1. QSIG(Voice Networking)
1. Overview
2. Overall Networking Configuration
3. LG IP Networking Solution
4. Feature
5. PRI QSIG Connection
6. VoIP QSIG Connection
7. Feature Operation

2. 1. Overview
LDK Voice networking provides a way of communication to inter-work
with networked system over Internet(VoIP) or ISDN.
LDK provides uniform numbering plan for all users in the network
The networked systems can be considered as one system.
Extension in any system can talk with other system like extension call
Up to 72 systems can be inter-working via public or private network
LDK supports the total solution from Home office to Headquarter office
with LG Systems (IP LDK-100/300/300E, IP LDK-20, NEXER and IPECS)
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3. 2. Overall Networking Configuration
ISDN PRI & IP Network
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4. 3. LG IP Networking Solution
DSL or
Cable Modem
Home Office
RSG
Router
LDK-300/300E
BLF Manager
Headquarter Office
IP Network
NEXER
Small Branch Office
Router
LDK-100
Branch Office
Router
LIK-300
Local Main Office
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5. The Following QSIG Features are provided
Net Call
Net Call Transfer (Screen / Unscreened)
Net Call Forward (Unconditional / Busy / No Answer / Busy No Answer)
Name Display
Call Offer(Camp-On)
Message Waiting Indication (MWI by Request)
Call Completion (Call Back)
CO Transit-In/Out
Calling Line Identification(CLI)
DECT Mobility
Absent Text Message Service
Do Not Disturb (DND) Service
Centralized Attendant Service (CAS)
Busy Lamp Field (BLF) Service
Centralized SMDR
Centralized VMS
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6. A Sample of QSIG Connection via ISDN PRI
5. PRI QSIG Connection
Network Configuration
A Sample of QSIG Connection via ISDN PRI
ISDN
Master
Slave P R I B M P B P R I B M P B
STA NO
100 ~ 199
STA NO
200 ~ 299
NT mode
TE mode
LAN
Minimum Requirements:
1. 2 PRIB cards
2. QSIG Lock Key for each system
Additional Requirements
1. LANU of MPB
2. PC for BLF Manager
3. HUB and IP Address for IP Connection
BLF Manager
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7. 5. PRI QSIG Connection Basic Programming Master System Slave System
1. Station range: 100~199
2. MPB IP Address:
3. CO Line type : Type 3(ISDN DID)
4. DID Conversion Type : Type 1
5. Networking Table
PGM320
BTN 1 : Net Enable
PGM321
BTN 4 (BLF MGR) :
PGM322 (Net CO)
BTN 1 : Net CO Group = 01
BTN 4 : Net CO Type = NET
PGM324
BIN 00 (Master, itself)
BTN 1 (Usage) = NET
BTN 2 (STA Number) = 1#**
BTN 3 (Net CO Gr) = 00
BIN 01 (Slave system)
BTN 2 (STA Number) = 2**
BTN 3 (Net CO Gr) = 01
BTN 4 (CPN) = Empty
Station Number
1. Station range: 200~299
2. MPB IP Address:
3. CO Line type : Type 3(ISDN DID)
4. DID Conversion Type : Type 1
5. Networking Table
PGM320
BTN 1 : Net Enable
PGM321
BTN 4 (BLF MGR) :
PGM322 (Net CO)
BTN 1 : Net CO Group = 01
BTN 4 : Net CO Type = NET
PGM324
BIN 00 (Slave, itself)
BTN 1 (Usage) = NET
BTN 2 (STA Number) = 2#**
BTN 3 (Net CO Gr) = 00
BIN 01 (Master system)
BTN 2 (STA Number) = 1**
BTN 3 (Net CO Gr) = 01
BTN 4 (CPN) = Empty
For BLF Service
PRIB for Net Path
PRIB for Net Path
NET or PSTN
Own STA number
CO doesn’t need
Net for Net Call
PSTN for Transit
Refer to PGM322
Direct connection
Note: Each system in Networking range should have its corresponding programming like the above.
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8. VoIP Connection between Systems
6. VoIP QSIG Connection
Network Configuration
VoIP Connection between Systems
Master
Slave V O I B M P B V O I B M P B
STA NO
100 ~ 199
STA NO
200 ~ 299
LAN
Minimum Requirements:
1. 2 VOIB cards
2. IP Networking Lock Key for each system
3. Hub and IP Address for IP Connection
Additional Requirements
1. LANU of MPB
2. PC for BLF Manager
BLF Manager
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9. 6. VoIP QSIG Connection Basic Programming Master System Slave System
1. Station range : 100~199
2. MPB IP Address :
3. VoIB IP Address :
4. CO Line type : Type 3(ISDN DID)
5. DID Conversion Type : Type 1
6. Networking Table
PGM320
BTN 1 : Net Enable
PGM321
BTN 4 (BLF MGR) :
PGM322 (Net CO)
BTN 1 : Net CO Group = 01
BTN 4 : Net CO Type = NET
PGM324
BIN 00 (Master, itself)
BTN 1 (Usage) = NET
BTN 2 (STA Number) = 1#**
BTN 3 (Net CO Gr) = 00
BIN 01 (Slave system)
BTN 2 (STA Number) = 2**
BTN 3 (Net CO Gr) = 01
BTN 4 (CPN) =
Station Number
1. Station range : 200~299
2. MPB IP Address :
3. VoIB IP Address :
4. CO Line type : Type 3(ISDN DID)
5. DID Conversion Type : Type 1
6. Networking Table
PGM320
BTN 1 : Net Enable
PGM321
BTN 4 (BLF MGR) :
PGM322 (Net CO)
BTN 1 : Net CO Group = 01
BTN 4 : Net CO Type = NET
PGM324
BIN 00 (Slave, itself)
BTN 1 (Usage) = NET
BTN 2 (STA Number) = 2#**
BTN 3 (Net CO Gr) = 00
BIN 01 (Master system)
BTN 2 (STA Number) = 1**
BTN 3 (Net CO Gr) = 01
BTN 4 (CPN) =
For BLF Service
VoIP line for Net Path
PRIB for Net Path
NET or PSTN
Own STA number
CO doesn’t need
Net for Net Call
PSTN for Transit
Refer to PGM322
IP address
8/19

