Re: [hylafax-users] Receive Errors

["Josh Welch" <jwelch@buffalowildwings.com>]

The push recently has been to use class 1, the theory being that in this
mode HylaFAX code can be used to overcome shortfalls in manufacturer
firmware. The old push towards class 2 was, if I recall correctly, a result
of concern that the PC hardware couldn't do the processing without
resulting in timing issues with the fax receipt. The hardware available
today, or even a couple years ago, makes this a moot point. There has been
a couple of extensive threads regarding class 1 vs class 2, you can search
the archives for further info.

My understanding is also that there is some work being done to modify site
content away from the previous class 2 bias, someone correct me if I am
speaking out of turn.

Lastly, it has been stated that virtually any modem could be made to work
with an extremely high rate of success while running in class 1, the
advantage of being able to use HylaFAX code to overcome manufacturer
shortfalls. I haven't been able to put this to the test, as the multitechs
I have don't do class 1, but it sounds logical.

I would think that you should be able to get your Multitechs running okay
in class 2. If you are running the MT1932ZDX I know there is a chip upgrade
available with some fixes that improve faxing, I forget exactly what the
name of it is, but one of the other list readers pointed it out, perhaps
they can chime in. Otherwise, I've heard good things about the ZyXEL, and
all of the ones listed on the site support class 1.

> -----Original Message-----
> From: hylafax-users-bounce@hylafax.org
> [mailto:hylafax-users-bounce@hylafax.org]On Behalf Of bradw
> Sent: Monday, March 18, 2002 11:59 AM
> To: Geoff Silver
> Cc: Lee Howard; hylafax-users@hylafax.org
> Subject: Re: [hylafax-users] Receive Errors
>
>
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> OK, I'm kind of confused. Why the push to use class 1? This would seem
> contrary to what is indicated on the web site.
>
> we first tried some hayes accura 336 flash modems. they work for a while,
> and then they stop answering the phone's for god knows what reason.
>
> So I just purchased the multitech modem based on what I saw in those
> pages. If that info is so wrong, why is it even there? Is anyone
> doing any
> work to try and update the info?
>
> anyway, still having trouble.
>
>
> so my question is, if i want the software to work, what modem _should_ I
> buy? an which class should i run it in?
>
> On Wed, 13 Mar 2002, Geoff Silver wrote:
>
> > > There is no approved modem list any more, that I know of.  To which
> > > document do you refer?  I will have it zapped immediately.
> >
> > http://www.hylafax.org/modems.html
> > http://www.hylafax.org/Modems/
> >
> > In particular, the Multitech was chosen because the document
> says "If you
> > are selecting a modem to use with this software you will do best if you
> > use one of the recommended Class 2 or Class 2.0 modems; rather than a
> > Class 1 modem."
> >
> > > > 	Multi-Tech MT1432, MT224BA, and MT1932ZDX modems
> > > > 		Class 1:   No
> > > > 		Class 2:   Yes
> > > > 		Class 2.0: No
> > >
> > > If the modem is capable of Class 1, by all means PLEASE use it.
> >
> > Well, I changed it and it seems to work.  I'll let you know if
> I have any
> > problems.
> >
> > > There are two patches from 4.1 to 4.1.1 which directly
> influence Class 1
> > > protocol (the Class1*WaitCmd and the Class1SendMsgDelay
> patches).  If you
> > > experience frequent MPS/EOP errors in 4.1, these will likely help.
> >
> > Okay, thanks.
> >
> >
>
> - --
> - --
> Brad Wyman           |\      _,,,---,,_
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