[asterisk-users] Fax on FXS

Jason Aarons (US) jason.aarons at us.didata.com
Sat Jun 7 19:18:31 CDT 2008


While not on the FXS port itself other things to look for;

1) set the fax machine to disable Super G3 (33.3k), try to force it to
use G3 (14.4k).

2) set the fax machine to Disable ECM (Error Correction Mode)

3) If PSTN is T1 check span for errors, etc.

4) Some protocols have fax-passthrough and modem-relay 

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Matt
Watson
Sent: Saturday, June 07, 2008 1:00 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Fax on FXS

On June 7, 2008 11:37:20 am bilal ghayyad wrote:
> Hi List;
>
> What configuration needed to let my FXS send and
> receive FAX?
>

Your probably going to need to give some more details about your setup
before 
anybody can help you... theres really nothing special you need to
configure 
for an FXS port to attach a fax machine to it...

keep in mind that faxing over VoIP is extremely tricky at best, but if
your 
entire call path is TDM then you shouldn;t have much of a problem.

-- 
Matt Watson
http://www.mattgwatson.ca

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