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US Robotics MessagePlus" always in auto answer mode...

Author Message
dimke.fax at (no spam) uni.de...
Posted: Thu Jan 22, 2009 9:28 am
Guest
Hi there,

just one question: I got a USRobotics "Sportster MessagePlus" Modem
for dial up internet access and sending Faxes.
It works fine, but after a few days the green "ARQ/FAX" led now blinks
and indicates that someone spoke one or more messages onto it. So it
seems to be in auto answer mode, though the S0 register is "000".

But, this, in my understanding, means, that the modem must not answer
any call, neither fax nor voice. But instead it does.

B.t.w., I already tried to run USR "phone tools" in Wine under
Mandriva Linux, but the relevant functions lead to errors like "not
enough memory".

Is there an additional register to set or clear to prevent or anable
auto answer mode?

Best regards,

Markus

--
Please reply to group only.
For private email please use http://www.dipl-ing-kessler.de/email.htm


..
 
Moe Trin...
Posted: Fri Jan 23, 2009 1:54 am
Guest
On Thu, 22 Jan 2009, in the Usenet newsgroup comp.dcom.modems, in article
<8b6a32c3-3a62-439c-ba77-fa94fb18d3e3 at (no spam) w1g2000prk.googlegroups.com>,
dimke.fax at (no spam) uni.de wrote:

NOTE: Posting from groups.google.com (or some web-forums) dramatically
reduces the chance of your post being seen. Find a real news server.

Quote:
just one question: I got a USRobotics "Sportster MessagePlus" Modem
for dial up internet access and sending Faxes.
It works fine, but after a few days the green "ARQ/FAX" led now blinks
and indicates that someone spoke one or more messages onto it. So it
seems to be in auto answer mode, though the S0 register is "000".

Are you sure of that meaning of the light?

Quote:
But, this, in my understanding, means, that the modem must not answer
any call, neither fax nor voice. But instead it does.

That's an external modem, and it has DIP switches, right? They should
be on the back of the modem, or the right side as I recall. Find your
modem manual (or download a copy, perhaps from
http://www.usr-emea.com/support/s-prod-template.asp?loc=emea\prod=sportster
and look at the section describing the function of each switch. One of
them (switch 5 on my old Sportster 56K) is "Auto Answer Suppression",
and when the switch is ON (the default) it disables Auto Answer.

Quote:
I already tried to run USR "phone tools" in Wine under Mandriva Linux,
but the relevant functions lead to errors like "not enough memory".

[compton ~]$ whatis minicom
minicom (1) - friendly serial communication program
[compton ~]$

You need to set up the 'Modem Initialization String" to "AT&F0" (which
resets to factory defaults), then give the modem commands

AT$
AT&$
ATD$
ATS$

to see the "on-line help" (short-form menu).

Old guy
 
Franc Zabkar...
Posted: Mon Jan 26, 2009 2:40 am
Guest
On Sun, 25 Jan 2009 18:38:01 +0100, Markus R. Keßler
<dimke.fax at (no spam) uni.de> put finger to keyboard and composed:

Quote:
The point is, the standard setting is to answer every call after 4 ring tones and store the information. Either voice message or fax.

And this is definitely not what I want. This is a shared line and other people want to answer incoming calls manually. According to the spec I can set the modem to "Message mode" off via "at +mcs=0", i.e, "message control switch" is off, but, after the next "atz" and switch off and on again it will be "1". So, whenever KPPP makes a dial up internet connection and therefore resets the modem by sending "atz" the the next day when powering on the machines the modem is in "answering machine" mode again.

Can you save your preferred settings in NVRAM using the AT&Wn command?

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.
 
Franc Zabkar...
Posted: Mon Jan 26, 2009 6:05 am
Guest
On Thu, 22 Jan 2009 01:28:46 -0800 (PST), "dimke.fax at (no spam) uni.de"
<dimke.fax at (no spam) uni.de> put finger to keyboard and composed:

Quote:
Hi there,

just one question: I got a USRobotics "Sportster MessagePlus" Modem
for dial up internet access and sending Faxes.
It works fine, but after a few days the green "ARQ/FAX" led now blinks
and indicates that someone spoke one or more messages onto it. So it
seems to be in auto answer mode, though the S0 register is "000".

