[Asterisk-Users] fax detection: false positive

[Patrick Cantwell]

Tilghman,
    What happens if someone needs the new signalling routines *and* working
fax detection?  I'm personally not in this boat, but it's only a matter of
time before someone is.
Is this a temporary fix?  If not, this should be documented somewhere as it
seems to be a problem for enough people. (Olle? :)
Thanks,
Pat

----- Original Message ----- 
From: "Tilghman Lesher" <tilghman at mail.jeffandtilghman.com>
To: <asterisk-users at lists.digium.com>
Sent: Friday, December 26, 2003 2:50 PM
Subject: Re: [Asterisk-Users] fax detection: false positive


> On Friday 26 December 2003 13:42, john lawler wrote:
> > Hi guys,
> >
> > I just moved from Asterisk release 0.5.0 to CVS 2003-12-22, and
> > after overcoming a few changes in my configuration, I encountered
> > one problem that I couldn't shake that was working fine in 0.5.0.
> >
> > It's the fax detection.  I just have a simple extension setup like
> > this:
> >
> > exten => fax,1,Dial(Zap/4,30,tr)
> > exten => fax,2,Hangup
> >
> > in my main incoming context.  This used to work fine, I don't think
> > I ever had a false positive or negative, but now just about every
> > call (possibly every call) that comes in when I've got that
> > extension defined rolls to my fax machine on Zap/4 immediately.
>
> Uncomment OLD_DSP_ROUTINES near the top of dsp.c, recompile,
> install, and restart.
>
> The newer DSP routines are used to fix a type of signalling on E&M
> lines.
>
> -Tilghman
>
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