Re: [hylafax-users] Page clipping

[Steve Underwood <steveu@xxxxxxxxxxx>]

Steve Underwood wrote:
> Hi,
>
> I have a TIFF file containing some A4 FAX test pages in fine 
> resolution, and I have a HylaFAX installation with the tag line turned 
> off. If I send the file with
>
> sendfax -n -m -d 9001 itutests.tif
>
> the result is, as I expect, bit for bit what I send. If I leave out 
> the "-m" I expect to receive the original file translated to standard 
> resolution, and receive half as many rows. However, the resulting 
> pages actually have about 1cm cropped from the top.
>
> Regards,
> Steve
After more testing I found something else odd. I sent the above test 
file many times in fine resolution mode. Sometimes I enabled ECM, and 
sometimes I disabled it. With ECM enabled everything worked OK on every 
try. With ECM disabled, on most occasions the resulting file was a 
perfect match for the original file. However, on two occasions every 
page arrived with the last row missing. Apart from that row, the source 
and destination images matched. The actual call path is

HylaFAX -> external serially connected modem -> (audio) -> VoIP gateway 
-> (T.38) -> Callweaver

I have the packet log from Callweaver, and the image data is genuinely 1 
row short. The question I can't answer right now is whether HylaFAX send 
the row, and the gateway stripped it, or whether HylaFAX missed it. Has 
anyone any experience of HylaFAX doing something like this?

Regards,
Steve


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