asterisk users - Apr 2010 - How to set up Fax on Asterisk - Using analog Fax machines and HT502 (or FXS of a Digium TDM410P)

Hello Asterisk users,

We are having MANY but MANY problems configuring an analog fax machine to
work properly on Asterisk, the first thing we do was to plug in the Fax
analog machine to the FXS port of the Digium TDM410P, we set echocancel=no
on zapata.conf and also faxdetect=yes on general section, but our Asterisk
CRASH every time we try to send/receive fax!

We are using Asterisk 1.4.21 and Zaptel 1.4.11; the card does not shows any
interrupt in /proc/interrupts

We also tried with a Sangoma B600 on this machine and the same result! Then
we tried with the sangoma and digium card on another asterisk box, with
Asterisk 1.4.30 and DAHDI 2.2.x and the fax was not reliable 100% but at
least Asterisk vener went down

We cant make any upgrade of Asterisk/Zaptel due to some rules of the
customer, the do not want to use fax2email, they need to use the panasonic
fax machine, this is driving me crazy!

We also tried with a HT502 with passtrough fax mode and pcmu and pcma
enabled and the same result, asterisk does down when trying to receive/send
a fax

What could solve our problem? what else should we try about configuration?
just faxdetect=incoming and set echocancel=yes and that's all? Please your
help, we really need to put this working

Thanks in advance for all your help!

-- 
Saludos
Danny Dias
SkypeID: danny.dias1
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Danny Dias wrote:
> We are having MANY but MANY problems configuring an analog fax machine
> to work properly on Asterisk, the first thing we do was to plug in the
> Fax analog machine to the FXS port of the Digium TDM410P, we set
> echocancel=no on zapata.conf and also faxdetect=yes on general section,
> but our Asterisk CRASH every time we try to send/receive fax!
> 
> We are using Asterisk 1.4.21 and Zaptel 1.4.11; the card does not shows
> any interrupt in /proc/interrupts
> 
> We also tried with a Sangoma B600 on this machine and the same result!
> Then we tried with the sangoma and digium card on another asterisk box,
> with Asterisk 1.4.30 and DAHDI 2.2.x and the fax was not reliable 100%
> but at least Asterisk vener went down
So you've confirmed that a later release of Asterisk solves the problem
you are trying to resolve, but your customer won't let you use that
version. What do you expect people here to be able to do to assist you?
Either you upgrade to the version that has the problem resolved, or you
figure out how to backport the relevant changes into the version you are
running... but that seems to also violate your customer's restriction
that you can't change Asterisk versions.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
skype: kpfleming | jabber: kfleming at digium.com
Check us out at www.digium.com & www.asterisk.org

Can't upgrade the version..... how about buying a FXS gateway and be done
with the issue.  Go to ebay and search for AudioCodes.  You can get 1 FXS port
gateway for around $30 to 2 FXS at $85.  Probably the best bet is to convince
the customer to upgrade Asterisk.





________________________________
From: Danny Dias <ing.diasdanny at gmail.com>
To: asterisk-users at lists.digium.com
Sent: Thu, April 15, 2010 10:16:26 PM
Subject: [asterisk-users] How to set up Fax on Asterisk - Using analog Fax
machines and HT502 (or FXS of a Digium TDM410P)

Hello Asterisk users,

We are having MANY but MANY problems configuring an analog fax machine to work
properly on Asterisk, the first thing we do was to plug in the Fax analog
machine to the FXS port of the Digium TDM410P, we set echocancel=no on
zapata.conf and also faxdetect=yes on general section, but our Asterisk CRASH
every time we try to send/receive fax!

We are using Asterisk 1.4.21 and Zaptel 1.4.11; the card does not shows any
interrupt in /proc/interrupts

We also tried with a Sangoma B600 on this machine and the same result! Then we
tried with the sangoma and digium card on another asterisk box, with Asterisk
1.4.30 and DAHDI 2.2.x and the fax was not reliable 100% but at least Asterisk
vener went down

We cant make any upgrade of Asterisk/Zaptel due to some rules of the customer,
the do not want to use fax2email, they need to use the panasonic fax machine,
this is driving me crazy!

We also tried with a HT502 with passtrough fax mode and pcmu and pcma enabled
and the same result, asterisk does down when trying to receive/send a fax

What could solve our problem? what else should we try about configuration? just
faxdetect=incoming and set echocancel=yes and that's all? Please your help,
we really need to put this working

Thanks in advance for all your help!

-- 
Saludos
Danny Dias
SkypeID: danny.dias1



      
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