LG LDK24 ADSL Router Owner's manual

Digital Key Telephone System
LDK-24
Programming Manual
Feature Description

Programming Manual forDigitalKey Telephone System
LDK-24
I
CONTENTS
1 . CO LINE FEATURES..........................................................................1-1
AUTO CALL NUMBER REDIAL................................................................................................1-1
AUTOMATIC PAUSE INSERTION ............................................................................................1-1
CALL PARK ............................................................................................................................1-1
CALL TRANSFER ...................................................................................................................1-2
CO CALL TIME RESTRICTION................................................................................................1-2
CO CALL TRANSFER TO CO LINE..........................................................................................1-3
CO FLASH..............................................................................................................................1-3
CO LINE ACCESS...................................................................................................................1-4
CO LINE GROUPS..................................................................................................................1-4
CO LINE NAME DISPLAY........................................................................................................1-5
CO LINE QUEUING.................................................................................................................1-5
CO LINE RING ASSIGNMENT.................................................................................................1-5
CO LINE RELEASE GUARD TIME...........................................................................................1-6
CO RING DETECT –ANALOG CO ONLY .....................................................................................1-6
CO STEP CALL –ANALOG CO ONLY ..........................................................................................1-6
DIALPULSE SENDING –ANA LOG CO ONLY ....................................................................................1-6
DIAL PULSE TO TONE SWITCH OVER ...................................................................................1-7
DISPLAY SECURITY ...............................................................................................................1-7
DISTINCT CO RING................................................................................................................1-7
DTMF SIGNAL SENDING........................................................................................................1-7
EXECUTIVE/SECRETARY TRANSFER....................................................................................1-8
HOLD.....................................................................................................................................1-8
ISDN -ADVICE OF CHARGE ..................................................................................................1-9
ISDN -CLIP (CALLING LINE IDENTIFICATION PRESENTATION)........................................... 1-10
ISDN–COLP (CONNECTED LINE IDENTIFICATION PRESENTATION).................................. 1-10
ISDN –CLIR (CALLING LINE IDENTIFICATION RESTRICTION) / COLR (CONNECTED LINE
IDENTIFICATION RESTRICTION) ......................................................................................... 1-10
ISDN-KEYPAD FACILITY SERVICE ........................................................................................1-11
ISDN -MSN/SUB-ADDRESSING(N/A) ................................................................................... 1-12
ISDN SUPPLEMENTARY SERVICE............................................................................................... 1-12
ISDN –CALL HOLD / RETRIEVE ..................................................................................... 1-12
ISDN –BROKER CALL...................................................................................................... 1-13
ISDN –3 PARTY CONFERENCE ....................................................................................... 1-13
ISDN –Call Barring (Italy national protocol) –ATD only ........................................................ 1-14
ISDN –Call Forward Unconditional (CFU, Italy national protocol) –ATD only......................... 1-14
ISDN –Memo Tel (Italy national protocol)............................................................................ 1-15
LAST NUMBER REDIAL (LNR) .............................................................................................. 1-16
MUSIC ON HOLD (MOH)....................................................................................................... 1-16
PAUSE INSERTION IN SPEED DIAL..................................................................................... 1-17
PREFERRED LINE ANSWER................................................................................................ 1-17
PRIVATE LINE ...................................................................................................................... 1-17
SAVE NUMBER REDIAL ....................................................................................................... 1-17
STATION SPEED DIAL.......................................................................................................... 1-18
SYSTEM SPEED DIAL.......................................................................................................... 1-19
SYSTEM SPEED ZONE GROUP ........................................................................................... 1-20
VOIP CALL–DIRECT CALL.................................................................................................... 1-20
VOIP CALL–CALL BY NETWORK TBL................................................................................... 1-20
2 . INTERCOM FEATURES.....................................................................2-1
AUTO RELEASE OF [MON] BTN .............................................................................................2-1
AUTOMATIC SPEAKER SELECT............................................................................................2-1

Programming Manual forDigitalKey Telephone System
LDK-24
II
BACKGROUND MUSIC...........................................................................................................2-1
CALENDAR DISPLAY .............................................................................................................2-1
CALL FORWARD....................................................................................................................2-2
CALL FORWARD-BUSY/NO ANSWER.....................................................................................2-2
CALL FORWARD-FOLLOW ME...............................................................................................2-3
CALL FORWARD-INCOMING CO LINE OFF-NET....................................................................2-3
CALL FORWARD-PRESET......................................................................................................2-4
CALL FORWARD-STATION OFF-NET......................................................................................2-4
CALL FORWARD -UNCONDITIONAL......................................................................................2-5
CALL WAITING/CAMP-ON ......................................................................................................2-5
DO NOT DISTURB (DND)........................................................................................................2-6
DND –ONE TIME DND...........................................................................................................2-6
DID CALL WAIT.........................................................................................................................2-6
FLASH ON ICM CALL .............................................................................................................2-7
HEADSET COMPATIBILITY .....................................................................................................2-7
HOT LINE/WARM LINE ...........................................................................................................2-7
INTERCOM BOX.....................................................................................................................2-8
INTERCOM CALL ...................................................................................................................2-8
INTERCOM CALL ON HOLD ...................................................................................................2-9
INTERCOM LOCK-OUT..........................................................................................................2-9
INTERCOM SERIAL CALLING.................................................................................................2-9
INTERCOM SIGNAL MODE.....................................................................................................2-9
INTERCOM STEP CALL........................................................................................................ 2-10
INTERCOM TENANCY GROUP............................................................................................. 2-10
INTERCOM TRANSFER........................................................................................................ 2-10
OFF-HOOK SIGNALING.........................................................................................................2-11
ON-HOOK DIALING...............................................................................................................2-11
PAGING.................................................................................................................................2-11
PAGING -MEET ME PAGE.................................................................................................... 2-12
PAGING -CONFERENCE GROUP ........................................................................................ 2-12
PICK UP –DIRECTED CALL PICK UP ................................................................................... 2-12
PICK UP -GROUP CALL PICK UP......................................................................................... 2-13
STATION FLEXIBLE BUTTON ASSIGNMENT......................................................................... 2-13
STATION PROGRAMMING MENU......................................................................................... 2-14
STATION RELOCATION ........................................................................................................ 2-14
2B PHONE............................................................................................................................ 2-15
STATION PROGRAMMING MENU TABLE.............................................................................. 2-16
ATTENDANT PROGRAMMING MENU TABLE ........................................................................ 2-17
3 . SYSTEM FEATURES..........................................................................3-1
ACCOUNT CODE ...................................................................................................................3-1
ALARM ...................................................................................................................................3-1
ANALOG CALLER ID SERVICE ......................................................................................................3-2
AUTOMATIC FAX TRANSFER.........................................................................................................3-2
AUTHORIZATION CODE (PASSWORD) ..................................................................................3-3
AUTO CALL RELEASE............................................................................................................3-3
AUTOMATIC CALL DISTRIBUTION .........................................................................................3-3
AUTOMATIC PRIVACY............................................................................................................3-4
BATTERY BACK-UP, MEMORY ...............................................................................................3-4
BUSY LAMP FIELD (BLF)........................................................................................................3-5
CANNED TOLL RESTRICTION................................................................................................3-5
CCR (CUSTOMER CALL ROUTING)........................................................................................3-5
CHANGE KEYSET RING CADENCE........................................................................................3-6
CLI MESSAGE WAITING.........................................................................................................3-6
CONFERENCE .......................................................................................................................3-7

