Problems receiving fax from Rockwell to USR Courier

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Hi,

On Mon, May 03, 1999 at 06:21:48PM -0700, Singsing Wong wrote:
>  >05/03 01:46:27 yS0  fax_send: 'AT+FDR'
>  >05/03 01:46:27 yS0  fax_wait_for(CONNECT)
>  >05/03 01:46:35 yS0  fax_id: '+FTI:"                 732"'
>  >05/03 01:46:36 yS0  transmission par.: '+FCS:0,4,0,2,0,0,0,0'
>  >05/03 01:46:44 yS0  fax_id: '+FTI:"                 732"'
>  >05/03 01:46:44 yS0  transmission par.: '+FCS:0,3,0,2,0,0,0,0'
>  >05/03 01:46:53 yS0  fax_id: '+FTI:"                 732"'
>  >05/03 01:46:53 yS0  transmission par.: '+FCS:0,2,0,2,0,0,0,0'
> What this said is that the Courier is asked to switch to
> the data carrier, AT+FDR(waiting for CONNECT) but failed and it
> retried at lower speed(from 14400 to 9600, 7200, 7200) but
> still failed.

"data" carrier in the sense of "page data transmission carrier", not
"data mode" in the sense of FAX vs. DATA.  But besides this, yes.

There is something fishy here - stepping down to 7200 isn't bad in itself,
but the fact that it times out afterwards looks like the USR firmware is
getting badly confused.

> My take is nothing can be done as there is really very little
> thing that is controllable for a class 2.0 fax modem. Everything
> is in the firmware.

Exactly.  And the USR firmware doesn't seem to be up to "quality" fax 
reception yet - sending is fine, reception gives weird effects fairly
often.

I will forward the logfile to USR when I'm back from vacation, but that
won't be before next weekend (sorry).

gert
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Gert Doering - Munich, Germany                             gert@greenie.muc.de
fax: +49-89-35655025                        gert.doering@physik.tu-muenchen.de