asterisk users - Aug 2014 - Sending and receiving fax with Digium FFA

Hello.
I've been trying to setup Free Fax for Asterisk on a Debian machine with 
Asterisk 1.8. I have managed to register and installed the Digium 
modules. Sending and receiving through it have resulted in failure. The 
output of fax show capabilities is:
Registered FAX Technology Modules:

     Type            : DIGIUM
     Description     : Digium FAX Driver
     Capabilities    : SEND RECEIVE T.38 G.711 MULTI-DOC

     1 registered modules

We have a fax blackbox  through which I'm trying to send faxes to the 
Asterisk server. Every time that I send a fax I get a timeout error. 
Been tinkering with the settings and whatnot to get it working.



The extension to receive fax:
exten => recvfax,1,Verbose(2,Receiving fax)
         same => n,Set(FAXDEST=/tmp/fax)
         same => n,Set(tempfax=${STRFTIME(,,%C%y%m%d%H%M)})
     same => n,Wait(8)
         same => n,ReceiveFax(${FAXDEST}/${tempfax}.tiff,f,d)
It's without most of the tinkering I've done, which are: setting ecm to 
no, tweaking the min/max rate and other things.

Also, because the fax machine can't print (half broken), we receive our 
faxes through a fax to email service we have subscribed to, so the tests 
for sending have that one as a destination.

The extension to send fax:
exten => sendfax,1,Verbose(2,Sending fax)
     same => n,Set(faxlocation=/tmp)
     same => n,Set(faxfile=fax.tiff)
     same => n,Set(FAXOPT(headerinfo)=Testing FAX)
     same => n,Set(FAXOPT(localstationid)=123456)
     same => n,SendFax(${faxlocation}/${faxfile},d)
     same => n,Verbose(2, Fax Status: ${FAXOPT(error)})
I did the exact same thing, and tried sending from both a SIP channel 
and a DAHDI line. The weird thing is that when I am sending through 
Asterisk I get, as a response to fax, a recorded message from the telco. 
Sending through the same line with the fax machine works perfectly.

Any advice and help is welcome.
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> Hello. 
> I've been trying to setup Free Fax for Asterisk on a Debian machine 
> with Asterisk 1.8. I have managed to register and installed the 
> Digium modules. Sending and receiving through it have resulted in 
> failure. The output of fax show capabilities is:
>     Registered FAX Technology Modules:
> 
>     Type            : DIGIUM
>     Description     : Digium FAX Driver
>     Capabilities    : SEND RECEIVE T.38 G.711 MULTI-DOC
> 
>     1 registered modules
> 
> We have a fax blackbox  through which I'm trying to send faxes to 
> the Asterisk server. Every time that I send a fax I get a timeout 
> error. Been tinkering with the settings and whatnot to get it working.
> 
> 
> 
> The extension to receive fax:
>     exten => recvfax,1,Verbose(2,Receiving fax)
>         same => n,Set(FAXDEST=/tmp/fax)
>         same => n,Set(tempfax=${STRFTIME(,,%C%y%m%d%H%M)})
>         same => n,Wait(8)
>         same => n,ReceiveFax(${FAXDEST}/${tempfax}.tiff,f,d)
> It's without most of the tinkering I've done, which are: setting
ecm
> to no, tweaking the min/max rate and other things.
> 
> Also, because the fax machine can't print (half broken), we receive 
> our faxes through a fax to email service we have subscribed to, so 
> the tests for sending have that one as a destination. 
> 
> The extension to send fax:
> exten => sendfax,1,Verbose(2,Sending fax)
>     same => n,Set(faxlocation=/tmp)
>     same => n,Set(faxfile=fax.tiff)
>     same => n,Set(FAXOPT(headerinfo)=Testing FAX)
>     same => n,Set(FAXOPT(localstationid)=123456)
>     same => n,SendFax(${faxlocation}/${faxfile},d)
>     same => n,Verbose(2, Fax Status: ${FAXOPT(error)})
> I did the exact same thing, and tried sending from both a SIP 
> channel and a DAHDI line. The weird thing is that when I am sending 
> through Asterisk I get, as a response to fax, a recorded message 
> from the telco. Sending through the same line with the fax machine 
> works perfectly.
> 
> Any advice and help is welcome.
Can you post the output of the Asterisk CLI from a failed fax call? What 
you have looks ok for the most part, at least on the receiving end. Did 
you install the license key for the Free FAX for Asterisk module?
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Hello;

    Just taking a quick glance at it, I think you have a syntax error in
your dial plan. Instead of ReceiveFax(${FAXDEST}/${tempfax}.tiff,f,d,
shouldn't it be ReceiveFax(${FAXDEST}/${tempfax}.tiff,fd) with no comma
between the f and d options?

Regards;

John

    

 

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Dumitru
Sent: Monday, August 11, 2014 9:39 AM
To: asterisk-users at lists.digium.com
Subject: [asterisk-users] Sending and receiving fax with Digium FFA

 

Hello. 
I've been trying to setup Free Fax for Asterisk on a Debian machine with
Asterisk 1.8. I have managed to register and installed the Digium modules.
Sending and receiving through it have resulted in failure. The output of fax
show capabilities is:
    Registered FAX Technology Modules:

    Type            : DIGIUM
    Description     : Digium FAX Driver
    Capabilities    : SEND RECEIVE T.38 G.711 MULTI-DOC

    1 registered modules

We have a fax blackbox  through which I'm trying to send faxes to the
Asterisk server. Every time that I send a fax I get a timeout error. Been
tinkering with the settings and whatnot to get it working.



The extension to receive fax:
    exten => recvfax,1,Verbose(2,Receiving fax)
        same => n,Set(FAXDEST=/tmp/fax)
        same => n,Set(tempfax=${STRFTIME(,,%C%y%m%d%H%M)})
        same => n,Wait(8)
        same => n,ReceiveFax(${FAXDEST}/${tempfax}.tiff,f,d)
It's without most of the tinkering I've done, which are: setting ecm to
no,
tweaking the min/max rate and other things.

Also, because the fax machine can't print (half broken), we receive our
faxes through a fax to email service we have subscribed to, so the tests for
sending have that one as a destination. 

The extension to send fax:
exten => sendfax,1,Verbose(2,Sending fax)
    same => n,Set(faxlocation=/tmp)
    same => n,Set(faxfile=fax.tiff)
    same => n,Set(FAXOPT(headerinfo)=Testing FAX)
    same => n,Set(FAXOPT(localstationid)=123456)
    same => n,SendFax(${faxlocation}/${faxfile},d)
    same => n,Verbose(2, Fax Status: ${FAXOPT(error)})
I did the exact same thing, and tried sending from both a SIP channel and a
DAHDI line. The weird thing is that when I am sending through Asterisk I
get, as a response to fax, a recorded message from the telco. Sending
through the same line with the fax machine works perfectly.

Any advice and help is welcome.

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