Programming Manual forDigitalKey Telephone System
LDK-24
III
CO LINE WARNING TONE ......................................................................................................3-8
CUSTOMER SITE NAME REGISTRATION..................................................................................3-8
DATA LINE SECURITY ............................................................................................................3-8
DELAYED CO LINE RING........................................................................................................3-9
DIAL BY NAME .......................................................................................................................3-9
DIALING PRIVILEGES .......................................................................................................... 3-10
DID (DIRECT INWARDS DIALING) ........................................................................................ 3-12
DIFFERENTIAL RING............................................................................................................ 3-13
DISA(DIRECT INWARD SYSTEM ACCESS)................................................................................ 3-13
DOOR OPEN........................................................................................................................ 3-14
DUMMY DIAL TONE.............................................................................................................. 3-14
EMERGENCY CALL.............................................................................................................. 3-14
LCD MESSAGES.................................................................................................................. 3-15
Custom Messages: 00, 11~20............................................................................................. 3-15
Preselected Messages: 01~10............................................................................................ 3-15
LEAST COST ROUTING (LCR).............................................................................................. 3-16
LINKED STATION PAIR......................................................................................................... 3-17
LOUD BELL CONTROL (LBC) ............................................................................................... 3-18
MESSAGE WAITING / CALLBACK......................................................................................... 3-18
MUTE ................................................................................................................................... 3-19
PREPAID CALL..................................................................................................................... 3-19
SELF DIAGNOSTIC ................................................................................................................... 3-20
SMDR................................................................................................................................... 3-20
SMDR –Call Cost Display .................................................................................................. 3-21
SMDR –Lost Call Printing .................................................................................................. 3-21
SOFTWARE UPGRADE ........................................................................................................ 3-22
Software Upgrade –Local .................................................................................................. 3-22
Software Upgrade –ISDN .................................................................................................. 3-22
Software Upgrade –LAN.................................................................................................... 3-22
Software Upgrade –MODEM.............................................................................................. 3-23
SPEAKERPHONE................................................................................................................. 3-23
STATION GROUP: CIRCULAR/TERMINAL/UCD/RING/VM ....................................... 3-24
TIME & DATE SETUP BY DIGITAL NETWORK ......................................................................... 3-25
TRAFFIC ANALYSIS ............................................................................................................. 3-26
Traffic Analysis -Attendant.................................................................................................. 3-26
Traffic Analysis -Calls ........................................................................................................ 3-27
Traffic Analysis –H/W Unit.................................................................................................. 3-27
Traffic Analysis -CO........................................................................................................... 3-28
UNIVERSAL NIGHT ANSWER (UNA)..................................................................................... 3-28
VOICE ANNOUNCEMENT..................................................................................................... 3-29
System Greetings and Prompts........................................................................................... 3-29
Voice Prompt for Station ..................................................................................................... 3-30
User Greetings & Voice Message Wait ................................................................................ 3-31
VMIB Message for Paging .................................................................................................. 3-32
VMIB Message for SOS Paging.......................................................................................... 3-33
Night and Weekend VMIB Service....................................................................................... 3-33
VMIB MOH ........................................................................................................................ 3-33
Remote VMIB Control ........................................................................................................ 3-34
VMIB Message Transfer ..................................................................................................... 3-34
VMIB Message for Auto Attendant....................................................................................... 3-34
VOICE OVER........................................................................................................................ 3-35
WAKE-UP............................................................................................................................. 3-35
2-WAY RECORDING .................................................................................................................. 3-37
2-way Recording via SMDI ................................................................................................. 3-37
2-way Recording via VMIB.................................................................................................. 3-37
4 . ATTENDANT FEATURES...................................................................4-1

