[Asterisk-Users] Autodetecting faxes

[Howard Lowndes]

On Tue, 2005-02-08 at 09:49, Brian Dingman wrote:
> I am having the same problems. No matter what I try, * won't detect
> faxes. I have faxdetect=both in zaptel.conf and my extensions.conf
> looks like this:
> 
> [fromPSTN]
> exten => s,1,Answer
> exten => s,2,DigitTimeout(2)
> exten => s,3,ResponseTimeout(10)
> exten => s,4,Wait(3)
> exten => s,5,Background(custom/ivr-greeting)
> 
> exten => i,1,Wait(1)
> exten => i,2,Background(pbx-invalid)   ; "That's not valid, try again"
> exten => i,3,Goto(s,5)
> 
> exten => t,1,Background(goodbye)
> exten => t,2,Hangup
> 
> exten => fax,1,Goto(fax,s,1)
> 

You do have an exten called "fax"...?

> 
> On Sun, 06 Feb 2005 20:42:07 +0000, Adrian Chapman <adrian at trivas.co.uk> wrote:
> > What we found was that the fax/voice decision was being made before the
> > intermittent "beep------beep------beep" fax tone was being generated, so
> > it wasn't being detected.
> > 
> > Changing the order of things in extensions.conf around a smidge got it
> > all working nicely :-
> > 
> > [inbound-from-pstn]
> > include => default
> > exten => s,1,Answer
> > exten => s,2,Wait,1
> > exten => s,3,Playback(thank-you-for-calling-please-wait-a-moment)
> > exten => fax,1,Macro(faxreceive)
> > exten => s,4,<Do the normal phone call gubbins>
> > 
> > The wait allows the start of the Playback to be heard by the caller -
> > without it, we were finding the first word clipped. That second plus the
> > duration of the "Thank you for calling" message gives enough time for
> > the roughly 2.5sec duration between fax beeps to repeat, no matter when
> > it last fell compared to the answer.
> > 
> > We've not checked more into the three rings before answer, but there's
> > been discussion (here? elsewhere?) that it's down to the wait for caller
> > ID. Try turning that off. TBH, I *like* the three rings - as a caller,
> > it psychologically gives you time to get your head in gear before the
> > call's answered.
> > 
> > Besides - If you're ringing from a mobile, it also gives you time to
> > physically put the phone to your ear...
> > 
> > --
> > Adrian Chapman
> > Director
> > Trivas Ltd
> > Business on the Move
> > Mobility - Messaging - Infrastructure - Security - Remote Access
> > 07796 690210 - 01582 626552
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> >
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-- 
Howard.
LANNet Computing Associates;
Your Linux people <http://www.lannetlinux.com>
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