Equisys technical notes

Technical guidance, explanations and fixes for our products

PRB: Modem trace log is virtually empty

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ZTN1328

ID: ZTN1328

This Zetafax technical note applies to:

  • Zetafax 5.5 and later

Symptom

When enabling a modem trace log to troubleshoot a problem (see ZTN1065-INFO: Enabling detailed logging within Zetafax), you may find that the resulting trace log only has a few lines, as in the example below:

03-09-23 14:33:23  FCLASS-1    - (I) - Configured for generic Class 1 / Class 2 modem

03-09-23 14:33:23  FCLASS-1    - (-) - Opening COM port

03-09-23 14:33:23  FCLASS-1    - (-) - SetupRS232() - baud = 19200, CTS timeout = 0 ms

03-09-23 14:33:23  FCLASS-1    - (-) - Poll - 'ATE0V0Q0S0=0& C1& D2M0L2', Reply - < none>

03-09-23 14:33:25  FCLASS-1    - (-) - Checking Fax status

03-09-23 14:33:25  FCLASS-1    - (-) - Poll - 'ATE0V0Q0S0=0& C1& D2M0L2', Reply - OK

03-09-23 14:33:25  FCLASS-1    - (-) - Start SelectServiceClass(): 1064320405.628

03-09-23 14:33:25  FCLASS-1    - (-) - Poll - 'AT+FCLASS=?', Reply - " 0,1,2,8"

03-09-23 14:33:26  FCLASS-1    - (-) - Failed to set to ServiceClass 1.0 (choice 1)

03-09-23 14:33:26  FCLASS-1    - (-) - Poll - 'AT+FCLASS=1', Reply - OK

03-09-23 14:33:26  FCLASS-1    - (I) - Modem set to Class 1

03-09-23 14:33:26  FCLASS-1    - (-) - End SelectServiceClass(): 1064320406.550

03-09-23 14:33:26  FCLASS-1    - (-) - Poll - 'AT+FCLASS=0', Reply - OK

03-09-23 14:33:26  FCLASS-1    - (-) - Closing COM port

Cause

This behaviour occurs if the modem is not configured to receive. In this case, the modem port is closed as soon as initialisation is completed, and logging does not occur beyond that point.

Resolution

There are two ways to work around this behaviour:

- Set a default recipient to receive faxes in Zetafax Configuration, Devices

OR

- Add the following line to the [FCLASS-x] section in SETUP.INI for each modem port:

KeepPortOpen: YES

Either of these settings will force the modem port to stay open, which will allow logging to continue.

Status

Last reviewed: 11 November 2005 (GC/EB)

Date Published: 11 November 2005 (EB/SV)

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