Errors with sendfax in 'normal' mode only?

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Hi,

On Tue, Sep 22, 1998 at 10:51:36PM +0200, Steeve wrote:
> The fine mode fax works EVERY time.  The normal mode fax
> fails EVERY time.  The output from the log file near the
> failure is,

Interesting pattern, but from the logs, it's just (Yet Another) USR
Sportster firmware bug.

> 09/22 16:25:26 yS3  sendfax: honouring DCD (carrier) drops now
> 09/22 16:25:26 yS3   fax_send_page("fn1.g3") started...
> 09/22 16:25:26 yS3   tio_set_flow_control( HARD )
> 09/22 16:25:26 yS3  fax_send: 'AT+FDT'
> 09/22 16:25:26 yS3  fax_wait_for(CONNECT)

Basic handshake is estabilished just fine.

"I want to start a page now"

> 09/22 16:25:26 yS3   fax_wait_for: string 'AT+FDT'
> 09/22 16:25:26 yS3   fax_wait_for: string '+FCS:0,3,0,2,0,0,0,0'
> 09/22 16:25:26 yS3  transmission par.: '+FCS:0,3,0,2,0,0,0,0'

Hmmm, let's try "normal, 9600 bps, 0 delay".

> 09/22 16:25:32 yS3   fax_wait_for: string '+FCS:0,3,0,2,0,0,0,0'
> 09/22 16:25:32 yS3  transmission par.: '+FCS:0,3,0,2,0,0,0,0'

The other end didn't like it. (I would have to see the beginning of the
log file to see the reason, I assume the "0 delay" part is wrong).

> 09/22 16:25:39 yS3   fax_wait_for: string '+FCS:0,3,0,2,0,0,0,0'
> 09/22 16:25:39 yS3  transmission par.: '+FCS:0,3,0,2,0,0,0,0'

The other end still doesn't like it, so we try a third time.

> 09/22 16:25:47 yS3   fax_wait_for: string '+FHS:25'

... which fails as well.  This is something the USRs are bad at, if one
attempt to start a pre-page handshake fail, it will retry with the same
parameters, and (most likely) fail again - until it gives up.

> 09/22 16:25:47 yS3  connection hangup: '+FHS:25'
> 09/22 16:25:47 yS3   (DCS sent three times without response)** found **

... with exactly this error message.

> The complete logs for the fine and normal send are included below.

Ah.  Let's see:

> 09/22 16:25:26 yS3   fax_wait_for: string '+FIS:1,3,0,2,1,0,0,2'

Here, the other end signals "I can do fine, 9600 bps, but I'm slow (,2)".

> 09/22 16:25:26 yS3   fax_wait_for: string '+FCS:0,3,0,2,0,0,0,0'

The USR says "we'll do normal, 9600, and quickly".  This HAS to fail.

> Any help would be appreciated!  I am using mgetty+sendfax 1.1.18

Actually, there is nothing mgetty can do. It's a pure modem firmware
issue - the modem is constructing the wrong response from its input
data.  Maybe a firmware upgrade helps, otherwise we should report this
to USR -- so please get the very latest firmware version, and if it
still fails, please post the output of "mgetty/tools/mid ttyS3" and 
the complete log file to this list.  RJ or I can forward it to the
engineers...

gert
-- 
Gert Doering
Mobile communications ... right now writing from *AWAY* :-)) 
... mobile phone: +49 177 2160221 ... or mail me:  gert@greenie.muc.de