[Asterisk-Users] Fax and SIP

[Jared Smith]

I've never tried it with SIP, but I have faxed between to asterisk boxes
on the same network via IAX and IAX2.  The secret was to set the codec
to ulaw or alaw.  (Certain codecs, such as GSM, compress the data too
much for the fax machines to be able to communicate effectively.)

Jared

On Thu, 2003-06-26 at 08:10, Eduardo Goncalves wrote:
> On Thu, 26 Jun 2003 09:01:21 +0200
> Florian Overkamp <florian at obsimref.com> wrote:
> 
> > Hi there,
> > 
> > I have made this setup work without any special modifications. I expect it 
> > raises some strict requirements on the latency of your IP network, so that 
> > might be an issue.
> > 
> > |cisco-ata186|----sip-----|asterisk|-------E400P PRI -----PSTN
> > 
> > The IP network was full blast 100Mbit/s with one router inbetween.
> > 
> 
> 	I've tested with both on the localnet (same ethernet hub) and I still get errors on the fax machine.
> 
> Eduardo
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