10. 7. Feature Operation Net Call [Call Flow] 9/19 [Admin Programming]
■ Networking Basic Attribute : PGM 320
■ Networking CO Line Attribute : PGM 322
■ Networking Routing Table : PGM 324
Note : During conversation, all telephony features are
available.(For example, call transfer, hold, conference and etc.)
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11. 7. Feature Operation Net Call Transfer PSTN or ISDN Internet
[Call Flow]
Internet
PSTN or ISDN
Step 3
202
100
Step 1 ~ 2
Step 4
Step 5
Step 6
[Admin Programming]
■ Networking Basic Attribute : PGM 320
■ Networking Transfer Mode : PGM 321-FLEX1
■ Networking CO Line Attribute : PGM 322
■ Networking Routing Table : PGM 324
10/19

12. 7. Feature Operation Net Call Forward PSTN or ISDN Internet
[Call Flow]
Internet
PSTN or ISDN
Step 1
202
100
Step 2
Step 3
Step 4
Step 5
[Admin Programming]
■ Call Forward Attribute : PGM 111-FLEX2
■ Networking Basic Attribute : PGM 320
■ Networking Transfer Mode : PGM 321-FLEX1
■ Networking CO Line Attribute : PGM 322
■ Networking Routing Table : PGM 324
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13. 7. Feature Operation Call Offer Internet [Call Flow] Step 1 Step 3
202
100
Step 3
BUSY
Step 2
Step 4
Step 5
[Admin Programming]
■ Networking Basic Attribute : PGM 320
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14. 7. Feature Operation Call Completion Internet BUSY [Call Flow] Step 1
202
100
Step 3
BUSY
Step 2
Step 4
Step 5
[Admin Programming]
■ Networking Basic Attribute : PGM 320-FLEX8
13/19

