Re: [hylafax-users] Disable the "resume" retransmit of faxes

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

Jonny Berthiaume wrote:

> I sent a fax with a total of 5 pages. While transmitting, the 
> transmission has been interrupted after the third page, just before 
> receiving the confirmation from the client for the good reception of 
> the third page. HylaFAX then requeue the fax as it normally would, but 
> the "requeued" fax is now only 3 pages. This result is rather ingenius 
> if I transmitted only UNIMPORTANT document.


HylaFAX isn't alone in this behavior.  The only other behavior that I 
know of would be to error-out the fax call entirely, requiring the user 
to resubmit.  I don't know of any fax machine that will go back and 
independently retransmit pages that were already acknowledged as 
receipt-confirmed by the receiver.

> The problem is the faxed document must have all the pages in the same 
> order to avoid errors by missing pages. Just think about a medical 
> report where you didn't notice the first two pages transmitted 10 
> minutes ago! Other faxes would have been printed on top of those and 
> they might be forgotten. This situation might lead, in extreme cases, 
> to death.


Extreme, indeed.  The tagline and/or coverpage should (well, can) 
indicate the page number and the pages in the fax document.  The 
recipient should know when they're missing pages on either side of the 
transmission.  I've never tested continuation coverpages, myself, but 
they would be an additional aid to this kind of situation.

Entertaining the extreme perspective, death could occur due to pages 
missing at the end of a fax, too, I suppose.  And call interruption is 
sometimes nothing that can be avoided on our end.

> I need to disable this behaviour. I need to always transmit the FULL 
> document no matter how many pages has been successfully transmitted 
> before. I have made my researches, I found nothing in the man of 
> hylafax-config, hylafax-server, faxq, sendfax, neither on forums or 
> mailing list archives. How do I disable this behaviour?


Submit your jobs with only one attempt permitted.  Upon failure the user 
will be required to resubmit.

That said, I suspect that you could cover all possibility of confusion 
by creating informative coverpages, continuation coverpages, and 
taglines that make it very clear about how many pages there are in the 
job and what page number it is that the receiver is looking at.

Lee.


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