Panasonic KX-T336 System Reference Manual page 741

3.06 Off-Hook Call Announcement
(OHCA)
Description
When called extension is busy (busy tone is
returned), OHCA allows the attendant to in form
the busy party that another call is waiting through
built-in speaker of the called user's PITS
telephone.
OHCA works under the following conditions:
• OHCA key (Programmable key) is assigned the
Attendant Console.
• The called extension's telephone is PITS KX-
T123230D, KX-T123235 or KX-T7130 and
OHCA button is assigned on it.
• The called extension is off-hook, all PDN
buttons are busy, and OHCA button is not in
use.
To utilize this function, install T-SW OHCA card
(KX-T336105) in the Basic Slot 02, and OHCA
card (KX-T96136) on the PLC or HLC card.
Refer to Section 2-C-3.02 "T-SW OHCA Card
(KX-T336105)" and Section 2-C-3.03 "OHCA
Card (KX-T96136)" for further information.
In the system programming, assign "Extension-
Station (1/3)", OHCA Circuit to "Yes" at the called
extension.
Programming
System Programming
"Configuration-Slot Assignment"
"Extension-Station (1/3)",
OHCA circuit
Attendant Management
OHCA key
Conditions
Busy status of PITS telephone user means all
PDNs on called extension are in use. In this
status, busy tone is returned.
OHCA does not function if "System-Class of
Service (1/2)", BSS/OHCA Deny is set to "Yes" at
called extension.
Reference
VT Dumb
9-C-2.00 10-C-1.00
9-G-1.01 10-C-22.00
Reference
6-C-10.00
6-D-14
Operation
1. Dial the extension number.
• Busy tone sounds.
2. Press the OHCA key (program-
OHCA
mable key).
• Confirmation tone sounds.
Start talking.
In case OHCA is available for
the extension, the OHCA
indicator on the called
extension lights in green, and
confirmation tone of two beeps
sounds.
(Supplement)
When a call is transferred to the extension in
OHCA conversation status, the transferred call
will be placed on a PDN as soon as any PDN
becomes idle by pressing the RELEASE key.
<Example>
When answering an incoming CO call and
transferring it to the extension, if the extension is
busy, talk to the extension that you will transfer
the CO call by pressing the OHCA key. Then
press the RELEASE key.
As soon as any PDN becomes idle, the CO call is
placed on the PDN on the called extension.