PBX to PBX VoIP network (H.323) - ITCOMM Service H.323.pdf · PBX to PBX VoIP network (H.323) When 2 or more PBXs are connected through IP network, it is possible to call extensions

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PBX to PBX VoIP network (H.323)

When 2 or more PBXs are connected through IP network,

it is possible to call extensions in other PBX using this network.

This document explains how to program for above.

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Dial

0/9-02-3333-4444

Sydney Office

Melbourne Office

VoIP (Voice over IP)

Ext 203

03-1234-5203

Ext 112

03-1234-5102

Ext 101

02-3333-4444

Public Telephone

Company (03)

Public Telephone

Company (02)

Request PBX user wants to call extensions in other PBXs through private network using Voice over IP in order to save charge of long distance call. VPN router has been already installed usually for PC data network.

Customer

02-8765-4321

Ext 401

02-3333-4411

ISDN

QSIG

VPN

Router

VPN

Router

Perth Office

Ext 124

08-7777-6644

Customer

03-4321-8765

VPN

Router

IP Network

Public Telephone

Company (08)

Ext 305

08-777-6655

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Solution Making a call using TIE line feature is solution. There are two dialing methods as follows.

When Ext 1011 in PBX-1 calls Ext 1012, dial 1012.

Recommended I/F is VoIP (H.323) or ISDN- QSIG. E1, T1 or E&M is also possible but no supplemental service except caller ID.

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Programming

for network without

PBX Office Code (7-xx)

Programming

Method

Flexible Numbering

to use TIE Call

Dialed No. to

IP Address

TIE to TIE

Transmission

Type 1 Extension Independent No

Type 2 Extension Group No

Type 3 Other PBX Extension Independent Yes

VoIP IP Network

ISDN

QSIG VoIP

TIE to TIE Transmission

5

TRG7

VoIP

Melbourne Office

ISDN

QSIG

Sydney Office

Ext 203 Ext 112 Ext 101

Public Telephone

Company (03)

Public Telephone

Company (02)

When dialed number is not found in extension, TIE table is applied to decide trunk group based on leading digits.

Ext 401

Perth Office

Ext 124

IP Network

Public Telephone

Company (08)

Concept of Programming : Type 1

PBX : 192.168.0.21

DSP : 192.168.0.22

TRG8 TRG7

VoIP

TRG7

VoIP

Ext 305

PBX : 192.168.0.31

DSP : 192.168.0.32

Ext 106

101, 106 Ext No. TIE Table DN2IP Table (Dialed Number to IP Address)

112, 124 1 TRG7 11 192.168.0.31 (PBX in Melbourne)

203 2 TRG7 12 192.168.0.81 (PBX in Perth)

305 3 TRG7 2 192.168.0.31 (PBX in Melbourne)

401 4 TRG8 3 192.168.0.81 (PBX in Perth)

TRG1

When trunk group for VoIP (H.323) is selected by TIE table, DN2IP table is applied to decide IP address of destination PBX.

PBX : 192.168.0.81

DSP : 192.168.0.82

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Programming -1

Select MPR Virtual Slot. Program -1, 2 and 3 activate VoIP H.323 features. Other trunk card such as PRI has to be installed before this programming, otherwise CO-1/2/3…are assigned to H.323 channels.

H.323 Activation Programming Example for All PBXs in Sydney, Melbourne and Perth

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Programming -2 H.323 Activation

Install “V-IPGW16” card (Virtual 16-ch H.323 IP Gateway card). Max.32-ch H.323 is supported using 2 cards.

Click “Activation Key” for next programming. Batch mode does not support “Activation Key” button.

Programming Example for All PBXs in Sydney, Melbourne and Perth

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Programming -3 H.323 Activation

Assign channels for H.323 IP-GW. Default is SIP trunk for all channels. VoIP DSP card has to be installed to PBX before this programming. VoIP DSP16 provides 4-ch IP trunk (for H.323 or SIP trunk). VoIP DSP64 provides 16-ch IP trunk (for H.323 or SIP trunk). Activation key file can increase them. Maximum capacity with activation key of DSP64 is bigger than DSP16.


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Programming -4

This programming is not required because default is enabled. Activation key is required. If dialed number is in “Numbering Plan for Extension” but it is NOT extension number in this PBX, TIE feature works.