15. 7. Feature Operation CO Transit-In PSTN or ISDN Internet
[Call Flow]
Internet
PSTN or ISDN
202
Step 1
Step 3
Step 4
Step 5
Step 2
Additional Programming
Master :
PGM 143 FLEX 4 (DID Conversion Type) = 2
PGM 231 (Flexible DID Table) = Assign Slave extension
[Admin Programming]
■ Networking Routing Table : PGM 324
14/19

16. 7. Feature Operation CO Transit-Out PSTN or ISDN Internet
[Call Flow]
Internet
PSTN or ISDN
202
Step 4
Step 2
Step 1
Step 5
Step 3
Additional Programming
Master :
PGM 322 BTN 1 (Net Col Group) = 02 for PSTN Lines
BTN 4 (Net CO Type) = PSTN
PGM 324 BIN 10
-FLEX 1 (Usage) = PSTN
-FLEX 2 (Net Code) = 9 (transit code)
 Delete 1st CO Group access code
-FLEX 3 (Net CO Group) = 02
Slave :
-FLEX 3 (Net CO Group) = 01
-FLEX 4 (CPN) =
-FLEX 7 (DGT Repeat) = YES
[Admin Programming]
■ Networking CO Line Type : PGM 322-FLEX2
■ Networking Routing Table : PGM 324
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17. 7. Feature Operation BLF Service Internet Step 2 BUSY Step 1
[Call Flow]
Internet
Step 1
202
100
BUSY
BLF Manager
Step 2
[Application]
■ BLF Manager Software(PC Application)
[Admin Programming]
■ Networking Supplementary Attribute : PGM 321
- TCP Port Assign(FLEX2)
- UDP Port Assign(FLEX3)
- BLF Manager IP Address Assign(FLEX4)
- Duration of BLF Status(FLEX5)
■ Networking Routing Table : PGM 324
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18. 7. Feature Operation DECT Mobility PSTN or ISDN Internet
[Call Flow]
PSTN or ISDN
Internet
Additional Programming
The WHTU should be registered both systems and the
physical port number of WHTU should be same on whole systems.
Master :
PGM 324 BIN 01
- BTN 6(MPB IP Address)assign MPB IP address of slave
Slave :
- BTN 6(MPB IP Address)assign MPB IP address of master
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19. 7. Feature Operation CAS CO LINE Internet Or ISDN CAS Dial ATD Call
LDK-A
(Master)
LDK-D
(Slave)
LDK-B
LDK-C
The attendant call from a station of any
networking system can be routed to the CA
(Centralized Attendant) of CAS master system.
From the other networking systems, if a station
dials the attendant call code, then the call
is routed to the centralized attendant
station of LDK-A.
[Admin Programming]
■ Networking CAS Enable : PGM 320 – FLEX6
■ Attendant DND Button : PGM 115 – STA PGM Button(Type6) : 55
■ Net Attendant Assign : PGM 164 – Net DSS cannot be assigned to the System Attendant.
■ DID/DISA Destination : PGM 167
■ CO Ring Assignment : PGM 144
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20. Demo & Practice Net Call Net Call Transfer (Screen / Unscreened)
Net Call Forward (Unconditional / Busy / No Answer / Busy No Answer)
Name Display
Call Offer(Camp-On)
Message Waiting Indication (MWI by Request)
Call Completion (Call Back)
CO Transit-In/Out
Calling Line Identification(CLI)
Absent Text Message Service
Do Not Disturb (DND) Service
Centralized Attendant Service (CAS)
Busy Lamp Field (BLF) Service
Centralized SMDR/VMS
19/19

