Sometimes data connection works, and sometimes it doesn't
Ruben Fagundo (rfagundo@npv.com)
Mon, 14 Dec 1998 07:36:43 -0500
I don't think the problem is with the 3COM side, because I also tried a USR
28.8 and I got the same results. I suspected that the modem is not getting
the right data connection signal, and confusing the connection with a fax,
however I think the problem is coming from some place else. I am starting
to think that this friend of mine has left a fax machine connected to the
same line, or the remote modem is not initializing correctly. I think the
problem is on the remote end. Just this morning, I dialed the number
again, and when I noticed the modem was having trouble, I powered off the
modem, and picked up the handset, and I heard standard the fax training
signals, which means that either the modem had started responding as a fax
or something else is connected on that line. I have to investigate
further. Thanks for pointing out the problem.
At 07:43 AM 12/13/98 , Gert Doering wrote:
>Hi,
>
>On Sat, Dec 12, 1998 at 08:38:01PM -0500, Ruben Fagundo wrote:
>> I setup mgetty on my friends PC running Linux. He has a Motorolla 28.8
internal
>> bitsurfer modem. Faxes go in and out just fine, even better than my 3COM
56K
>> modem.
>
>... the 3com 56k is the problem, because...:
>
>> 12/12 14:59:50 dem waiting for ``CONNECT''
>> 12/12 14:59:50 dem got: ATA[0d]
>> 12/12 14:59:50 dem CND: ATA[0d][0a]+FHNG:
>> 12/12 15:00:46 dem found action string: ``+FHNG:''
>
>... it occasionally "identifies" the incoming call as "FAX" (and
>subsequently fails, understandably, sending an +FHNG: error code). I
>think the only remedy will be to switch off fax detection (mgetty -D),
>if reliability for PPP connections is really important for you.
>
>gert
>--
>USENET is *not* the non-clickable part of WWW!
>
//www.muc.de/~gert/
>Gert Doering - Munich, Germany
gert@greenie.muc.de
>fax: +49-89-35655025
gert.doering@physik.tu-muenchen.de
>
Ruben
==================================
Ruben Fagundo
T:617/244-6136
F:617/965-2002