Programming Manual for Digital Key Telephone System
LDK-
300 & LDK-100
CO Line Features
1-14
Condition
1. Only Keypad protocol is implemented.
2.
[FLASH],
[HOLD]
and
[CONF]
or
{
SUPP
HOLD}, {SUPP CONF}
keys are needed for
this feature.
{
SUPP CONF}
key can be made
by
Code [TRANS/PGM] *77#
.
3. The other stations or CO lines in the system
can not be a member.
ISDN – Call Barring (Italy national
protocol) – ATD only
Description
This feature enables the adjustment of the
COS(Class of Service) of ISDN CO lines in LDK-
24. That is to change the current COS of the CO
line from C5(all outgoing calls are possible) to
C2(outgoing calls only for specific numbers) and
vice versa.
.
Operation
To activate COS down at Attendant station
1. Press the
{CO}
key.
2. Press the programmed key for {
Call barring
}.
Or
Press [
FLASH
] key +
[2]
+
[0]
.
3. Service accepted and/or rejected by PX and
display during off- hook state.
Or service rejected and/or rejected by PX and
display during off- hook state.
4. Call barring key and
{CO}
Key and LED is
flashing at 50 IPM when this feature key is
activated
To activate COS up at Attendant station
1. Press the
{CO}
key.
2. Press the programmed key for {
Call barring
}.
Or
Press [
FLASH
] key +
[2]
+
[0]
.
3. Dial the password code for class up.
4. Service accepted and/or rejected by PX and
display during off- hook state
5. When ATD station goes to on-hook state, if
COS is restored to C5 then feature key LED
goes off and normal LCD message will be
displayed. But, if COS is not restored to C5
(Reject case), then LCD remains as before
(
{CO}
Key and feature key flashing at 60
IPM).
Condition
1. This feature is only available in national
keypad protocol.
2. Password code for call barring is not
possible to program to flexible button. So,
user always should dial this code.
3. This feature is supported only access
basis. So, only ATD station can activate
this feature. If normal station tries to use
this feature, then error tone is heard.
4. {
Call Barring
} key is used as toggled
key(class up/down).
5. If this feature is activated, ISDN Co line
COS changes according to service
type(class up/down).
6. When the COS is changed to C2 state,
the services available in all ISDN co lines
depend on the PX.
ISDN – Call Forward Unconditional
(CFU, Italy national protocol) – ATD
only
Description
This feature re-routes (forward) a specific CO
Line call to outside specific another subscriber
number.
PX will transfer a predefined specific
subscriber’s CO line call to another subscriber
number according to CO line/subscriber number
.
Operation
To activate Call Forward Unconditional(Only
available in preprogrammed flexible button. )
1. Press
{CO}]
key.