[Freeswitch-users] [OL]Re: best way to receive FAXs

[François Delawarde]

My providers are mainly based in Spain so probably the names won't tell
you anything. I usually have -almost- perfect T38 results against Cisco
and Huawei hardware (provider gateway), and avoiding providers with
SONUS, NEC and ex-NORTEL products (CS2K). The most important would
probably have a quality Internet connection, if using lower speed ADSL
you should probably not share the limited bandwidth/upload with other
uses unless you know how to properly configure traffic shaping (we use
linux routers + HFSC and it works very well!). Some people just use
low-cost hosting such as OVH and online.net with very good results as
well.

Regards,
-- 
François

On Fri, 2014-07-11 at 16:30 +0000, bruce at sqls.net wrote:
>  
> Thanks for the information.  Would you be willing to share more
> information? Like the SIP providers you're using, type of internet
> connection, hardware, etc?  I would understand if you can't share
> everything.  But seeing that you seem to be having excellent success I
> would be very interested to know your setup in more detail - might
> give me some ideas on things to implement or improve.
>  
> I do like the combo of FreeSWITCH/SpanDSP  + Scripts.  I've really
> liked the lua scripting integration that lets me add console commands
> and stats info right into the fs_cli tool.  So, very encouraging news.
>  
>  
>  
> ------ Original Message ------
> From: "François Delawarde" <fdelawarde at wirelessmundi.com>
> To: freeswitch-users at lists.freeswitch.org
> Sent: 7/11/2014 10:53:00 AM
> Subject: Re: [Freeswitch-users] [OL]Re: best way to receive FAXs
>  
> > After extensive testing using decent SIP providers (with or without
> > T38), we have much better success with spandsp than hylafax. We even
> > have a better success rate compared to most combinations of ATA +
> > physical fax machine we tested!!
> > 
> > No tweaks needed, and using default values (use-ecm=true,
> > disable-v17=false).
> > 
> > Feature-wise it's not really comparable to a Hylafax solution, but
> > with a few scripts to manage queues and such, you can build a very
> > nice solution able to handle a huge fax volume!
> > 
> > Regards,
> > -- 
> > François Delawarde <fdelawarde at wirelessmundi.com>
> > Wireless Mundi S.L.
> > 
> > 
> > On Fri, 2014-07-11 at 15:13 +0000, bruce at sqls.net wrote: 
> > 
> > >   
> > > Great, thanks for the idea! I'll definitely give this a try as
> > > well. 
> > >   
> > > Also, great looking project :) I'll take a look at it as well.
> > > I've been wanting to learn more about golang too. I've used
> > > Hylafax in the past but I haven't used it lately - I probably
> > > should take another look at that as well. 
> > >   
> > >   
> > >   
> > > ------ Original Message ------ 
> > > From: "Markus Lindenberg" <markus.lindenberg at gmail.com> 
> > > To: "FreeSWITCH Users Help"
> > > <freeswitch-users at lists.freeswitch.org> 
> > > Sent: 7/11/2014 8:33:00 AM 
> > > Subject: Re: [Freeswitch-users] [OL]Re: best way to receive FAXs 
> > >   
> > > 
> > > > 
> > > > On Fri, Jul 11, 2014 at 3:11 PM, <bruce at sqls.net> wrote:
> > > > 
> > > >         For received faxes I get a lot more failures then I
> > > >         would like however, close to 15% 
> > > > 
> > > > 
> > > > I had some success with disabling T.38 for received calls. If i
> > > > see that negotiation failed multiple times or the fax aborts
> > > > with errors during page transmission, I save the callerid and
> > > > disable T.38 when the caller retries. Most cases that were not
> > > > successful with T.38 worked fine with soft modem.
> > > > See https://github.com/gonicus/gofaxip#fallback-from-t38-to-spandsp-softmodem for details.  
> > > > 
> > > > 
> > > 
> > > _________________________________________________________________________
> > > Professional FreeSWITCH Consulting Services:
> > > consulting at freeswitch.org
> > > http://www.freeswitchsolutions.com
> > > 
> > > 
> > > 
> > > 
> > > Official FreeSWITCH Sites
> > > http://www.freeswitch.org
> > > http://wiki.freeswitch.org
> > > http://www.cluecon.com
> > > 
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> 
> _________________________________________________________________________
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> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
> 
> 
> 
> 
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> 
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