21. PSTN Internet (A) LDK-100(1***) (B) LDK-300(2***) (C) LDK-300(3***)
WAN M P B D T I R S L C O M P B D T I S L C O R V M P B D T I S L V O
2000
2001
2012 .
3000
3001
3012 .
1000
1001
1012 .
(A) LDK-100(1***)
(B) LDK-300(2***)
(C) LDK-300(3***)
■ MPB IP :
■ VOIB IP :
■ PRIB(A↔B)
■ CO Group Setting
- PRIB 005~034(NET CO : 01 )
- LCOB 001~004(NET CO : 02 )
■ MPB IP :
■ VOIB IP :
■ PRIB(B↔A)
■ VOIB(B↔C)
■ CO Group Setting
- PRIB 005~034(NET CO : 01 )
- VOIB 035~042(NET CO : 02 )
- LCOB 001~004(NET CO : 03 )
■ MPB IP :
■ VOIB IP :
■ VOIB(C↔B)
■ CO Group Setting
- VOIB 035~042(NET CO : 01 )

22. PSTN Internet (A) LDK-100(1***) (B) LDK-300(2***) (C) LDK-300(3***)
WAN M P B D T I R S L C O M P B D T I S L C O R V M P B D T I S L V O
2000
2001
2012 .
3000
3001
3012 .
1000
1001
1012 .
(A) LDK-100(1***)
(B) LDK-300(2***)
(C) LDK-300(3***)
MPB IP :
VOIB IP :
[Admin Programming]
PGM320-BTN1 NET ENABLE : ON
PGM322-BTN1 NET CO GRP : 01/02
PGM322-BTN4 NET CO TYPE : NET/PSTN
PGM324 NET NUM PLAY TABLE
- 00 : NET 1#*** (00)
- 01 : NET 2*** (01)
02 : NET 3*** (01)
- 03 : PSTN/77 (02) Digit Repeat : Yes
MPB IP :
VOIB IP :
[Admin Programming]
PGM320-BTN1 NET ENABLE : ON
PGM322-BTN1 NET CO GRP : 01/02/03
PGM322-BTN4 NET CO TYPE : NET/NET/PSTN
PGM324 NET NUM PLAY TABLE
- 00 : NET 2#*** (00)
01 : NET 1*** (01)
02 : NET 3*** (02) (VOIP CPN INFO)
- 03 : PSTN/77 (03) Digit Repeat : No
MPB IP :
VOIB IP :
[Admin Programming]
PGM320-BTN1 NET ENABLE : ON
PGM322-BTN1 NET CO GRP : 01
PGM322-BTN4 NET CO TYPE : NET
PGM324 NET NUM PLAY TABLE
- 00 : NET 3#*** (00)
- 01 : NET 1*** (01) (VOIP CPN INFO)
02 : NET 2*** (01) (VOIP CPN INFO)
03 : PSTN/77 (01) (VOIP CPN INFO)
Digit Repeat : Yes