Programming Manual forDigitalKey Telephone System
LDK-24
IV
ATTENDANT...........................................................................................................................4-1
ATTENDANT CALL/QUEUING.................................................................................................4-1
ATTENDANT CLOCK SET.......................................................................................................4-1
ATTENDANT DISABLE OUTGOING ACCESS ..........................................................................4-2
ATTENDANT FORWARD.........................................................................................................4-2
ATTENDANT INTRUSION .......................................................................................................4-2
ATTENDANT OVERRIDE ........................................................................................................4-3
ATTENDANT RECALL.............................................................................................................4-3
DAY/NIGHT/WEEKEND MODE................................................................................................4-3
DSS/DLS CONSOLES.............................................................................................................4-4
INTERCOM BOX MUSIC SELECT...........................................................................................4-5
LCD DATE/TIME DISPLAY CHANGE .......................................................................................4-5
STATION FEATURE CANCEL..................................................................................................4-5
5 . SLT FEATURES ..................................................................................5-1
ABILITY FOR SLT TO PROGRAM NAME...................................................................................5-1
BROKERS CALL.....................................................................................................................5-1
CALL FORWARD....................................................................................................................5-1
CALL PICK UP ........................................................................................................................5-2
Group Call Pick-up...............................................................................................................5-2
Direct Call Pick-up ...............................................................................................................5-2
CALL TRANSFER ...................................................................................................................5-2
CALL WAITING / CAMP-ON.....................................................................................................5-2
CO LINE QUEUING.................................................................................................................5-3
CONFERENCE .......................................................................................................................5-3
DO NOT DISTURB ..................................................................................................................5-4
HOWLING TONE ....................................................................................................................5-4
LAST NUMBER REDIAL..........................................................................................................5-4
MESSAGE WAIT/CALL BACK..................................................................................................5-4
MESSAGE WAITING INDICATION...........................................................................................5-5
SIGNALING............................................................................................................................5-5
SMDR ACCOUNT CODE .........................................................................................................5-5
SMS SLT ................................................................................................................................5-5
SPEED DIAL...........................................................................................................................5-6
6 . DVM FEATURES.................................................................................6-1
OVERVIEW OF DVM................................................................................................................6-1
BUTTON ASSIGNMENT FOR DVM FUNCTION..........................................................................6-1
MESSAGE FORMAT...............................................................................................................6-1
ONE TOUCH RECORD...........................................................................................................6-2
ANSWERING MACHINE EMULATION .....................................................................................6-2
SMART TRANSFER................................................................................................................6-3
7 . INDEX................................................................................................7-1

Programming Manual forDigitalKey Telephone System
LDK-24
V

Programming Manual forDigitalKey Telephone System LDK-
300 & LDK-100 CO Line Features
1-1
1. CO LINE FEATURES
AUTO CALL NUMBER REDIAL
Description
A user can direct the system to continually redial
a number which returned busy or when no
answer was obtained. The system will retry the
number based on programming with appropriate
pauses in between dialing. (default: 3 times)
Operation
To use ACNR while receiving busy/no answer on
a CO line,
1. Press the [REDIAL] button.
2. Replace the handset or go on-hook.
3. The system will automatically retry the call at
programmed intervals.
4. When the called party answers, lift handset
or press [MUTE] button to make the call.
To cancel,
Press the flashing [REDIAL] button.
Or,
Lift handset or press [MUTE] button while a CO
line is seized to make ACNR.
Admin Programming
nACNR Pause Timer (PGM 180-BTN 10)
nACNR Delay Timer (PGM 180-BTN 8)
nACNR Tone Detect Timer (PGM 180-BTN 13)
–applicable to analog CO line only
nACNR No Answer Timer (PGM 180-BTN 9)
nACNR Retry Counter (PGM 180-BTN 11)
nACNR Tone Cadence (PGM 423)
Condition
1. A keyset which doesn't have [REDIAL]
button, should be programmed with a
[REDIAL] Flexible Button to use ACNR.
[TRANS/PGM] + Flex. BTN + [TRANS/PGM] +
9 7 + [HOLD/SAVE]
2. The analog CO lines in the system should be
equipped with Call Progress Tone detection
Units (CPTU).
3. When predefined CO line is busy in ACNR
mode, an available CO line in the same
group will be seized.
AUTOMATIC PAUSE INSERTION
Description
The system will automatically insert a timed pause
in a speed dial or redial number, if a flash or PABX
access code is included in the number.
Admin Programming
nPause Timer (PGM 181-BTN 11)
CALL PARK
Description
A user can park a call in a parking location and
retrieve the call by dialing the location number.
Also, the user may make a page announcement
for the desired user to pick-up the call. If the call
remains unanswered for the Call Park Recall time,
the station which parking the call receives recall.
If the call is still unanswered, the attendant will
also receive recall. If unanswered in the Attendant
Recall time, the CO line call will be disconnected
and returned to idle.
Operation
To park a call while on a CO line call,
1. Press the [TRANS/PGM] button.
2. Dial the parking location (601-608).
3. Replace the handset or go on-hook
4. If desired, page the party to retrieve the call.
To retrieve the parked call from a keyset,
1. Lift the Handset or press the [MON] button.
2. Dial the parking location.
Admin Programming
nI-Call Park Recall Timer (PGM 180-BTN 2)

