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Channel Allocation On E1

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Hi, I am using E1 line to make calls to TAPI VG on Win Server 2003 and an Eicon PRI (V2) Card. running ComISDN as the CAPI<>TAPI bridge/driver.

 

Calls are only answered on "Line2" of the PRI card. I wonder, is the Line1 reserved in some way?

 

I have looked the VG start-up log and get 30 channels listed as "Tapi" and then 30 channels listed as ISDN lines (via ComISDN), eg: (see file attached: vg-pri1.txt bit of start-up log):

 

110137.72   0 init  InitClear start
110137.80   0       -----------------------------------------
110137.81   0       VoiceGuide TAPI v5.2.5047
110137.81   0       -----------------------------------------
110138.09   0       ApiMode=[TAPI]
110138.13   0 tapi  device 82 is: ISDN Line 5 Channel 30
110138.16   0 tapi  device 81 is: ISDN Line 5 Channel 29
110138.16   0 tapi  device 80 is: ISDN Line 5 Channel 28
110138.17   0 tapi  device 79 is: ISDN Line 5 Channel 27
...
110138.21   0 tapi  device 61 is: ISDN Line 5 Channel 9
110138.21   0 tapi  device 60 is: ISDN Line 5 Channel 8
110138.21   0 tapi  device 59 is: ISDN Line 5 Channel 7
110138.22   0 tapi  device 58 is: ISDN Line 5 Channel 6
110138.22   0 tapi  device 57 is: ISDN Line 5 Channel 5
110138.22   0 tapi  device 56 is: ISDN Line 5 Channel 4
110138.22   0 tapi  device 55 is: ISDN Line 5 Channel 3
110138.22   0 tapi  device 54 is: ISDN Line 5 Channel 2
110138.23   0 tapi  device 53 is: ISDN Line 5 Channel 1
110138.23   0 tapi  device 52 is: ISDN Line 4 Channel 2
110138.23   0 tapi  device 51 is: ISDN Line 4 Channel 1
110138.23   0 tapi  device 50 is: ISDN Line 3 Channel 2
110138.24   0 tapi  device 49 is: ISDN Line 3 Channel 1
110138.24   0 tapi  device 48 is: ISDN Line 2 Channel 2
110138.24   0 tapi  device 47 is: ISDN Line 2 Channel 1
110138.24   0 tapi  device 46 is: ISDN Line 1 Channel 2
110138.25   0 tapi  device 45 is: ISDN Line 1 Channel 1
110138.25   0 tapi  device 44 is: H323 Line
110138.25   0 tapi  device 43 is: IPCONF LINE
110138.25   0 tapi  device 42 is: LPT1T
110138.25   0 tapi  device 41 is: WAN Miniport (L2TP)
110138.26   0 tapi  device 40 is: Eicon ISDN Channel
110138.26   0 tapi  device 39 is: Eicon ISDN Channel
110138.26   0 tapi  device 38 is: Eicon ISDN Channel
110138.26   0 tapi  device 37 is: Eicon ISDN Channel
110138.27   0 tapi  device 36 is: Eicon ISDN Channel
110138.27   0 tapi  device 35 is: Eicon ISDN Channel
110138.27   0 tapi  device 34 is: Eicon ISDN Channel
110138.27   0 tapi  device 33 is: Eicon ISDN Channel
110138.28   0 tapi  device 32 is: Eicon ISDN Channel
110138.28   0 tapi  device 31 is: Eicon ISDN Channel
110138.28   0 tapi  device 30 is: Eicon ISDN Channel
110138.28   0 tapi  device 29 is: Eicon ISDN Channel
110138.28   0 tapi  device 28 is: Eicon ISDN Channel
...
110138.33   0 tapi  device 9 is: Eicon ISDN Channel
110138.33   0 tapi  device 8 is: Eicon ISDN Channel
110138.33   0 tapi  device 7 is: Eicon ISDN Channel
110138.34   0 tapi  device 6 is: Eicon ISDN Channel
110138.34   0 tapi  device 5 is: Eicon ISDN Channel
110138.34   0 tapi  device 4 is: Eicon ISDN Channel
110138.34   0 tapi  device 3 is: Eicon ISDN Channel
110138.34   0 tapi  device 2 is: Eicon ISDN Channel
110138.35   0 tapi  device 1 is: RAS VPN Line 0
110138.35   0 tapi  device 0 is: RAS PPPoE Line0000
110138.36   0 init  vgmulti ver 5.2.5047

 

 

So, any idea why it only answers calls starting on channel 2? If I specify channel 1 as a selected TAPI line, it just gets ignored, so all calls to the card start being answered from channel 2 only. Could it be that channel 1 is reserved as a timing channel? If so, why only 30 channels listed in the VG TAPI device list? (the pri line is coming from a local PABX, not a live public circuit or exchange) and I only have (at the moment) an 8 line license, so I can't test more than 8 lines.

 

Any ideas? Thanks!

vg_pri1.txt

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If you see VoiceGuide answering calls on line 2 it would be because the calls have been presented to it on that line. You should look at the ComISDN driver to determine why it is presenting calls on that channel.

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Okay, thanks. I already asked ComISDN, they commented that they just use the CAPI channel controller assigned by the driver. So, if I am using Eicon CAPI driver, your comment suggests that the source of the problem is there.

 

I know that CAPI is not your strongpoint, but from what you know about TAPI, Please confirm its the TAPI hardware driver that matches TAPI line/device/channels to the hardware, and that VG just uses whatever TAPI lines it is given when it asks the OS/Hardware to list the available TAPI devices. If this is the case (as it surely must be) then it looks like the "TSP" or the hardware is wrong!

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Please confirm its the TAPI hardware driver that matches TAPI line/device/channels to the hardware, and that VG just uses whatever TAPI lines it is given when it asks the OS/Hardware to list the available TAPI devices.
That's correct.

 

Why have you selected the Eicon brand card instead of a Dialogic D/300 card?

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Okay - Thanks.

 

Eicon is Dialogic !! ;-) But really: Originally I wanted ISDN BRI solutions and to provide PABX interfaces over BRI - S0 bus.

 

Now I have Eicon PRI connecting/bridging over to Eicon BRI - its really neat, apart from odd teething niggles, like the one above.

 

The Eicon Card drivers are lot more compact and easy to work with, the setup/install is trouble-free, less complex and a lot more elegant. No tone/disconnect issues, fast setup/disconnect time and cards at a reasonable price. Support you can actually talk to, need I go on?

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