Activation Key (Enhanced Feature) KX-NCS3910 for NCP500-1000 KX-NCS4910 for TDE100-200 KX-NCS4950 for TDE600

TIE Call if Not Ext No. Programming Example for All PBXs in Sydney, Melbourne and Perth

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Programming -5

This programming is not required usually because default is enough. If dialed number is in “Numbering Plan for Extension” but it is NOT extension number in this PBX, TIE feature works. Default of “Numbering Plan for Extension” is as follows. 1xx, 2xx, 3xx, 4xx, 5xx and 6xx for NCP500-1000 and TDE100-200 10xx to 19xx, 20xx to 29xx, 5xx and 6xx for TDE600


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Programming -6

Remove unused extension number. If dialed number is in “Numbering Plan for Extension” but it is NOT extension number in this PBX, TIE feature works.

Remove

TIE Call if Not Ext No. Programming Example for TDE in Sydney

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Programming -7A Programming Example for PBX in Melbourne and Perth

This programming is not required usually because default is enough. Any dial is routed to H.323 VoIP because default of H.323 VoIP is “Trunk Group 7”. Priority 2-8 is used when all channels of priority 1 is occupied.

TIE Call if Not Ext No.

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Programming -7B

Assign “Trunk Group 8”, if the other trunk such as ISDN-QSIG is “Trunk Group 8”.

TIE Call if Not Ext No. Programming Example for TDE in Sydney

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Programming -8

Default of VoIP IP-GW (H.323) is Trunk Group 7. Default of other trunk is Trunk Group 1. Assign TRG8 for lines to NCP for TDE in Sydney.


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Programming -9

Select “Shelf Property”. “Out of service” is required before this operation or after Programming-12.

DN2IP for H.323 Programming Example for All PBXs in Sydney, Melbourne and Perth

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Programming -10 DN2IP for H.323 Programming Example for All PBXs in Sydney, Melbourne and Perth

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Programming -11 DN2IP for H.323

Assign IP address that each PBX has. Call is routed to the IP address. PBX in Sydney does not need “GW IP address” for Sydney in VoIP DN2IP table actually because call is not routed from Sydney to Sydney (loop back) usually. But same programming for all PBXs is easy to program. It is possible to export this data from one PBX and import to other PBXs using PCMC.


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Programming -12

DN2IP Table (Dialed Number to IP Address)

101, 106 10 192.168.0.21 (PBX in Sydney)

112 11 192.168.0.31 (PBX in Melbourne)

124 12 192.168.0.81 (PBX in Perth)

203 2 192.168.0.31 (PBX in Melbourne)

305 3 192.168.0.81 (PBX in Perth)

DN2IP for H.323 Programming Example for All PBXs in Sydney, Melbourne and Perth

It is possible to export this data from one PBX and import to other PBXs using PCMC. “Remaining Number” allows call without timeout. Ext 305 can be called through VoIP after dialing 305 without timeout.

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Default is to receive any call to this PBX. Default is OK. For example, if “8” is not programmed, call to 8xx is rejected.

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Programming -14 DN2IP for H.323

Change status to “OUS (Out of Service)” and return to “INS (In Service)”. This is required to activate VoIP setting and activation key.


21

Type 1 is easy to understand specifications. Type 2 is easy to program usually. So type 2 is used for programming usually instead of type 1.

Programming

for network without


Programming

Method

Flexible Numbering

to use TIE Call

Dialed No. to

IP Address

TIE to TIE

Transmission




22

TRG7

VoIP

Melbourne Office

ISDN

QSIG

Sydney Office

Ext 106 Ext 112 Ext 101

Public Telephone

Company (03)

Public Telephone

Company (02)

Ext 401

Perth Office

Ext 124

IP Network

Public Telephone

Company (08)


PBX : 192.168.0.21

DSP : 192.168.0.22

TRG8 TRG7

VoIP

TRG7

VoIP

Ext 305

PBX : 192.168.0.31

DSP : 192.168.0.32

Ext 203

TRG1

Type 1 Type 2 : All PBXs are assigned as destination for any dials.

DN2IP Table (Dialed Number to IP Address) DN2IP Table (Dialed Number to IP Address)

101 192.168.0.21 (PBX in Sydney) 192.168.0.21 (PBX in Sydney)

203 192.168.0.21 (PBX in Sydney) 1 or 2 or 3 IP-GW Group 1 192.168.0.31 (PBX in Melbourne)

11 192.168.0.31 (PBX in Melbourne) 192.168.0.81 (PBX in Perth)

106 192.168.0.31 (PBX in Melbourne)

12 192.168.0.81 (PBX in Perth)

3 192.168.0.81 (PBX in Perth)

If Ext 124 of PBX in Perth dials 106. (1) Perth cannot find “106” in extension. (2) Perth asks to Sydney. “Do you have 106?” Reply from Sydney. “No.” (3) Perth asks to Melbourne “Do you have 106”? Reply from Melbourne. “Yes” => Ring starts.