Programming Manual forDigitalKey Telephone System LDK-
300 & LDK-100 CO Line Features
1-2
CALL TRANSFER
Description
A user can transfer calls on CO lines to other
stations in the system. If the receiving station
does not answer the call in the Transfer Recall
time, the transferring station and the transferred
station will receive recall. If the call remains
unanswered, the attendant will also receive a
recall for the Attendant Recall time. After that the
CO line will be disconnected and returned to idle.
Operation
To transfer to an idle station,
Unannounced Call Transfer
1. Press the [TRANS/PGM] button.
2. Intercom dial tone is heard and the CO line
call is placed on exclusive hold.
3. Dial the station number to receive the
transfer.
4. Replace the handset or go on-hook.
Announced Call Transfer
1. Press the [TRANS/PGM] button.
2. Intercom dial tone is heard and the CO line
call is placed on exclusive hold.
3. Dial the station number to receive the
transfer.
4. When the station answers, announce transfer.
5. Replace the handset or go on-hook.
To transfer to a busy station,
1. Press the [TRANS/PGM] button.
2. The CO line is automatically placed on
exclusive hold and ICM busy tone is heard.
3. The transferred station will receive muted
transferred CO line ring.
4. If the call is not answered within Transfer
Recall time, the CO line will be recalled to
the transferring station and the attendant will
receive recall ring if the call remains
unanswered.
Admin Programming
nNo Touch Answer (PGM 111-BTN 7)
nTransfer Recall Timer (PGM 180-BTN 7)
Condition
1. When the attendant has a DSS and a station
of programmed in DSS receives transferred
call, the LED of DSS button in attendant will
flashing.
CO CALL TIME RESTRICTION
Description
This feature is used to restrict an outgoing CO
call time. Setting the CO Call Drop Timer in a
station base, the call will be disconnected
automatically when the timer is expired. The
caller and called parties will hear warning tone
15sec before the CO call is disconnected.
Admin Programming
nCO Call Time Restriction (PGM 112-BTN 3)
nCO Call Restriction Timer (PGM 180-BTN
17)
Condition
1. This feature can be assigned on a station
basis.
2. It is applied to just outgoing CO call.
3. If the CO Call Drop timer enabled in a station,
the timer is still applied even a call is
transferred to another station.
4. On the add-on conference, the CO Call Drop
timer enabled station will be restricted to the
outgoing CO call time.
5. The CO Call Drop timer is not released even
the caller holds, transfers, or flashes the CO
line.

Programming Manual forDigitalKey Telephone System LDK-
300 & LDK-100 CO Line Features
1-3
CO CALL TRANSFER TO CO LINE
Description
A station may transfer a CO line call to another
CO line. If an external party on ISDN does not
answer the transferred call within Transfer Hold
Recall time, the transferring station will receive
recall ring. If the call remains unanswered, the
attendant will also receive recall ring for
Attendant Recall time. After that, the CO line will
be disconnected and returned to idle state.
Operation
Unscreened CO Line Call Transfer;
1. Press the [TRANS/PGM] button.
2. Intercom dial tone is heard and the CO line is
placed on exclusive hold state.
3. Seize a CO line and dial the number of
external party to be received the call.
4. Replace the handset and go on-hook.
Screened CO Line Call Transfer;
1. Press the [TRANS/PGM] button.
2. Intercom dial tone is heard and the CO line is
placed on exclusive hold state.
3. Seize a CO line and dial the number of
external party to be received the call.
4. When the called party answers, announce
the call transfer.
5. Replace the handset and go on-hook.
Admin Programming
nTransfer Hold Recall Timer (PGM 180-BTN
7)
nI-Hold Recall Timer (PGM 180-BTN 5)
nAttendant Recall Timer (PGM 180-BTN 1)
nOpen Loop Detect Timer (PGM 142-BTN 13)
Condition
1. For this feature, CO lines (transferred CO
line and transferring CO line) must be able to
detect loop lost or disconnection condition.
2. If the transferred CO line doesn’t have
answer information (analog CO), recalling
will not be presented when it is not answered.
And, the call will be disconnected after
Unsupervised Conference timer (PGM 182-
BTN 6).
3. If the transferred line is ISDN CO, recall ring
will be presented to the CO line after Transfer
Hold Recall time while the line is released.
4. If you press the original incoming CO line
button while making transfer to an external
number (Screened Transfer), the outgoing
call is disconnected and the original incoming
call is connected.
CO FLASH
Description
While on a CO line, a user can request new dial-
tone to place a new call or, when behind a PABX,
activate a PABX feature. The system allows to
each CO line to be assigned the type of flash and
a flash duration.
Operation
To generate a flash while on a CO line;
Press the [FLASH] button.
To generate a flash while on a CO line from a
SLT;
Press the hook-switch slightly and dial 55 1
(depending on Numbering Set).
Admin Programming
nFlash Type (PGM 141-BTN 7)
nCO Flash Timer (PGM 142-BTN 12)
nSLT Hook-switch Bounce Timer (PGM 182-
BTN 1)
nSLT Maximum Hook-switch Flash Timer
(PGM 182-BTN 2)
nSLT Minimum Hook-switch Flash Timer
(PGM 182-BTN 3)
Condition
1. The Flash command is not activated in ISDN
CO line.
2. A station that isn’t permitted to access CO line
cannot initiate a flash.
3. During a flash, the LED of CO line will be
flashing.

