Re: [hylafax-users] What is your percentage of hard failures

[Rance Hall <rhall@xxxxxxxxxxxxxxxxxx>]

Andrew Taylor wrote:

> We have 18 modems here in the US handling about 4000 fax jobs a day 
> with  a 35% average failure rate.
> We also run HylaFAX in 12 overseas locations with single modem setups 
> and see from 30-50% failure rate.
> I know of 1 fax machine that will not work with our MultiTechs, a 
> Lexmark T520 printer/modem but I am sure there are others.
> The most common problems are bad fax numbers or extremely busy numbers.
> Regards,
> Andrew Taylor
>
> Peter Schoenster wrote:
>
> > Hi,
> >
> > I am getting over 50% failures in outgoing faxes. It
> > doesn't make sense to me. It would make sense if I got
> > 100% failure. I'm not talking about busy signals etc.
> > I'm talking about when hylafax connects to a remote
> > fax machine but fails to commmnicate, time and time
> > again.
> > I get these 2 errors:
> >
> > ERR No carrier detected = when using Class 1
> > No answer (T.30 T1 timeout) = when using Class 2.0
> >
> > The same destination fax will return those 2 errors
> > depending on what I set for ModemType in config.modem
> >
> > I've searched the archives and the web and I found 2
> > guys in the last 4 years who seemed to have the same
> > problem as me. I sent an email to both. One guy said
> > it was never resolved and he just used mgetty+sendfax
> > on freebsd and has been fine with that.
> > Perhaps this is normal? Are there fax machines with
> > which hylafax cannot communicate?  I have been testing
> > with one fax number. The person who owns the fax says
> > that they see "Receiving ..." but then nothing happens
> > and the call just terminates. If using my Savin fax
> > machine I can send a fax to this fax machine.
> >
> > I looked in some old logs from our fax server and it
> > seems like it has always been this way. I recently had
> > to rebuild our linux box which serves as the fax
> > gateway and so I've been testing. In the past the
> > previous admin would ask me if our apps were sending
> > faxes. I'd test it against our local fax machine and
> > if it worked I said all was well. I never though to
> > test against other types of fax machines. Our previous
> > admin would send out results which showed successful
> > faxes sent but not failures. Yet in the logs from the
> > previous linux configuration I see the same number of
> > errors.
> >
> > Anyone got a clue on this one? I did try adding the
> > commas as someone suggested as I was just curious but
> > it made no difference.
> >
> > Thanks.
> >
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Ive been struggling with this problem for about a month now.

At the suggestion of someone on this list, I changed the class of the 
fax modem and that seemed to help, but from what I see here, that isnt 
your problem.

I have some people who have fax machines hooked up to their voice line, 
and you have to call them and tell them you have a fax, and you have to 
do it from the fax machine with a phone handset so that you can hit 
start when they hit receive

I had to rewrite my database with an additional column for "can receive 
automatic faxes" and if the answer is no dont send a fax.

This seemed to help as well

however, I still get user complaints that they are trying to send an 
automatic fax,and the fax machine at the other end tries to recieve from 
Hylafax server but can't for some reason.

our hylafax is a send only experiment, and so if I have to scrap it, 
thats fine. I thought it would be a time saver for our shipping 
department not to have to go to the fax machine, and send a fax by hand 
as many times as they do.  and since its just a test. we've kept our fax 
machines to recieve with (we get about 1/3 the amount of faxes in as we 
send out)

one of my problems might also be our choice of faxmodem.

I just got a cheap external used serial port faxmodem, and was able to 
send faxes with it in a test environment.

this modem may also be a trouble maker for us, but I couldnt justify the 
expense of a new high volume modem witout a "proof of concept" first.

for my money the concept has been proven, but the practical usefulness 
is questionable.

another issue ive been wondering about is the quailty of data traffic 
through our local phone company,  even though we are only a couple of 
blocks from the phone company, we are still in a rural area.

Im certainly interested to see what you find out on this front.

--

Rance Hall
System Administrator
Nebraska Turkey Growers Cooperative
rhall@xxxxxxxxxxxxxxxxxx
1-308-468-5711 Ext. 106



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