Re: AW: flexfax: Problems with MPS (more pages, same document)

["Bruce M. Hahne" <hahne@aisol.net>]

Thomas Tornblom <Thomas.Tornblom@Hax.SE> writes:

> Add:
> 
> Class2DCCQueryCmd:     "!(0,1),(0-5),(0-2),(0-2),(0,1),(0),(0),(0-7)"
> 
> to the config file. This disables the ECM support for the modem. I'm not
> sure if ZyXEL ever has gotten around to fix this. I believe the bug is still
> present, both for the 1496 and 2864 series modem.

A config line like the above is already present in the zyxel-1496e-2.0 config
file which comes with Hylafax.  So ECM is disabled by default.  I don't
believe that it's an ECM problem.  We used the default Zyxel config file
(ECM disabled) and still saw the problem noted by the author below: first
page sent multiple times, followed by an abort.  We have seen this behavior
for several destination fax numbers.  It tends, as one might imagine, to get
the recipient very upset when they get 9 or so copies of the same first page,
and nothing else.

I gave Zyxel support one of the several destination fax numbers which was
giving us problems and their response was "problem noted; switch to class 1
for that destination number".  That's not acceptable; this is an automated
system and we can't just flip back and forth between class 2.0 and class 1
on a whim.

Our solution was to change modem vendors.  For outbound faxes we now use
modems with a Lucent chipset in them.  (But I'd switch back if I could get a
working fix...)

Bruce Hahne                                  TEL: 1-408-248-2275
Access Internet Solutions Inc.               FAX: 1-408-248-2290
Worldwide Internet fax services              Web: www.aisol.net
Santa Clara, CA                              Email: hahne@aisol.net




> Care to comment ZyXEL support?
> 
> Thomas
> 
> > 
> > Hi there,
> > 
> > this seems to be a problem of the ZyXEL 1496 modem series. I have a 1496E which 
> behaves exactly the
> > same when communicating with some fax machines. Does anybody know how to fix 
> this without changing 
> > the modem? Has anybody tried using a newer firmware revision? 
> > 
> > 	Alexandre
> > --
> > Alexandre Meissonnier
> > Dohle Handelsgruppe Systemberatung GmbH
> > 53719 Siegburg (Germany)
> > ameissonnier@dohle.com
> > 
> > -----Ursprüngliche Nachricht-----
> > Von:	Andreas Busse [SMTP:ab@ivm.net]
> > Gesendet am:	Montag, 6. Oktober 1997 17:34
> > An:	flexfax@sgi.com
> > Cc:	Andreas Busse
> > Betreff:	flexfax: Problems with MPS (more pages, same document)
> > 
> > 
> > Hello there,
> > 
> > I'm using the latest HylaFax (hylafax-v4.0pl1) on a Linux 2.0.27 box
> > together with a Zyxel 1496EG+ and have problems with sending
> > multi-page documents to some other fax machines. Here's a part
> > of the debug output:
> > 
> > Oct 06 15:13:06.12: [12876]: SEND begin page
> > Oct 06 15:13:44.59: [12876]: SENT 46502 bytes of data
> > Oct 06 15:13:44.59: [12876]: SEND 1D RTC
> > Oct 06 15:13:44.59: [12876]: SEND end page
> > Oct 06 15:13:44.59: [12876]: SEND send MPS (more pages, same document)
> > Oct 06 15:14:00.28: [12876]: --> [5:ERROR]
> > Oct 06 15:14:00.28: [12876]: SEND recv RTN (retrain negative)
> > Oct 06 15:14:00.28: [12876]: <-- [7:AT+FDT\r]
> > Oct 06 15:14:06.11: [12876]: --> [20:+FCS:1,3,0,2,0,0,0,3]
> > Oct 06 15:14:06.11: [12876]: --> [7:CONNECT]
> > Oct 06 15:14:06.11: [12876]: SEND begin page
> > Oct 06 15:14:44.58: [12876]: SENT 46502 bytes of data
> > Oct 06 15:14:44.58: [12876]: SEND 1D RTC
> > Oct 06 15:14:44.58: [12876]: SEND end page
> > Oct 06 15:14:44.58: [12876]: SEND send MPS (more pages, same document)
> > Oct 06 15:15:00.25: [12876]: --> [5:ERROR]
> > Oct 06 15:15:00.25: [12876]: SEND recv RTN (retrain negative)
> > 
> > I.e, Hylafax sends the first page, send MPS, gets an error message
> > back and retransmits the same page, resulting in the same error
> > again. And so on. As you can imagine, users with such fax machines
> > complain about getting the same page 9 times (3 times for each trial).
> > Even worse, the first page is a cover page only, so these users
> > never see the real message text.
> > 
> > If you have any suggestions, please let me know. I'm not subscribed
> > to list, so please mail me directly!
> > 
> > With many thanks in advance,
> > Andy
> > 
> > 
> > --
> > -------------------------------------------------------------- ab@ivm.net ---
> >   | \    / |\  /|  Gesellschaft fuer   | Andreas Busse
> >   |  \  /  | \/ |  Internet,           | Im Hufen Boden 16, D-53498 Waldorf
> >   |   \/   |    |  Vernetzung und      | tel 02636-97690 fax 02636-9769-999
> >                    Mehrwertdienste mbH | info@ivm.net - http://www.ivm.net/
> > -----------------------------------------------------------------------------
> > 
> > 
> > 
> 
> Real life:      Thomas Törnblom             Email:  Thomas.Tornblom@Hax.SE
> Snail mail:     HB Hax                      Phone:    +46  18 290 290
>                 Banvallsvägen 14            Fax:      +46  18 290 291
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