Programming Manual forDigitalKey Telephone System LDK-
300 & LDK-100 CO Line Features
1-4
CO LINE ACCESS
Description
Stations are permitted to access to outgoing CO
lines based on CO Line Group Access
programming. Keysets may use flexible buttons
assigned to access a CO line or a CO line Group
(Pool Flexible button) and loop flexible buttons. If
allowed, stations without individual CO line
button can access individual CO lines using dial
codes.
Operation
To access a CO line from a keyset,
1. Lift the Handset or press the [MON] button.
2. Press the desired CO line, Pool, or Loop
button.
3. Or, dial the individual CO line access code,
CO group access code, or the first CO line
access code from the accessible group.
To access a CO line from a SLT,
1. Lift the handset.
2. Dial the individual CO line, CO group access
code, or the first CO line access code from
the accessible group.
Admin Programming
nCO Line Choice (PGM 160-BTN 3)
nInter-digit Timer (PGM 181-BTN 8)
nCO Line Group Access (PGM 117)
nCO Line Group (PGM 141-BTN 1)
nOverride 1
st CO Line Group (PGM 161-BTN
3)
Condition
1. A keyset should have an idle appearance
(CO line/Pool button/Loop button) to access
an outgoing CO line/incoming CO line.
2.
To assign the {LOOP} button,
[TRANS/PGM] + a Flex. BTN + [TRANS/PGM] +
8 4 + [HOLD/SAVE]
3. When the Override 1
st CO line Group is
enabled, the system will search for the next
accessible CO group until a CO line is
available if there is no available CO line by
dialing CO line group access code (‘9’or ‘0’).
4. A station which is not permitted to access a
CO line will hear error while trying to access
a CO line, but the station can receive a
transferred CO line call.
5. The CO line choice (Round-robin or Last
Choice) is determined by Admin
Programming (PGM 160-BTN 3)
6. If the CO line is BRI, when a user tries to
seize B1 but the network requests to serve
B2, the system can change CO line to B2.
(There is a {B2 CO}button or {LOOP}
button.)
CO LINE GROUPS
Description
The system provides grouping of similar types of
CO lines. The groups are used for common
access by stations assigned to access the
groups. CO lines are selected from the group
based on the assigned method, round robin or
the last line, in order to minimize call collision
(glare).
Operation
The number of CO line group in each system is 8
in LDK-24 system. You can access a CO line
group by dialing 8 8 and the CO group number.
The first CO line group in each system (00) is
directed line group (it can be used with CO
button) and the last CO line group is unassigned
line group.
Admin Programming
nCO Line Group (PGM 141-BTN 1)
nCO Line Choice (PGM 160-BTN 3)
Condition
1. Unused CO lines should be assigned to
unused CO group(9) to prevent to be
accessed by a station.
2. The first CO line group (00) is directed line
group and it can be used with {CO line}

Programming Manual forDigitalKey Telephone System LDK-
300 & LDK-100 CO Line Features
1-5
button (Private Line).
CO LINE NAME DISPLAY
Description
While a CO line call is received the CO line
number is displayed on the LCD. When the CO
line name is assigned and CO line Name
Selection for each CO line is set, the CO line
name is displayed instead of the CO line number.
Admin Programming
nCO line Name Assignment (PGM 142-BTN 2)
nCO Line Name Display (PGM 142-BTN 1)
Condition
1. CO line name can be assigned to each CO
line.
2. Each CO line name has max. 12 characters.
CO LINE QUEUING
Description
When a user encounters a busy tone during
accessing a CO line or a CO line group, the user
can request a call back (queue) when the CO
line is available. The station will receive a call
back when the busy CO line or a CO line in the
CO line group becomes available.
Operation
To activate queuing while receiving busy tone,
Press the [CALLBK] button.
Admin Programming
nCO Line Queuing (PGM 112-BTN 5)
Condition
1. When the queued CO line becomes idle or a
CO line becomes available in the group, the
oldest queued station will receive signal.
2. A station can make only one CO line queuing
request at one time. If the station tries to
make another CO line queuing, the previous
one is canceled and the later one is available.
3. When the queued CO line available, the
station will receive ring signal regardless of
station signal mode.
CO LINE RING ASSIGNMENT
Description
Each station in the system can be programmed
to provide an audible signal when the system
detects an incoming call on assigned CO lines.
Separate ring assignments are made for day,
night and weekend mode operation. Also, the
audible signal at the station can be delayed by 1
to 9 ring cycles allowing other stations to answer
the call first.
Operation
The LED of [DND/FOR] button and LCD on the
attendants’ keyset indicate current ring mode;
Day mode (LED off, LCD shows station number
and ICM answer mode.) -> On-demand mode
(LED is flashing, LCD shows ‘ON DEMAND’) ->
Night mode (LED is lighting, LCD shows
‘NIGHT’) -> Weekend mode (LED is flashing,
LCD shows ‘WEEKEND’)
To change Night mode,
Press the [DND/FOR]button at system attendant.
To change On-demand mode,
1. Press the [DND/FOR] button at system
attendant in day mode.
2. If there is any station assigned to ring in on-
demand mode at the system, the [DND/FOR]
button is flashing and it is changed to on-
demand mode.
To change Weekend mode,
1. Press the [DND/FOR]button at system
attendant. (It will be toggling by pressing
[DND/FOR] button.
2. It will be operated as programmed in Weekly
Time Table.
Admin Programming

Programming Manual forDigitalKey Telephone System LDK-
300 & LDK-100 CO Line Features
1-6
nCO Line Ring Assignment (PGM 144)
nWeekly Time Table (PGM 233)
Condition
1. All CO lines can be assigned to ring at all
stations by Admin Programming during Day,
Night, weekend and their combination mode.
2. To receive CO line ring. The station should
have {CO}button or {LOOP} button.
3. If a station is assigned to Weekend mode, it
will be operated as programmed in Weekly
Time Table (PGM 233).
4. The Day, Night, On-demand and Weekend
modes can be set by Attendant manually.
5. If manual and automatic ring mode service is
set simultaneously, the system will follow
only automatic ring mode service.
CO LINE RELEASE GUARD TIME
Description
This is the time taken for exchange switching
equipment to be fully restored to the idle condition
after release of a CO line by a station.
Admin Programming
nCO Line Release Guard Timer
(PGM 180-BTN 19)
Condition
1. The CO line is considered to be busy in CO
line Release Guard Time.
2. The CO line Release Guard time is not
applied to analog DID line.
CO RING DETECT –Analog CO only
Description
To detect ring cadence from a CO line, there are
two timers; Ring Detect and Ring Stop allow for
flexible ring detection on an incoming CO line call.
Admin Programming
nCO Line Ring On Timer (PGM 180-BTN 21)
nCO Line Ring Off Timer (PGM 180-BTN 20)
Condition
1. The CO line ring should make ring over CO
Ring On time and should be detected
continuously in CO line Ring Off time.
2. The CO line Ring On time or CO line Ring
Off time cannot be assigned to each CO line.
(System Base)
CO STEP CALL –Analog CO only
Description
When a station receives a busy tone after placing
a CO line call, the user can dial a CO line
number which has the same first digits as the
called busy CO line without dialing the full
number.
Operation
To use CO Step Call when receiving busy tone,
press the [SPEED] button and dial the last 1 digit.
Then the previous call is terminated and new call
is established.
DIALPULSESENDING–AnalogCOonly
Description
Each CO line is programmed to provide the
appropriate signaling to the Central Office. A CO
line can be programmed to send pulse signal at
10pps with a break/make ratio of 60/40 or 66/33.
Digits dialed by the user are converted to the
proper signal for the CO line and sent over the
CO line.
Operation
Dialing a phone number, it is changed to Dial
Pulse signal and the phone number is dialed.
Admin Programming
nPulse Dial Speed Ratio (PGM 176)

