NOT true and I have proven that for the last year.
Jonn
From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Rob Hillis
Sent: Tuesday, January 01, 2008 4:13 PM
To:
Subject: Re: [asterisk-users] Asterisk 1.4 Fax
I'd say "consider yourself very lucky". I know I did some testing here some time ago with faxing over VoIP.
- One extension to another over G711a with both extensions on the same LAN - worked 95% of the time
- One extension on my Asterisk server to an Extension on a friend's Asterisk server using G711a via IAX - 95% failure rate. Both of us awere on the same ISP and had ping times of ~40ms between us.
However, in a live environment, I convert a PSTN call to a t.38 encoded call and can send the fax just about anywhere I damn well want (where the remote end supports t.38) with a 95% success rate.
t.38 is the key to successful faxing over a VoIP network. Without it, you're begging for trouble.
Doug Lytle wrote:
Jonn R Taylor wrote: If I had ANY failed faxes I would here about it. Iaxmodem creates a log of its own, so when I get a connection that fails hylafax sends the failure to me. One of the things that I found is you need to add nojitterbuffer to the iaxmodem config file,
Really? I'll have to do some testing, I've never tried since I've read you can't. Doug 
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