[asterisk-users] FAX over T1 Question

[Amaru Netapshaak]

Bryce,

I have modified the settings on my Rhino CB according to your message..
It will take a day or so for me to be able to verify if that has helped or not.

My current settings (now) for all FXS channels is as follows:

Mode: LOOP
PwrDn: 0 sec
I-Loop: 25.0ms
Tx: -2db
Rx: -2db
Ring: 20
On: 20

How does that look?

Thanks for your response!

++Amaru

--- On Fri, 9/5/08, Bryce Chidester <brycec at rhinoequipment.com> wrote:
From: Bryce Chidester <brycec at rhinoequipment.com>
Subject: Re: [asterisk-users] FAX over T1 Question
To: postfix_amaru at yahoo.com, "Asterisk Users Mailing List - Non-Commercial Discussion" <asterisk-users at lists.digium.com>
Date: Friday, September 5, 2008, 5:02 PM

Amaru,
Something to double check are the gain levels and current-loop settings on your channel bank. For fax machines, we generally recommend setting the FXS channels connected to fax machines to -2 gain and I-Loop to 25.0mA. To do so, unlock the CB (1-3-2-4 sequence), then select Configure (1), Channel (3), then use the NxtFld (1) and ChgVal (2) buttons to navigate to the correct channels (or A-FXS for all FXS channels), and set the parameters. Be sure to press Save (3) when done for the settings to take effect.
Bob, in order to be a proper G.168 EC, it would automatically disable itself on the channel as soon as it hears the fax tone.

Regards,
Bryce Chidester
Rhino Equipment Corp.
bryce at rhinoequipment.com


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On Fri, Sep 5, 2008 at 09:19, Amaru Netapshaak <postfix_amaru at yahoo.com> wrote:
> Hello,
>
> I have a Sangoma A104d T1 card, a Rhino 24-port FXS box, and am running

> Asterisk 1.4.21.2
>
> FAXing works, but not so reliably. I'm wondering what I might have to do in
> order to make this work. I have my FAX machines connected to individial

> FXS ports on my Rhino FXS channel bank, and that Channel Bank is
> connected to port #2 on my Sangoma A104d.
>
> All my incoming calls come across a PRI which is connected to
> port #1 on that Sangoma Card.

>
> Port #2 is configured to get its timing from port #1.
>
> Right now, when a FAX comes in, it hits the corresponding extension in
> my extensions.conf, and then I have it Dial the appropriate Zap channel. eg:

>
> exten => 1112222,1,dial(Zap/23,20)
>
> 1112222 being the FAX number in question. (obviously).
>
> Is this the right thing to do?=A0 I constantly see in my CLI
>
> "Fax detected on Zap/XX, but not FAX extension"

>
> Should I be transferring these calls to the right Zap channel instead of
> Dialing? Or should I be using that new fangled "ChannelRedirect" ?
>
> Im pretty much lost on this.. any direction/advice is appreciated!!

>
> Thank you!
>
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