Programming Manual forDigitalKey Telephone System LDK-
300 & LDK-100 CO Line Features
1-7
nPause Timer (PGM 181-BTN 11)
nCO Line Signal Type (PGM 141-BTN 6)
Condition
1. Pause time will be inserted automatically
before sending the dial pulse. The pause
time is set by Admin Programming (PGM
181-BTN 11).
DIAL PULSE TO TONE SWITCH OVER
Description
On a pulse dial CO line, the user can request that
the system switch the signaling mode from
pulses to DTMF signals.
It allows the user to access outside facilities that
require incoming DTMF signals such as banking
services, etc.
Operation
To switch from pulse to DTMF while on a pulse
CO line;
1. Dial *.
2. Dial digits as required.
Admin Programming
nCO Line Signaling Type (PGM 141-BTN 6)
Condition
1. This command can be used in the CO line of
pulse signal mode. After this command,
pause is inserted and '' is not dialed in CO
line.
2. In SLT, '' is not recognized.
3. In Redial operation, '' is not recognized.
DISPLAY SECURITY
Description
The dialed phone number may not be displayed
in the LCD while on a speed dial.
Operation
Pressing *at the first digit in a speed dial, it is
operated with display security.
Condition
1. Dialed phone numbers with Display Security
are included in the SMDR information.
2. This feature applies to the transferred or
recalled CO lines.
3. This feature applies to Redial operation.
DISTINCT CO RING
Description
The system provides different ring type in each
CO line. Four ring types are available allowing
users to distinguish which CO line is ringing.
Admin Programming
nCO Distinct Ring (PGM 142-BTN 5)
nRing Frequency (PGM 422)
DTMF SIGNAL SENDING
Description
When a CO line is assigned as DTMF signal in
the Admin. Programming, the system may send
DTMF signal to the CO line.
Operation
When placing a CO line call at a station, it is
dialed with DTMF signal mode.
Admin Programming
nInter-digit Timer (PGM 181-BTN 8)
nCO Line Signal Type (PGM 141-BTN 6)

Programming Manual forDigitalKey Telephone System LDK-
300 & LDK-100 CO Line Features
1-8
EXECUTIVE/SECRETARY TRANSFER
Description
Stations in the system can be assigned as
Executive/Secretary pairs. Intercom and
transferred calls to the executive station will be
transferred to the secretary station if the
executive is in DND state.
The max. number of Executive/Secretary pairs is
6 in LDK-24.
Operation
To activate Executive/Secretary Transfer from the
Executive's keyset,
Press the [DND/FOR] button.
Admin Programming
nDo Not Disturb (PGM 111-BTN 3)
nExecutive/Secretary Transfer (PGM 229)
Condition
1. Secretary can pass a call to Executive when in
DND state by using camp-on feature.
2. One Executive can have multiple Secretaries
within maximum pairs, and one secretary can
be assigned to multiple executives within
maximum pairs.
3. When the executive is in DND, the secretary
can transfer a CO line call or make camp-on.
4. It is possible to make a chain to assign
Executive/Secretary pairs. It means that a
Secretary may be an Executive of another
Executive/Secretary pair. If an Executive and
the Secretary which has own Secretary are
busy, a call will be forwarded to the second
Secretary of Executive/Secretary chain. (It
cannot be a loop chain.)
5. If an Executive has multiple secretaries and
the first secretary is busy, a call will be
forwarded to the next Secretary.
6. If an Executive has multiple secretaries, a
secretary can forward a call to another
secretary. But, secretary cannot forward a call
to Executive.
7. If an Executive makes a call forward to non-
secretary station, a call to Executive will be
routed to assigned station.
8. When both Executive and Secretary are busy,
camp-on / transferred calls / messages is
remained at the last Secretary station in the
chain.
HOLD
Description
CO lines can be placed in a waiting state such
that other stations in the system will be unable to
access the CO line. On exclusive hold, only the
station placing the CO line can access the CO
line and on system hold, other stations in the
system can access the held CO line.
Operation
To place a CO line on Exclusive/System Hold
from a keyset,
Press the [HOLD/SAVE] button once or twice. (It
depends on Hold Preference.)
To place a CO line on Exclusive/System Hold
from a SLT (depends on Hold Preference),
Make hook-flash and dial 5 6 0.
To access a CO line on Exclusive/System Hold
from the holding keyset,
1. Lift the handset.
2. Press the CO line button.
3. Or dial 8 # and the CO line number.
To access a CO line on Exclusive/System Hold
from the holding SLT,
1. Lift the handset.
2. Dial 8 *
Admin Programming
nHold Preference (PGM 160-BTN 8)
nExclusive Hold Recall Timer (PGM 180-BTN 4)
nSystem Hold Recall Timer (PGM 180-BTN 6)
nTransfer Recall Timer (PGM 180-BTN 7)
nI-Hold Recall Timer (PGM 180-BTN 5)
nATD Recall Timer (PGM 180-BTN 1)
Condition
1. The CO line placed on Exclusive Hold will

