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How does it send a fax without an answer at the other end of the line.

Donald Adams Dec 06, 2012 07:25PM EST

Delphi 7
Active X

I was testing to see what happens with a busy signal, I was surprised by the test. I took the receiver off the hook of the fax machine. I then sent the fax machine a fax. Instead of it failing, FaxMan tells me it sent the fax. It did not send the fax. The fax machine did not process the fax.

Any idea why it thought it did?

5 Data Techniques Responses and 6 Community Responses

Up 3 Rated Down
Donald Adams  Data Techniques Employee Dec 06, 2012 07:28PM EST

Here is the status log for the call.

Device = 0. Status: FAXST_INIT - The faxmodem is being initialized with the Init string
Device = 0. Status: FAXST_SEND_INIT - initializing a send operation
Device = 0. Status: FAXST_SEND_DIALING - Dialing the destination fax
Device = 0. Status: FAXST_SEND_WAIT_FCON - Done dialing, waiting for answer
Device = 0. Status: FAXST_SEND_FCON - Connected to remote fax
Device = 0. Status: FAXST_SEND_FCSI - Received destination’s identification string
Device = 0. Status: FAXST_SEND_FDCS - We have successfully negotiated faxing parameters
Device = 0. Status: FAXST_SENDING - Sending fax data.
Device = 0. Status: FAXST_SENDING - Sending fax data.
Device = 0. Status: FAXST_SENDING - Sending fax data.
Device = 0. Status: FAXST_SENDING - Sending fax data.
Device = 0. Status: FAXST_SENDING - Sending fax data.
Device = 0. Status: FAXST_SENDING - Sending fax data.
Device = 0. Status: FAXST_SENDING - Sending fax data.
Device = 0. Status: FAXST_SENDING - Sending fax data.
Device = 0. Status: FAXST_SENDING - Sending fax data.
Device = 0. Status: FAXST_SENDING - Sending fax data.
Device = 0. Status: FAXST_SENDING - Sending fax data.
Device = 0. Status: FAXST_SENDING - Sending fax data.
Device = 0. Status: FAXST_PAGE_END - Reached end of page
Device = 0. Status: FAXST_COMPLETE - The fax is completed.
Device = 0. Status: FAXST_PORTSHUT - The faxmodem port is closed.

Up -2 Rated Down
Donald Adams  Data Techniques Employee Dec 06, 2012 07:50PM EST

Wrong status log before. It is a 2 page tiff

Device = 0. Status: The faxmodem is being initialized with the Init string
Device = 0. Status: Initializing a send operation
Device = 0. Status: Dialing the destination fax
Device = 0. Status: Done dialing, waiting for answer
Device = 0. Status: Connected to remote fax
Device = 0. Status: We have successfully negotiated faxing parameters
Device = 0. Status: Sending fax data. Completed - 0%
Device = 0. Status: Sending fax data. Completed - 0%
Device = 0. Status: Sending fax data. Completed - 7%
Device = 0. Status: Sending fax data. Completed - 13%
Device = 0. Status: Sending fax data. Completed - 19%
Device = 0. Status: Sending fax data. Completed - 25%
Device = 0. Status: Sending fax data. Completed - 32%
Device = 0. Status: Sending fax data. Completed - 38%
Device = 0. Status: Sending fax data. Completed - 44%
Device = 0. Status: Sending fax data. Completed - 50%
Device = 0. Status: Sending fax data. Completed - 56%
Device = 0. Status: Sending fax data. Completed - 62%
Device = 0. Status: Sending fax data. Completed - 69%
Device = 0. Status: Sending fax data. Completed - 75%
Device = 0. Status: Sending fax data. Completed - 81%
Device = 0. Status: Sending fax data. Completed - 87%
Device = 0. Status: Sending fax data. Completed - 94%
Device = 0. Status: Sending fax data. Completed - 100%
Device = 0. Status: Reached end of page
Device = 0. Status: Sending fax data. Completed - 100%
Device = 0. Status: Sending fax data. Completed - 0%
Device = 0. Status: Sending fax data. Completed - 7%
Device = 0. Status: Sending fax data. Completed - 13%
Device = 0. Status: Sending fax data. Completed - 18%
Device = 0. Status: Sending fax data. Completed - 23%
Device = 0. Status: Sending fax data. Completed - 29%
Device = 0. Status: Sending fax data. Completed - 34%
Device = 0. Status: Sending fax data. Completed - 40%
Device = 0. Status: Sending fax data. Completed - 45%
Device = 0. Status: Sending fax data. Completed - 51%
Device = 0. Status: Sending fax data. Completed - 56%
Device = 0. Status: Sending fax data. Completed - 61%
Device = 0. Status: Sending fax data. Completed - 66%
Device = 0. Status: Sending fax data. Completed - 75%
Device = 0. Status: Sending fax data. Completed - 80%
Device = 0. Status: Sending fax data. Completed - 86%
Device = 0. Status: Sending fax data. Completed - 91%
Device = 0. Status: Sending fax data. Completed - 97%
Device = 0. Status: Sending fax data. Completed - 100%
Device = 0. Status: Reached end of page
Device = 0. Status: The fax is completed.
Device = 0. Status: The faxmodem port is closed.

