
Programming Manual for Digital Key Telephone System
LDK-
300 & LDK-100
CO Line Features
1-12
ISDN - MSN/SUB-ADDRESSING(N/A)
ISDN Supplementary Service
Description
ISDN supplementary services are provided by
PX system. So, these features depend on PX
and user should be subscribed to PX specific
service to use this feature. Further service
provided by the ISDN PX not mentioned in this
document is nation dependent.
ITEM
Feature
Code
REMARK
Call Barring Code
[FLASH] + 20
CFU Activation Code [FLASH] + 22
CFU Deactivation
Code
[FLASH] + 23
Memo Tel Normal
Deactivation Code
[FLASH] + 24
Memo Tel Normal
Activation Code
[FLASH] + 25
Memo Tel Timer
Code
[FLASH] + 26
Memo Tel Activation
only LNR
2)
[FLASH] + 27
Memo Tel
Interrogation of
service status
[FLASH] + 28
Memo Tel
Interrogation of
MSRS
3)
[FLASH] + 29
National
only, B
1)
Attendant Override
[TRANS/PGM
]+86
Attendant
Only, B
1)
Only
Note 1) Flexible button program available.
Note 2) LNR : Idle No Answer
Note 3) MSRS : Message Storage and Retrieve
System.
ISDN – CALL HOLD / RETRIEVE
Description
This feature allows the user to make another
call without using other channel. When the
HOLD supplementary service is invoked,
communication on a B-channel is interrupted
and the B-channel is released. The network
reserves the B-channel used by the user for
subsequent reuse. With this feature, ISDN-
Broker Call and Call Waiting are available.
Operation
1.
To hold the current call
;
(1) Press the
[FLASH]
key during
conversation.
(2) Press the
[HOLD]
key. Or
(1) Press programmed
{
SUPP HOLD}
button.
2. To make a new call by using the same
channel
(1) Press the
[FLASH]
key.
(2) Press the
{
CO}
key. Or
(1) Dial CO Access
Code 9
.
3. To retrieve the held call during
conversation;
(1) Press the
[HOLD]
key. Then
current call goes on hold and the held
call is retrieved.
4. To retrieve the held call after hanging up
the current conversation;
(1) Press the
{
CO}
key that is flashing
with 480 IPM.
Admin Programming
n
ISDN Attribute(PGM200)
Condition
1.
Both keypad protocol and functional
protocol are implemented.
2.
[FLASH]
and
[HOLD]
keys or pre-
programmed
{
SUPP HOLD}
are needed
for this feature.
{
SUPP HOLD}
key can
be made by
Code [TRANS/PGM] *75#
.