But, this, in my understanding, means, that the modem must not answer
any call, neither fax nor voice. But instead it does.

B.t.w., I already tried to run USR "phone tools" in Wine under
Mandriva Linux, but the relevant functions lead to errors like "not
enough memory".

Is there an additional register to set or clear to prevent or anable
auto answer mode?

Best regards,

Markus

If you can't prevent the modem from answering the phone using software
means, then you could remove its 1uF or 0.47uF 250VAC ringer
capacitor. This will prevent the ring signal from being detected.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.
 
Michael R N Dolbear...
Posted: Tue Jan 27, 2009 3:58 am
Guest
Markus R. Keßler <dimke.fax at (no spam) uni.de> wrote

Quote:
"Message mode" off via "at +mcs=0", i.e, "message control switch" is
off, but, after the next "atz" and switch off and on again it will be

"1". So, whenever KPPP makes a dial up internet connection and
therefore resets the modem by sending "atz" the the next day when
powering on the machines the modem is in "answering machine" mode
again.

Can you stop KPPP sending "atz" to this modem ?

And/or arrange to initialise the modem in the mode you want when the
computer is powered on ?

--
Mike D
 
Markus R. Keßler...
Posted: Wed Jan 28, 2009 7:55 pm
Guest
Reed wrote:

Quote:
From the explanation of this model's "SelfMode", it would appear that
USR does not provide a means of disabling AutoAnswer as it defeats the
purpose of this model, ie, answer all incoming calls independent of an
attached PC.

Can you trade this model in for an older, "less-smart", faxmodem ??

I got this via ebay for one or two euro - to trade this for a different one is not this important now ;-)

Btw, I already ordered a pure "fax modem" without any "message" gimmicks. Let's see, how this one behaves. I'll keep you informed.

Best regards,

Markus

--
Please reply to group only.
For private email please use http://www.dipl-ing-kessler.de/email.htm
 
Markus R. Keßler...
Posted: Wed Jan 28, 2009 8:00 pm
Guest
Michael R N Dolbear wrote:

Quote:
Markus R. Keßler <dimke.fax at (no spam) uni.de> wrote

"Message mode" off via "at +mcs=0", i.e, "message control switch" is
off, but, after the next "atz" and switch off and on again it will be
"1". So, whenever KPPP makes a dial up internet connection and
therefore resets the modem by sending "atz" the the next day when
powering on the machines the modem is in "answering machine" mode
again.

Can you stop KPPP sending "atz" to this modem ?

Yes, that's possible, but it's not the preferred solution. I's like to have a clear solution when starting.

In the meantime there was a different hint how to prevent the modem from taking the line automatically. I'll try to deactivate the "message" functionality next.

Best regards,

Markus

--
Please reply to group only.
For private email please use http://www.dipl-ing-kessler.de/email.htm
 
Markus R. Keßler...
Posted: Thu Jan 29, 2009 12:39 am
Guest
Franc Zabkar wrote:

Quote:
If you can't prevent the modem from answering the phone using software
means, then you could remove its 1uF or 0.47uF 250VAC ringer
capacitor. This will prevent the ring signal from being detected.

Mmm, yes... But let this be the "ultima ratio" solution, the last possible means if all other fails ;-)

Thanks,
best regards,

Markus

--
Please reply to group only.
For private email please use http://www.dipl-ing-kessler.de/email.htm
 
Moe Trin...
Posted: Thu Jan 29, 2009 7:16 am
Guest
On Wed, 28 Jan 2009, in the Usenet newsgroup comp.dcom.modems, in article
<4980a82f$0$30234$9b4e6d93 at (no spam) newsspool1.arcor-online.net>,
Markus =??B?Ui4gS2XDn2xlcg==?= wrote:

Quote:
Moe Trin wrote:

Yes, there are. But I cannot see any *working nntp server that
provides *http access, that is *read _and_ write, that has the *needed
groups. Maybe such servers exist, but it's hard to find them.

