Equisys Technical Notes

Technical guidance, explanations and fixes for our products

HOWTO: Configure devices for V.34 fax support

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ZTN1331

ID: ZTN1331

This Zetafax technical note applies to:

  • Zetafax version 8.0.1.126 and later

Summary

Zetafax supports Class 2.1 V.34 faxing at speeds of up to 33600 bps with version 8.0.1.126 and later. This technical note applies to analog Class 2.1 modems. This technical note describes how to configure Zetafax for V.34 support.

Equisys has tested V.34 support with these modems:

  • MultiTech Systems MT5634ZBA-V92

The following similar modems should also work:

  • MultiTech Systems MT5634ZBA-V-V92
  • MultiTech Systems MT5634ZPX-PCI-U

Is it also possible to configure Zetafax to support other untested v.34 fax modems.

More information

If you have a previous version of Zetafax 8 you can download the update from the Zetafax software updates page.

http://www.equisys.com/support/software_updates_zf8.html

(If you are using V9 or later this update is included by default). After downloading it, install the update, referring to the readme.txt file for instructions; if you are using one of the modems listed above then no further configuration should be necessary.

If your modem is not supported you will need to install it as a standard modem using the Zetafax configuration program, then work through the following steps:

  1. Browse to Zfax\system\z-db (where 'Zfax' is the location of the Zetafax program files)
  2. Open setup.ini
  3. Locate the v.34 device paragraph [FCLASS-n] where n is the device number (as below)
[FCLASS-1]
Description: Zoom fax modem
Type: Zoom fax modem
ClassPriority: 1.0
BaudRate: 19200
CheckInit1:
CheckInit2:
ConnectTries: 1
DetectBusy: YES
DetectDial: YES
DialPrefix:
DialSuffix:
DialType: TONE
IgnoreCTS: YES
IgnoreDSR: YES
IgnorePageErrors: YES
MinSendRetryPages: 5
PhoneNum:
Port: COM1
RecdUser: Zetalink
ReceiveInit:
ReceiveOnly: NO
ReceiveSpeed: 33600
RestartInitialPages: 1
RestartSplitPages: 1
SendInit:
SendMsgTries: 2
Speaker: OFF
SpeakerVolume: MEDIUM
TransmitSpeed: 33600
Serviceclass: 2.1
  1. Change the following parameters:
    1. ReceiveSpeed: 33600
    2. TransmitSpeed: 33600
  1. Add the following parameters:

    ServiceClass: 2.1

The paragraph should now look like this.

[FCLASS-1]
Description: Zoom fax modem
Type: Zoom fax modem
ClassPriority: 1.0
BaudRate: 19200
CheckInit1:
CheckInit2:
ConnectTries: 1
DetectBusy: YES
DetectDial: YES
DialPrefix:
DialSuffix:
DialType: TONE
IgnoreCTS: YES
IgnoreDSR: YES
IgnorePageErrors: YES
MinSendRetryPages: 5
PhoneNum:
Port: COM1
RecdUser: Zetalink
ReceiveInit:
ReceiveOnly: NO
ReceiveSpeed: 33600
RestartInitialPages: 1
RestartSplitPages: 1
SendInit:
SendMsgTries: 2
Speaker: OFF
SpeakerVolume: MEDIUM
TransmitSpeed: 33600
ServiceClass: 2.1
  1. You will need to repeat this for each V.34 device.

Testing

Start the Zetafax Server. You should see one of the following messages appear for each device:

  "FCLASS-n: Configured for MultiTech Systems V.92 modem"

And for each device:

"FCLASS-n: Modem set to Class 2.1"

This message is required for V.34 support.

Send or receive a fax. You should see the following message displayed after the modem has connected and before the pages are sent or received:

"V.34 connection at 33600"

Note: This message will appear ONLY if the device you are communicating with is also V.34 fax capable.

Troubleshooting

If you have set up an unsupported device and it receives faxes that are corrupted, e.g. mostly black pages, you may need to add the following line to the device paragraph in setup.ini:

ReceiveReversed: YES

Notes

  • The Class 1.0 protocol is not supported at V.34 speeds. Please see the list in the summary for supported V.34 fax modems.
  • Modems may be labelled V.34 and this may apply to data only. Fax speeds may be supported only up to 14400. Also, Zetafax supports V.34 using the Class 2.1 protocol only.

References

                      ZTN1029 INFO: Fax devices supported by Zetafax

                      ZTN1000 PRB: Modem Troubleshooting guide for Zetafax

Last modified 02 November 2005 (LD/EB)

Date Published 21 Nov 2003 (SD/SV)

Keywords < V34 modem> < Multitech>

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