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

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

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
>  

Did you try my suggestions?

 http://www.hylafax.org/archive/2005-08/msg00411.php

If so, what were the results?

If the results still indicate the same thing, then the problem is your 
USR modem.  I have had many a USR modem not be able to handshake with a 
remote fax machine and would behave exactly as you're describing.  In my 
experience it only happened with a few, perhaps somewhat rare, fax 
machines, however... it was nothing like 50%.

> 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. 
>  

Well, good for him, I guess.  I wouldn't read anything into this, 
though.  Back in 2000 I was testing various fax products and had a USR 
modem that I was using.  I found one of these destinations that would 
report "NO CARRIER" or "no answer" or "T.30 timeout" (all mean the same 
thing, essentially, when you're the sender - that the modem could not 
find a fax machine on the other end).  I tried both Class 1 and Class 
2.0 using HylaFAX, mgetty+sendfax, efax, RelayFax, and another couple of 
other Windows fax packages (all using this same USR modem).  All of them 
resulted in the same thing.  I switched the modem to a non-USR modem 
(Rockwell chipset) and then the problem went away.  I then tried a few 
different USR modems, and I don't remember exactly, but I seem to recall 
that all of them had the same trouble.

> Perhaps this is normal?

Perhaps it's normal for USR users, but it's not supposed to be normal, no.

> Are there fax machines with
> which hylafax cannot communicate?

Not to my knowledge.  But that's a loaded question, too.  HylaFAX relies 
on the modem for much of the work (more in Class 2/2.0/2.1 than in Class 
1/1.0).  So if there's a problem with the modem that HylaFAX cannot work 
around, then HylaFAX can't do much about it.

Lee.


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