[hylafax-users] Question about USR Faxmodems incorrectly initiating

[Dave Stubbs <dave.stubbs@xxxxxxxxxxx>]

Hello all,

I've been a happy hylafax user for many years, and never had a problem I 
couldn't beat yet.  However, this one has me up against a wall.

The situation:

I have a server running OpenSuSE 11.2, with the standard packaged 
version of hylafax installed.  SuSE refers to it as version 4.4.4-19.3.  
It has a single USR Sportster attached, which receives faxes without a 
problem (post-processing, converting to PDF, sending to email, etc etc 
all working fine).

The Problem:

It won't send faxes properly.  More precisely, when it tries to send a 
fax, it dials, and then does not send fax tones.  It instead begins the 
squelch noise, as if it is the receiving fax machine, instead of sending 
tones and waiting for the answerer to begin handshake.   I had 5 
different USR modems laying around, going back to some old 33.6 
versions, and I tried them all - getting the same issue.  I have re-run 
faxaddmodem and configured the modem as Class 1 and Class 2.0, but the 
problem persists in either setting.

For some extra troubleshooting, I involved minicom.  I discovered that 
AFTER trying to send a fax, if I load minicom and tell the modem to dial 
out to my cel phone, when I answer the cel phone the faxmodem is already 
starting the fax squeal.  However, if I issue the atz command in minicom 
(resets modem) and then dial my cel phone, it works just fine, and I 
hear silence on the line when I answer.  Then, if I exit minicom and try 
to send another fax with hylafax, and then go back into minicom and dial 
my cel phone, I hear the squeal again.  Entering atz and dialing again 
once more produces a silent line.

Before and after issuing the atz command, if I type ati4 and look at 
every single setting, they're all the same.  So there must be some other 
fax-related setting that doesn't show up in ati4, which is causing this, 
and is actually being sent to the modem by hylafax (it seems) but for 
the life of me I can't figure out what it is.

I also upgraded the firmware on the USR modem but the problem persists.

Has anyone seen this before?  Where do I look to fix this problem?


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