Device #:0
Connect Time = 1:39

Up 3 Rated Down
DTI Support  Data Techniques Employee Dec 07, 2012 08:47AM EST

HI,

If FaxMan went thru those statuses then indeed it DID sent a fax, the fax protocol required responses from the called device so it would not have processed if indeed it got a BUSY signal.

John
Data Techniques Support

Up -2 Rated Down
Donald Adams  Data Techniques Employee Dec 07, 2012 11:03AM EST

Well then there is something wrong. I am using a LSI USB 2 Soft modem. Here is how I tested. I wanted to know how the program would respond to a busy signal...

1. I unplugged the fax machine. Overkill.
2. Called the line my fax machine is on from my cell phone, answered it from an extension. Set the receiver on the desk. Set my cell phone down on my desk with speaker on. I can hear that I still have a connection.
3. Used the VB6 sample program to call my fax number and got the same reaction I got with my program. It tells me it answers and it tells me it is sending each page.

I do not know how to design a test that is any more conclusive than this. It acts the same with the VB6 sample program as it does with mine.

Up 2 Rated Down
DTI Support  Data Techniques Employee Dec 07, 2012 11:08AM EST

Hi Donald,

Can you please send me the Port*.log file for today from the system32 directory. That will shed some light on what its connecting to.

Thanks,
Sean

Up 5 Rated Down
Donald Adams  Data Techniques Employee Dec 07, 2012 11:20AM EST

How do I send it to you? The Answer box tells me we have a 5k limit.

What email address should I send it to.
What subject would you like on it?

Up 5 Rated Down
DTI Support  Data Techniques Employee Dec 07, 2012 11:21AM EST

Hi Donald,

Pls email to us at support@data-tech.com.

Thx,
Sean

Up 1 Rated Down
Donald Adams  Data Techniques Employee Dec 07, 2012 11:24AM EST

On its way...

Up -2 Rated Down
DTI Support  Data Techniques Employee Dec 07, 2012 11:25AM EST

Thanks, I'll have a look at it asp and we can solve this mystery, its definitely calling somehere....

Sean

Up 0 Rated Down
Donald Adams  Data Techniques Employee Dec 07, 2012 12:30PM EST

That line is actually going to an AT&T voicemail. How could it negotiate with a voicemail? I will get the voicemail off that line and retest. Thanks for pursuing it for me.

Up -5 Rated Down
DTI Support  Data Techniques Employee Dec 07, 2012 12:51PM EST

Hi Don,

Well the voicemail must have a fax feature because its receiving the fax. Again the fax protocol requires the receiver to negotiate with the send so we dont just send a fax in the 'blind'.

Thanks for your interest in our products and please let us know if you have any questions.

Sincerely,
Sean
Data Techniques Support

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