Steve,<br><br>Thank you very very much :)<br>I'll inform you of the result.<br><br>Best,<br> Afshin<br><br><div class="gmail_quote">On Wed, Jul 18, 2012 at 5:31 PM, Steve Underwood <span dir="ltr"><<a href="mailto:steveu@coppice.org" target="_blank">steveu@coppice.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On 07/18/2012 07:48 PM, afshin afzali wrote:<br>
> Hi Steve,<br>
><br>
> I don't think that my problem relates straightly to the time that a<br>
> fax takes to be received. In some cases I could get better result to<br>
> decrease fax speed (normally causes longer time). Let me tell you my<br>
> today case. There is a tabular document that I could receive from a<br>
> Panasonic fax machine and the same time unable to receive that from a<br>
> Canon machine. Although I'm receiving other (simpler than) documents<br>
> from the Canon one !<br>
</div>A huge number of Canon machines have a broken V.29 modem, which produces<br>
such a poor signal you are lucky if other machines can decode it. The<br>
only real difference a complex image makes is the amount of data. This<br>
has only two effects:<br>
- Obviously it takes longer.<br>
- In ECM mode, if the image exceeds 64k it will be sent in 64k<br>
blocks, with error correction between each block.<br>
If your Cisco is running software more than a couple of years old, its<br>
T.38 engine may be horribly broken. It seems that had so much trouble<br>
with it, they tossed it out and put a complete replacement in there. The<br>
new one usually works well.<br>
<div class="im HOEnZb">><br>
> I've tested various configurations on my 5350 device of modifying fax<br>
> rate, ls_redundancy and hs_redundancy but could not managed to fix this.<br>
><br>
> Afshin<br>
><br>
> On Wed, Jul 18, 2012 at 4:00 PM, Steve Underwood <<a href="mailto:steveu@coppice.org">steveu@coppice.org</a><br>
</div><div class="HOEnZb"><div class="h5">> <mailto:<a href="mailto:steveu@coppice.org">steveu@coppice.org</a>>> wrote:<br>
><br>
> On 07/18/2012 06:54 PM, afshin afzali wrote:<br>
> > Hi,<br>
> ><br>
> > There are some inbound fax sessions which I got error code 48<br>
> (and in<br>
> > some cases 49).<br>
> ><br>
> > FreeSWITCH Version 1.0.head (git-54ddef0 2011-12-06 21-53-45 -0600)<br>
> > AS5350XM Voice / Fax ( T.38 ) Gateway<br>
> ><br>
> > I've noticed that this error appears in cases which there are<br>
> complex<br>
> > documents (graphics or gray areas).<br>
> > appreciate all comments !<br>
> If you have graphics, the pages generally take a lot longer to<br>
> send. It<br>
> is not uncommon for T.38 gateways to have stupidly short timeouts,<br>
> which<br>
> will cause a call to drop after a page has been in progress for<br>
> just one<br>
> minute, or one and a half minutes. Could that be your problem?<br>
><br>
> Steve<br>
><br>
<br>
Steve<br>
<br>
<br>
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