23. VoIP Connection between Systems
6. VoIP QSIG Connection
Network Configuration
VoIP Connection between Systems
PSTN
Master
Slave
“9” : CO Access Code L C O B 4 V O I B M P B V O I B M P B
STA NO
100 ~ 199
STA NO
200 ~ 299
LAN
Master System
Slave System
1. Station range : 100~199
2. MPB IP Address :
3. VOIB IP Address :
4. CO Line type :
(LCOB : Normal, VOIB : ISDN DID)
5. DID Conversion Type : Type 1
6. CO Range :
(LCOB : 1~4, VOIB : 5~12)
7. Net CO Group :
(VOIB : Net CO Group 01)
(LCOB : Net CO Group 02)
1. Station range : 200~299
2. MPB IP Address :
3. VOIB IP Address :
4. CO Line type :
(VOIB : ISDN DID)
5. DID Conversion Type : Type 1
6. CO Range :
(VOIB : 1~8)
7. Net CO Group :
(VOIB : Net CO Group 01)
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24. 6. VoIP QSIG Connection Basic Programming Master System Slave System
8. Networking Table
PGM320
BTN 1 : Net Enable
PGM322 (Net CO)
BTN 1 : Net CO Group = 01
BTN 4 : Net CO Type = NET or PSTN
- VOIB : Net CO Group 01/NET
- LCOB : Net CO Group 02/PSTN
PGM324
BIN 00 (Master, itself)
BTN 1 (Usage) = NET
BTN 2 (STA Number) = 1#**
BTN 3 (Net CO Gr) = 00
BIN 01 (Slave system)
BTN 2 (STA Number) = 2**
BTN 3 (Net CO Gr) = 01
BTN 4 (CPN) =
BIN 02 (Master system) (*Note 2)
BTN 1 (Usage) = PSTN
BTN 2 (STA Number) = 9 (*Note 1)
BTN 3 (Net CO Gr) = 02
8. Networking Table
PGM320
BTN 1 : Net Enable
PGM322 (Net CO)
BTN 1 : Net CO Group = 01
BTN 4 : Net CO Type = NET or PSTN
- VOIB : Net CO Group 01/NET
PGM324
BIN 00 (Slave, itself)
BTN 1 (Usage) = NET
BTN 2 (STA Number) = 2#**
BTN 3 (Net CO Gr) = 00
BIN 01 (Master system)
BTN 2 (STA Number) = 1**
BTN 3 (Net CO Gr) = 01
BTN 4 (CPN) =
BIN 02 (Master system) (*Note 2)
BTN 1 (Usage) = PSTN
BTN 2 (STA Number) = 9 (*Note 1)
BTN 7 (Digit Repeat) = Yes
* Note 1 : Delete 1st CO Group Access Code (PGM107) in advance.
* Note 2 : A station in slave system can access the LCOB lines of master system by dialing “9”.
8/19

25. VoIP Connection between Master system and Slave system
IP Networking for VKX
Network Configuration
VoIP Connection between Master system and Slave system
Master System
Slave System
LB01
LB04
LB01
LB04 D S I B V O I B M P B D S I B V O I B M P B
STA NO
100 ~ 199
STA NO
200 ~ 299
LAN
1. Station range : 100~199
2. MPB IP Address :
3. VOIB IP Address :
1. Station range : 200~299
2. MPB IP Address :
3. VOIB IP Address :
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26. IP Networking for VKX Basic Programming Master System Slave System
1. Station range : 100~199
2. MPB IP Address :
3. VOIB IP Address :
4. CO Line type : (VOIB : ISDN DID)
5. DID Conversion Type : Type 1
6. CO Range : (VOIB : 1~8)
7. Networking Table
PGM320
BTN 1 : Net Enable
PGM322 (Net CO)
BTN 1 : Net CO Group = 01
BTN 4 : Net CO Type = NET
PGM324
BIN 00 (Master, itself)
BTN 1 (Usage) = NET
BTN 2 (STA Number) = 1#**
BTN 3 (Net CO Gr) = 00
BIN 01 (Slave system)
BTN 2 (STA Number) = 2**
BTN 3 (Net CO Gr) = 01
BTN 4 (CPN) =
1. Station range : 200~299
2. MPB IP Address :
3. VOIB IP Address :
4. CO Line type : (VOIB : ISDN DID)
5. DID Conversion Type : Type 1
6. CO Range : (VOIB : 1~8)
7. Networking Table
PGM320
BTN 1 : Net Enable
PGM322 (Net CO)
BTN 1 : Net CO Group = 01
BTN 4 : Net CO Type = NET
PGM324
BIN 00 (Slave, itself)
BTN 1 (Usage) = NET
BTN 2 (STA Number) = 2#**
BTN 3 (Net CO Gr) = 00
BIN 01 (Master system)
BTN 2 (STA Number) = 1**
BTN 3 (Net CO Gr) = 01
BTN 4 (CPN) =
8/19