Depends on what you mean by "needed" groups. Have a look at that
www.dmoz.org page. If you're looking for 'text' newsgroups, "all"
news servers should carry the 2291 official "Big Eight" groups listed
monthly in a posting to news.announce.newgroups, news.groups, and
news.lists.misc on the 15th of each month - title "List of Big Eight
Newsgroups". Beyond that, many public news servers carry 20-100
thousand groups. The "free" ones tend to not carry the binary
groups because of bandwidth problems.

Quote:
Inquire why port 119 is being blocked. Some entities block it
because of abuse, and get unhappy if the firewall is bypassed.

Some companies try to "intercept" their employess and this is easily
achieved by forcing any network traffic through only one proxy.

Their computers - their rules.

Quote:
Thanks alot - well, after that the modem was permanently in
"non-message" mode, i.e. it did not answer calls automatically,
neither when the workstation is running or not.

You can always restore message mode by using the 'AT&F0' init string
instead of 'ATZ'.

Quote:
But, then kppp (the internet dialup deamon in Mandr* Linux) couldn't
make a proper connection any more...

What error message?

Quote:
The log is as follows:

/* ---------------------------------------------------------------- */

# Creatix / Netsurf:
[...]
CONNECT 115200/REL
# This my older modem. It's just 33k6, but it still works.

OK - the modems have established a connection. That says nothing about
whether a ppp connection was established.

Quote:
/* ---------------------------------------------------------------- */

# USR / Netsurf:
ATZ
OK
ATM0L0
OK
ATDT0191122
CONNECT 46666/ARQ

The modems say they've established a V.90 or V.92 connection with v.42
error corrections - that fine.

Quote:
# Connection timeout. No internet connection possible any more.
# I've no clue, why this happens.

The modems are establishing a connection, but kppp apparently doesn't
want to tell you anything - one reason I don't like those tools.

Add the pppd options 'debug dump' to kppp. Make a _copy_ of the file
/etc/syslog.conf for safe keeping, and edit the original to add the
line at the end of the file

daemon.=debug;local2.=info /var/log/ppp.debug

(that's a tab, not a bunch of spaces). Use the 'diff' command to
verify that the only change to that file is the addition

diff /etc/syslog.conf .etc/syslog.conf.original

The output of the 'diff' command should be something like

14a15
Quote:
daemon.=debug;local2.=info /var/log/ppp.debug

If diff shows anything else changed (some editors will ``help'' you by
line wrapping - that's a no-no), copy the original file back over the
changed one, and try again. Once this line has been safely added,
restart the system logging daemon with

killall -HUP sysklogd

and then place the call. This change will cause pppd (the daemon
kppp is ``helping'' to run) to show all the debug messages. Post that
log. You can then put the "original" /etc/syslog.conf file back,
and again restart the logging daemon.

Quote:
That causes trouble with kppp. It waits for certain messages which
either do not come or they come twice...

Details ? ppp is a _relatively_ simple program to set up.

Assuming /etc/ppp/*ap-secrets has the correct username and password,
and /etc/ppp/options is either empty or you can TEMPORARILY move it
out of the way,

/usr/sbin/pppd connect '/usr/sbin/chat -v "" ATZ OK ATDT0191122
CONNECT /d/c ' /dev/ttyS1 115200 debug nodetach crtscts modem
defaultroute user dimke.fax at (no spam) uni.de

That's all one line - replace the username with the correct value the
ISP is expecting (and that matches the entry in /etc/ppp/*ap-secrets).
When you run this command as root, it should dial the modem, and
connect to the ISP. Note that this does NOT change the nameserver
data in /etc/resolv.conf, so you have to make sure that is correct
manually. This command will also stay running in the terminal you ran
it from until you press the left Ctrl and 'c' key at the same time in
that terminal - which brings down the ppp connection. (Comment: 161
characters/bytes plus the size of /usr/sbin/chat - about 16 kbytes
total - it's a bit smaller than kppp.)