Programming Manual forDigitalKey Telephone System LDK-
300 & LDK-100 CO Line Features
1-9
flash in the station and the LED of CO line
will light in other stations.
2. The CO line placed on System Hold will
flash in all stations.
3. When Exclusive Hold is set in a station,
Exclusive Hold Recall Timer is initiated. After
Exclusive Hold Recall Timer is expired, the
original station will receive recall for I-Hold
Recall Timer. Also, When System Hold is set
in a station, System Hold Recall Timer is
initiated. After System Hold Recall Timer is
expired, the original station will receive recall
for I-Recall Timer.
4. When the I-Hold Recall Timer is expired,
attendant will also receive a recall for
Attendant Recall Timer. If the call remains
unanswered for Attendant Recall time, the
call is disconnected.
Hold Preference
Description
A user can place a CO line call in a waiting state
so that others may or may not access the held
CO line, System and Exclusive Hold respectively.
When the CO line is placed on hold using [HOLD
/SAVE] button, the first depression of the button
places the CO line in the assigned preferred
holding state. A subsequent depression of [HOLD
/SAVE] button will change the CO line to the non-
preferred holding state.
Operation
1. When the Exclusive Hold is assigned,
Other station in the group cannot seize the
CO line.
2. When the System Hold is assigned,
Other station in the group can seize the CO
line and answer.
Admin Programming
nHold Preference (PGM 160-BTN 8)
Automatic Hold
Description
When a keyset user places an intercom call
using a DSS button during connecting with an
active CO line call, it is automatically placed on
hold. In addition, the station can be programmed
to support CO line to CO line automatic hold. In
this case, when the user of a keyset selects a CO
line while on a CO line, the new CO line is seized
and the previous CO line is placed on the
preferred hold selection.
Operation
To use Automatic Hold while on a CO line call,
1. Press a {CO line}button.
2. When the CO line is connected, the previous
selected CO line is placed on preferred hold
state.
Admin Programming
nAutomatic Hold (PGM 112-BTN 2)
nHold Preference (PGM 160-BTN 8)
ISDN -ADVICE OF CHARGE
Description
The AOC service provides of outgoing call
charging to the user in public ISDN. According to
the admin programming, the saved and printed
information is provided to the PC or user's LCD.
This function is applicable to the most European
countries.
Operation
During the conversation or after release a CO line
call, the ISDN facility IE carry the AOC
information. User can see it with SMDR print after
a call.
* CHARGE NOT AVAILABLE
al 08 02 01 ** 02 01 23 05 00
* FREE OF CHARGE
al 0a 02 01 ** 02 01 23 30 02 81 00
* NORMAL CHARGING
al 20 02 01 ** 02 01 23 30 18 30 16 al 05
81 03 @@ @@ @@ a2 07 81 05 %% %% %% %% %%
82 01 01 82 01 01
[**] : The rule is changed in each call.
[@@ @@ @@] : It means charging current unit. (IA5)
[%% %% %% %% %%] : It means real current value

Programming Manual forDigitalKey Telephone System LDK-
300 & LDK-100 CO Line Features
1-10
displayed with
You can see it with SMDR print after the call.
Admin Programming
nAdvice Of Charge (PGM 200-BTN 1)
nSMDR Attribute (PGM 177)
Condition
1. It is displayed on the LCD instead of call
timer and changed based on the receipt of
each call charging information.
2. The information of AOC includes the Unit or
Currency.
ISDN -CLIP (CALLING LINE
IDENTIFICATION PRESENTATION)
Description
ISDN CLI is the telephone number of caller. By
using of this, LDK user can recognize the
incoming CO caller’s information and send the
telephone number of himself when he make a
outgoing CO call.
When the called party receives an incoming CO
call that has a phone number of the calling party,
the called party can see the phone number of
incoming CO caller on LCD, if the called party
allows the phone number to be presented.
And the CLI can be printed to RS-232C port, if
the CLI print enabled in the admin program.
Operation
When an ISDN CO line call with CLI is received,
1. A CO line call is received with ISDN.
2. While ringing, the CLI (Calling Line
Identification) is displayed on LCD. If the CLI
is matched with stored on a speed dial bin,
then the name of speed bin data can be
displayed.
When an ISDN outgoing CO line call with CLI.
1. Seize an outgoing CLI enabled ISDN CO.
2. Dial the destination telephone number.
3. The destination station receives CO ring with
the caller’s CLI.
Admin Programming
nCLIP -Station Base (PGM 114-BTN 1)
nCLI Name Display (PGM 114-BTN 11)
nCLI Print (PGM 200-BTN 6)
nCOLP Table (PGM 201)
nCLIP Table Index (PGM 143-BTN2)
nCLIR (PGM 114-BTN14)
Condition
1. CLIP is applied to only ISDN CO line.
2. Max. 15 digits will be displayed as a CLI
number.
3. When the power of system is off, the stored
CLI messages will not be erased.
4. The system sends the CLI to RS-232C port
regardless of CLIP setting.
ISDN –COLP (CONNECTED LINE
IDENTIFICATION PRESENTATION)
Description
CLIR(Calling Line Identification Restriction) &
COLR(Connected Line Identification Restriction)
are used that calling party & called party inform
to PX that they don’t want to send their phone
number to the other party.
In the CLIR set to ON system, if an outgoing
ISDN CO call is tried, then the calling party
number will not send to the called party. In the
COLR set to ON system, if an incoming ISDN CO
call is received and answered, then the called
party phone number will not sent to the calling
party.
Admin Programming
nCOLP (PGM 114-BTN 2)
nCOLR (PGM 114-BTN15)
nCOLP Table (PGM 201)
nCOLP Table Index (PGM 143-BTN1)
ISDN –CLIR (CALLING LINE
IDENTIFICATION RESTRICTION) /
COLR (CONNECTED LINE
IDENTIFICATION RESTRICTION)
Description