DN2IP table has 100 entries.

PBX : 192.168.0.81

DSP : 192.168.0.82

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Programming -21 Programming Example for All PBXs in Sydney, Melbourne and Perth

Assign all PBXs in same group. Program -21, 22 and 23 are required instead of Program -11 and 12. Other programming is same as type 1.

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Programming -22

Destination is NOT one PBX (GW No.) but “GW Group”. Program -21, 22 and 23 are required instead of Program -11 and 12. Other programming is same as type 1.


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Programming -23

For 3 or more than 3 PBXs, this programming is required. Otherwise operator of 1st other PBX will ring for call to 2nd or later PBX.


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Programming

for network without


Programming

Method

Flexible Numbering

to use TIE Call

Dialed No. to

IP Address

TIE to TIE

Transmission




VoIP IP Network

ISDN

QSIG VoIP


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TRG7

VoIP

Melbourne Office

ISDN

QSIG

Sydney Office

Ext 203 Ext 112 Ext 101

Public Telephone

Company (03)

Public Telephone

Company (02)

Ext 401

Perth Office

Ext 124

IP Network

Public Telephone

Company (08)


PBX : 192.168.0.21

DSP : 192.168.0.22

TRG8 TRG7

VoIP

TRG7

VoIP

Ext 305

PBX : 192.168.0.31

DSP : 192.168.0.32

Ext 106

TRG1

TDE in Sydney TDE in Melbourne NCP in Perth

Ext No. Other PBX

Ext No.

Ext No. Other PBX

Ext No.

Ext No. Other PBX

Ext No.

10 10 10

11 11 11

12 12 12

2 2 2

3 3 3

4 4 4

Flexible Numbering “Other PBX Ext No.” is used for TIE call. TIE to TIE transmission is available using this type.

Dial 401

Dial 401

Dial 401

If received dial from other PBX is “Other PBX Ext No.”, TIE table and DN2IP table are applied, as well as dial from extension. Flexibility of extension number is low. TDE in Sydney can have extension 10x only for example.

PBX : 192.168.0.81

DSP : 192.168.0.82

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Programming -31 Programming Example for TDE in Sydney

This programming is required instead of Program -4, 5 and 6. Other programming is same as type 1.

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TRG7

VoIP

Melbourne Office

ISDN

QSIG

Sydney Office

Ext 203 Ext 112 Ext 101 Ext 401

IP Network TRG8 TRG7

VoIP

Ext 106

Dial 401 Dial 101 10 or 4 to

Sydney

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TIE to TIE Transmission : Yes

Programming

for network with


VoIP IP Network

ISDN

QSIG VoIP


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Sydney Office

7-21 7-22

Dial 101

Dial 22-101

TRG7

VoIP

Melbourne Office

7-30

ISDN

QSIG

Ext 102 Ext 101 Ext 101

Public Telephone

Company (03)

Public Telephone

Company (02)

Ext 101

Perth Office

7-81

Ext 101

IP Network

Public Telephone

Company (08)

Concept of Programming : PBX Code

TRG8 TRG7

VoIP

TRG7

VoIP

Ext 102

Ext 102

TRG1

Dial from Ext Dial from other PBX TIE Table DN2IP Table (Dialed Number to IP Address)

7-30-101 30-101 30 TRG7 30 192.168.0.31 (PBX in Melbourne)

7-81-101 81-101 81 TRG7 81 192.168.0.81 (PBX in Perth)

7-21-101 21-101 21 TRG8

101 22-101

PBX : 192.168.0.81

DSP : 192.168.0.82

PBX : 192.168.0.21

DSP : 192.168.0.22 PBX : 192.168.0.31

DSP : 192.168.0.32

PBX office code is programmed for TIE table and DN2IP table.

Dial 21-101

Ext 101 in PBX in Sydney is called, because dial “22” is “My PBX code”.

My PBX Code = 22

Dial 7-21-101

TIE table and DN2IP table are applied to dial from other PBX, as well as dial from extension after removing “7”.