Old guy
 
Markus R. Keßler...
Posted: Fri Jan 30, 2009 3:32 am
Guest
Moe Trin wrote:

Quote:
Thanks alot - well, after that the modem was permanently in
"non-message" mode, i.e. it did not answer calls automatically,
neither when the workstation is running or not.

You can always restore message mode by using the 'AT&F0' init string
instead of 'ATZ'.

That's what I did now. So in the meantime the modem works again and I found out how to use it in 56k mode with "MessagePlus" mode on, but reception of faxes aswell as voice mails off:

/* ---------------------------------------------------------------------- */

at&f0 // Factory defaults
OK
at+mcs=1 // The modem loves to be in message mode? OK Smile
OK
// ate1 // After the above command there's no echo any more!?
OK
at+mcf=0 // Do not receive faxes
OK
at+mcv=0 // Do not answer and store voice messages
OK
at&w0 // Create new "atz" default falue

/* ---------------------------------------------------------------------- */

So kppp can use "atz" and nothing has to be changed significantly there.

One thing is puzzling me, though:

Both, Creatix and USRobotics modems only work in 9k6 mode when setting the maximum speed to 460800 Bit/s.
V.90 mode is only possible when setting the maximum speed to 115200.

Any idea what's behind?

Quote:
Add the pppd options 'debug dump' to kppp. Make a _copy_ of the file
/etc/syslog.conf for safe keeping, and edit the original to add the
line at the end of the file
killall -HUP sysklogd

Good to know. I'll try this for debugging next time kppp or some modem makes trouble :-)

Many thanks again!
Best regards,

Markus

--
Please reply to group only.
For private email please use http://www.dipl-ing-kessler.de/email.htm
 
Moe Trin...
Posted: Fri Jan 30, 2009 7:16 am
Guest
On Thu, 29 Jan 2009, in the Usenet newsgroup comp.dcom.modems, in article
<49822082$0$32671$9b4e6d93 at (no spam) newsspool2.arcor-online.net>,
Markus =??B?Ui4gS2XDn2xlcg==?= wrote:

Quote:
Moe Trin wrote:

You can always restore message mode by using the 'AT&F0' init string
instead of 'ATZ'.

That's what I did now. So in the meantime the modem works again and I
found out how to use it in 56k mode with "MessagePlus" mode on, but
reception of faxes aswell as voice mails off:

Glad to hear it!

Quote:
One thing is puzzling me, though:

Both, Creatix and USRobotics modems only work in 9k6 mode when setting
the maximum speed to 460800 Bit/s. V.90 mode is only possible when
setting the maximum speed to 115200.

Any idea what's behind?

Yeah - you're getting greedy Wink The hardware on your system isn't
able to run at 460800 - probably not at 230400 either. The UART chip
such as the NS16550A (original design from National Semiconductor) and
clones, including most modern "Southbridge" chips on the motherboard
can only accept up to 115200 BPS. There are two later designs, based
on the NS16650 and NS16750 that can handle the two higher speeds, but
few motherboards used them - mainly because the classic RS-232 serial
interface was considered slow and obsolete - the standard was
originally published in 1969. Consequently, work on the interface has
pretty well ended. Unfortunately, the replacement - the USB interface
- isn't as standardized.

What is happening is that when you specify a speed that the port is not
capable of, the "command" is ignored, and the serial port remains in
the existing speed - the default being 9600 BPS.

Quote:
Add the pppd options 'debug dump' to kppp. Make a _copy_ of the
file /etc/syslog.conf for safe keeping, and edit the original to
add the line at the end of the file

killall -HUP sysklogd

Good to know. I'll try this for debugging next time kppp or some modem
makes trouble Smile

You'd also have more luck posting to a Linux specific newsgroup - one
that is active. 'comp.dcom.modems' is pretty dead now - I'm showing
this as the 31th post so far this year, and there were only 222 posts
during all of last year, and 590 in 2007. 'ppp' in Linux is normally
discussed in the newsgroup 'comp.os.linux.networking' which has ten
times the activity, and several individuals beside myself who answer
ppp questions. There is also a 'comp.protocols.ppp' newsgroup that
one of the ppp authors often scans, although the group is even more
dead that this one.

Old guy
 
 
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