PBX to PBX VoIP network (H.323)

Transcription

1 1 PBX to PBX 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.

2 2 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. Public Telephone Company (02) Public Telephone Company (03) Public Telephone Company (08) Customer Customer Sydney Office Melbourne Office (Voice over IP) ISDN QSIG VPN Router IP Network VPN Router Dial 0/ Ext Ext Ext Ext Perth Office VPN Router Ext Ext

3 3 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 Recommended I/F is (H.323) or ISDN- QSIG. E1, T1 or E&M is also possible but no supplemental service except caller ID.

4 4 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 TIE to TIE Transmission ISDN QSIG IP Network

5 5 Concept of Programming : Type 1 When dialed number is not found in extension, TIE table is applied to decide trunk group based on leading digits. When trunk group for (H.323) is selected by TIE table, DN2IP table is applied to decide IP address of destination PBX. Public Telephone Company (02) Public Telephone Company (03) Public Telephone Company (08) Sydney Office TRG1 PBX : DSP : Melbourne Office PBX : DSP : Perth Office PBX : DSP : TRG8 ISDN QSIG TRG7 IP Network TRG7 TRG7 Ext 401 Ext 101 Ext 106 Ext 112 Ext 203 Ext 124 Ext , 106 Ext No. TIE Table DN2IP Table (Dialed Number to IP Address) 112, TRG (PBX in Melbourne) TRG (PBX in Perth) TRG (PBX in Melbourne) TRG (PBX in Perth)

6 6 Programming -1 H.323 Activation for All PBXs in Sydney, Melbourne and Perth Select MPR Virtual Slot. Program -1, 2 and 3 activate 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.

7 H.323 Activation Programming -2 for All PBXs in Sydney, Melbourne and Perth 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. 7

8 8 H.323 Activation Programming -3 for All PBXs in Sydney, Melbourne and Perth Assign channels for H.323 IP-GW. Default is SIP trunk for all channels. DSP card has to be installed to PBX before this programming. DSP16 provides 4-ch IP trunk (for H.323 or SIP trunk). 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.

9 9 TIE Call if Not Ext No. Programming -4 for All PBXs in Sydney, Melbourne and Perth Activation Key (Enhanced Feature) KX-NCS3910 for NCP KX-NCS4910 for TDE KX-NCS4950 for TDE600 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.

10 10 TIE Call if Not Ext No. Programming -5 for All PBXs in Sydney, Melbourne and Perth 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 NCP and TDE xx to 19xx, 20xx to 29xx, 5xx and 6xx for TDE600

11 11 TIE Call if Not Ext No. Programming -6 for TDE in Sydney Remove 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.

12 12 TIE Call if Not Ext No. Programming -7A for PBX in Melbourne and Perth This programming is not required usually because default is enough. Any dial is routed to H.323 because default of H.323 is Trunk Group 7. Priority 2-8 is used when all channels of priority 1 is occupied.

13 13 TIE Call if Not Ext No. Programming -7B for TDE in Sydney Assign Trunk Group 8, if the other trunk such as ISDN-QSIG is Trunk Group 8.

14 14 TIE Call if Not Ext No. Programming -8 for All PBXs in Sydney, Melbourne and Perth Default of 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.

15 15 DN2IP for H.323 Programming -9 for All PBXs in Sydney, Melbourne and Perth Select Shelf Property. Out of service is required before this operation or after Programming-12.

16 16 DN2IP for H.323 Programming -10 for All PBXs in Sydney, Melbourne and Perth

17 17 DN2IP for H.323 Programming -11 for All PBXs in Sydney, Melbourne and Perth 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 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.

18 DN2IP for H.323 Programming -12 for All PBXs in Sydney, Melbourne and Perth DN2IP Table (Dialed Number to IP Address) 101, (PBX in Sydney) (PBX in Melbourne) (PBX in Perth) (PBX in Melbourne) (PBX in 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 after dialing 305 without timeout. 18

19 19 DN2IP for H.323 Programming -13 for All PBXs in Sydney, Melbourne and Perth Default is to receive any call to this PBX. Default is OK. For example, if 8 is not programmed, call to 8xx is rejected.

20 20 DN2IP for H.323 Programming -14 for All PBXs in Sydney, Melbourne and Perth Change status to OUS (Out of Service) and return to INS (In Service). This is required to activate setting and activation key.

21 21 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 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.

22 Concept of Programming : Type 2 22 Public Telephone Company (02) Public Telephone Company (03) Public Telephone Company (08) Sydney Office TRG1 PBX : DSP : Melbourne Office PBX : DSP : Perth Office PBX : DSP : TRG8 ISDN QSIG TRG7 IP Network TRG7 TRG7 Ext 401 Ext 101 Ext 203 Ext 112 Ext 106 Ext 124 Ext 305 Type 1 DN2IP Table (Dialed Number to IP Address) Type 2 : All PBXs are assigned as destination for any dials. DN2IP Table (Dialed Number to IP Address) (PBX in Sydney) (PBX in Sydney) (PBX in Sydney) 1 or 2 or 3 IP-GW Group (PBX in Melbourne) (PBX in Melbourne) (PBX in Perth) (PBX in Melbourne) (PBX in Perth) (PBX in Perth) DN2IP table has 100 entries. 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.