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Programming -41

“7” is programmed by default for TIE line access. Program -4, 5 and 6 of type 1 are not required.


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Programming -42A

Program Own PBX Code to “22”. PBX office code is programmed instead of Program -7 of type 1. 7-21 to TRG8 Other 7-xx to TRG7

Programming Example for TDE in Sydney

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Programming -42B

Program Own PBX Code to “30” for Melbourne and “81” for Perth. Program Any 7-xx to TRG7. (This is programmed by default.)

Programming Example for PBX in Melbourne and Perth

35

Programming -43

PBX office code is programmed instead of Program -7 of type 1.


Call between NCP in Sydney (7-21) and PBX in Melbourne or Perth is possible through TDE in Sydney (7-22), if PBX office code is used.

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Remark

37

Remark – A Usually “GW setting” and “DN2IP” are common for all PBXs. It is convenient to export data from one PBX and import to other PBXs.

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Remark - B Do not forget programming of “Default Gateway” for actual installation. Setting is same as PC installed in same network. This is not required for demo in one LAN hub. Office

LAN

IP Address of PC : 10.64.213.201 Subnet Mask : 255.255.254.0 Default Gateway : 10.64.212.1

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Sydney Office

10x or 4xx

Perth Office

3xx or 12x

Melbourne Office

2xx or 11x

Dial 102

Remark - C

*1) This can be changed to “Yes” by system reserved bit 02-5. This provide following solution for example.

Programming

Method

Flexible Numbering

to use TIE Call

Dialed No. to

IP Address

TIE to TIE

Transmission

Type 1 Extension Independent No *1



Dial 101

Dial 101

TRG7

VoIP ISDN

QSIG

IP Network TRG8 TRG7

VoIP

TRG7

VoIP

Dial 102

Ext 203 Ext 112 Ext 101

Ext 124 Ext 305

Ext 106 Ext 401 Ext 102

1 TRG8 10 TRG8

2 TRG8 11 TRG7

3 TRG8 12 TRG7

4 TRG8 2 TRG7

3 TRG7

4 TRG8

NCP TIE Table TDE TIE Table

Dial 101

Only TDE uses

this bit.

It is also possible for NCP in Sydney to call other offices through TDE in Sydney. TIE table and DN2IP table of TDE in Sydney are applied to dial from other PBX, as well as dial from extension.

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Remark – D

Dial 104

Ext 101 Ext 106 Ext 401 Ext 102

*1) This can be changed to “Yes” by system reserved bit 02-5. But if both TDE and NCP use this bit for following example, all channels between PBXs are occupied temporally (and released automatically) for incorrect dial such as “104”.

Programming

Method

Flexible Numbering

to use TIE Call

Dialed No. to

IP Address

TIE to TIE

Transmission

Type 1 Extension Independent No *1

Type 2 Extension Group No *2


Both TDE and NCP think

“I do not have ext 104, I have to

make a TIE call.”

*2) System reserved bit 02-5 should not be used for type 2. If this is enabled, making a TIE call starts instead of replying “I do not have the ext”. See “Concept of Programming : Type 2”.

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Remark – E

*1) One activation key is required for all features. (Not one key for each one feature) *2) System reserved bit is required as previous page. *3) Destination of VM has to use type 3. Other extensions can be called using type 1 or 2.

Programming

Method

Flexible Numbering

to use TIE Call

Dialed No. to

IP Address

Type 1 Extension Independent

Type 2 Extension Group

Type 3 Other PBX Extension Independent

Features Without PBX Office Code With PBX

Office Code Type 1 Type 2 Type 3

Calling extension in other PBX Yes *1 Yes *1 Yes Yes

TIE to TIE transmission Yes *1 *2

No Yes Yes

Network ICD Group Yes *1 Yes *1 Yes *1 Yes *1

Network DSS key No No Yes *1 Yes *1

Centralized VM Yes *1 *3

Yes *1 *3

Yes *1 Yes *1

Version 4 enhanced network features Yes *1 Yes *1 Yes *1 Yes *1

Activation Key (Enhanced Feature) KX-NCS3910 for NCP500-1000 KX-NCS4910 for TDE100-200 KX-NCS4950 for TDE600

42

End of Document

PBX to PBX VoIP network (H.323) - ITCOMM Service H.323.pdf · PBX to PBX VoIP network (H.323) When 2 or more PBXs are connected through IP network, it is possible to call extensions

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