Programming Manual forDigitalKey Telephone System LDK-
300 & LDK-100 CO Line Features
1-11
The connected line or calling line number may be
restricted. If CLIR is set to ON, calling party
number will not be sent to the called party when
an ISDN CO line call is made. If COLR is set to
ON, the called party number will not be sent to
the calling party when an ISDN CO line call is
received and answered.
Admin Programming
nCLIR (PGM 114-BTN 14)
nCOLR (PGM 114-BTN 15)
ISDN-KEYPAD FACILITY SERVICE
Description
The system enables users to send Keypad
Facility IE (Information Element) instead of called
party IE for sending information on ISDN
interface to the network when pressing the
programmed button as {Keypad Facility}. Some
specific features to be supported by network can
be operated by dialing each code at the station.
Operation
1. When pressing the programmed {Keypad
Facility} button after seizing a CO line
(ISDN), the system will send the dialed
digits as Keypad Facility IE instead of Called
Party Number IE in INFORMATION
message to the network.
When the user releases the CO line (ISDN), or
pressing the programmed {Keypad Facility}
button during dialing digits, Keypad Facility IE
Sending will be stopped automatically.
Admin Programming
nKeypad Facility Access (PGM 114-BTN 6)
Condition
1. To assign {Keypad Facility} flexible button,
[TRANS/PGM] + Flex. BTN + [TRANS/PGM]
+ 8 9 + [HOLD/SAVE]
2. The Keypad Facility Access Authority (PGM
114-BTN 6) should be ON to use this feature.
3. This feature can be activated by pressing
the {Keypad Facility} button after seizing a
CO line (ISDN).
4. When this feature is activated, the system
starts to send Keypad Facility IE instead of
Called Party Number IE regardless of
CONNECT message from the network
unless pressing {Keypad Facility} button to
deactivate it. So the system will continue to
send Keypad Facility IE instead of DTMF
tone even after CONNECT message is
received from the network.
5. If the Speed Dial is stored with [FLASH] as
the first digit for ISDN line and the station
has the Keypad Facility Access authority, the
digits after [FLASH] command will be sent
as Keypad Facility and the feature will be
deactivated after sending all digits.
6. When any of the following features are
encountered after the Keypad Facility is
activated, the feature will be deactivated
automatically;
-Pressing function keys as [REDIAL],
[TRANS/PGM], [FLASH], [HOLD/SAVE],
[CONF]
-Pressing CO keys as CO, CO Group,
Loop
-Pressing Flex. Buttons assigned some
features as {SPEED}, {DSS}, {Call Park},
{Keypad Facility}
-Making On-hook
-When DISCONNECT message is received
from the network
7. This feature may not be operated depending
on the services that require to handle two
call references at the same time after B
channel connection is made as Hold &
Retrieving, Conference, etc.
8. The Speed Dial Numbers started with
[FLASH] (display “D”) send saved digits as
Keypad Facility IE instead of Called Party
Number IE. After sending all Speed Dial
Numbers, this feature is deactivated
automatically.
9. When the system receives a Called Party
Number IE during sending Keypad Facility
IE, the system will stop sending the Keypad
Facility IE.

Programming Manual forDigitalKey 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 LNR2) [FLASH] + 27
Memo Tel
Interrogation of
service status
[FLASH] + 28
Memo Tel
Interrogation of
MSRS3)
[FLASH] + 29
National
only, B1)
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
nISDN 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#.

Programming Manual forDigitalKey Telephone System LDK-
300 & LDK-100 CO Line Features
1-13
3. ISDN Call Hold feature is available during
conversation.
4. The line, which is associated with this
ISDN supplementary service, can not be
transferred to other stations or can not be
retrieved from other stations. And the held
channel can be retrieved only by the
station which held the channel before.
5. When a call is on hold, the associated LED
for the line will flash at 480 IPM in the
station that uses the line. And all the
LED’s will be ON (busy) in the other
stations.
6. When a call is on hold and the user make
a new call, the associated LED for the line
at the station will be ON.
ISDN –BROKER CALL
Description
This feature allows a station user engaged in
one ISDN CO line to hold that call and can
originate another call by using the same
channel. Once the second call is established,
the originating station may alternate between
calls carrying on a private conversation with
either party.
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.
Admin Programming
nISDN 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#.
3. ISDN Call Hold feature is available during
conversation.
4. ISDN-Broker Call is available during
conversation.
5. The ISDN CO line, which is associated
with this ISDN-Broker call, can not be
transferred to the other station. And the
held channel can be retrieved only by the
station which held the channel.
6. ISDN-Broker Call is associated with ISDN-
3 Party Conference and Call Waiting
ISDN –3 PARTY CONFERENCE
Description
This feature allows the user to make 3 party
conversation with one ISDN CO channel.
.
Operation
1. To make a 3 party conversation;
Press [FLASH] + [CONF] or {SUPP
CONF} when a call is in Supplementary
Hold and a call in conversation.
2. To hold a party during 3 party
conversation
Press [FLASH] + [HOLD] or {SUPP
HOLD} during 3 party conversation.

Programming Manual forDigitalKey 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.