group and no
incoming CO call
I-use
I-hold
I-exclusive hold, consultation hold,
unattended conference
—
No idle CO lines in trunk group
and no incoming call in trunk
group
—
—
CO line receiving an incoming call
in trunk group
Trunk group which can be assigned as a GCO
button is:
• A trunk group assigned as Bothway or
Incoming Only, and whose Incoming Mode
(Day) is DIL 1:1 or DIL 1: N.
• A trunk group assigned as Outgoing Only.
Programming
Conditions
When the ARS function is set, it is overridden by
outgoing calls made by the Group CO button.
Pressing a Group CO button when it is red
serves to set the “Automatic Callback to Trunk”
function.
See Section 4-C-6.01, 5-A-4.01 “Automatic
Callback-Trunk” for details.
In the following cases, the Group CO button
indicator remains green and reorder tone is sent.
<1> When Calling Party Control signal has
been detected during a call using the
Group CO.
<2> When outgoing restriction applies to an
outgoing call made from a Group CO.
System Programming
Reference
VT Dumb
“Extension-Station (2/3)”,
Type and Number
10-C-24.00 9-G-1.02
4-B-10
(30393)