Re: [hylafax-users] Strange: gaps in output at receiver

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

Walter Hop wrote:
> What consistently seems to happen (for this recipient) is that several 
> gaps from the page are left out. There are no error messages as far as 
> I can see.
>
> A message as the recipient received it: 
> http://u.lfms.nl/fax_missing_lines.gif
>
> You can see what is left out at the original message: 
> http://u.lfms.nl/fax_original.gif
> As you can see, there are three vertical regions which are not printed 
> out at the remote site at all...
>
> The session transcript is below this message. 

Your session log indicates that ECM was not used, and the examples that 
you are showing are typical of the kind of thing that can happen when in 
a non-ECM session there are regular periods of corrupted audio.

If this happens consistently with faxes that you send (if you are using 
ECM you can notice this in the session log by noticing the number and 
sequence of image data frames that require retransmission) to different 
destinations then the problem is most likely on your end... your phone 
lines are bad and probably should be checked by the telco.  If it only 
is dealing with this receiver then it is probably on their end ... and I 
would advise that you advise them to have their lines checked and to get 
a fax machine that supports ECM (error correction).

Thanks,

Lee.


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