23 23 Programming -21 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.

24 24 Programming -22 for All PBXs in Sydney, Melbourne and Perth 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.

25 25 Programming -23 for All PBXs in Sydney, Melbourne and Perth 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.

26 26 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 TIE to TIE Transmission ISDN QSIG IP Network

27 27 Concept of Programming : Type 3 Flexible Numbering Other PBX Ext No. is used for TIE call. TIE to TIE transmission is available using this type. Public Telephone Company (02) Public Telephone Company (03) Public Telephone Company (08) Sydney Office Ext 401 TRG8 ISDN QSIG Ext 101 TRG1 PBX : DSP : Ext 106 Dial 401 TRG7 Dial 401 IP Network Melbourne Office PBX : DSP : TRG7 Dial 401 Ext 112 Ext 203 Perth Office PBX : DSP : TRG7 Ext 124 Ext 305 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. 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.

28 28 Programming -31 for TDE in Sydney This programming is required instead of Program -4, 5 and 6. Other programming is same as type 1.

29 29 DN2IP for H.323 Programming -32 for All PBXs in Sydney, Melbourne and Perth Sydney Office Melbourne Office TRG8 ISDN QSIG TRG7 IP Network Dial 101 TRG7 Dial or 4 to Sydney Ext 401 Ext 101 Ext 106 Ext 112 Ext 203

30 30 Programming for network with PBX Office Code (7-xx) TIE to TIE Transmission : Yes TIE to TIE Transmission ISDN QSIG IP Network

31 31 Concept of Programming : PBX Code PBX office code is programmed for TIE table and DN2IP table. Public Telephone Company (02) Public Telephone Company (03) Public Telephone Company (08) Sydney Office 7-21 TRG TRG8 ISDN QSIG Dial TRG7 Dial IP Network Melbourne Office 7-30 PBX : DSP : PBX : DSP : TRG7 Dial Perth Office 7-81 PBX : DSP : TRG7 Ext 101 Ext 101 Ext 102 Dial 101 Ext 101 Ext 102 Ext 101 Ext 102 TIE table and DN2IP table are applied to dial from other PBX, as well as dial from extension after removing 7. Dial from Ext Dial from other PBX TIE Table DN2IP Table (Dialed Number to IP Address) TRG (PBX in Melbourne) TRG (PBX in Perth) TRG My PBX Code = 22 Ext 101 in PBX in Sydney is called, because dial 22 is My PBX code.

32 32 Programming -41 for All PBXs in Sydney, Melbourne and Perth 7 is programmed by default for TIE line access. Program -4, 5 and 6 of type 1 are not required.

33 33 Programming -42A for TDE in Sydney Program Own PBX Code to 22. PBX office code is programmed instead of Program -7 of type to TRG8 Other 7-xx to TRG7

34 34 Programming -42B for PBX in Melbourne and Perth Program Own PBX Code to 30 for Melbourne and 81 for Perth. Program Any 7-xx to TRG7. (This is programmed by default.)

35 35 Programming -43 for All PBXs in Sydney, Melbourne and Perth 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.

36 Remark 36

37 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.

38 38 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 : Subnet Mask : Default Gateway :

39 39 Programming Method Remark - C Flexible Numbering to use TIE Call Dialed No. to IP Address *1) This can be changed to Yes by system reserved bit This provide following solution for example. TIE to TIE Transmission Type 1 Extension Independent No *1 Type 2 Extension Group No Type 3 Other PBX Extension Independent Yes Sydney Office 10x or 4xx Only TDE uses this bit. NCP TIE Table TDE TIE Table 1 TRG8 10 TRG8 2 TRG8 11 TRG7 3 TRG8 12 TRG7 4 TRG8 2 TRG7 3 TRG7 4 TRG8 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. Melbourne Office 2xx or 11x Perth Office 3xx or 12x TRG8 ISDN QSIG Dial 102 TRG7 Dial 101 IP Network TRG7 Dial 101 TRG7 Dial 102 Ext 102 Ext 401 Ext 101 Ext 106 Dial 101 Ext 112 Ext 203 Ext 124 Ext 305

40 40 Programming Method Remark D 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 Type 3 Other PBX Extension Independent Yes *1) This can be changed to Yes by system reserved bit 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. Ext 102 Ext 401 Ext 101 Ext 106 Dial 104 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.

41 41 Programming Method Remark E 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 Activation Key (Enhanced Feature) KX-NCS3910 for NCP KX-NCS4910 for TDE KX-NCS4950 for TDE600 Features Without PBX Office Code Type 1 Type 2 Type 3 With PBX Office Code 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 *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.

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