DComTalk.com

DaveJ · Guest

Hi,

I have a problem with my new 3025c modem. I have just installed it and
tried to use it with my voice mail software (IVM).

The problem is that when the modem goes into answer mode and AT+VLS=1
is sent to the modem. The following error (see >>>>> below) is returned
by the modem - actually the same that you originally reported on the
newsgroup.

09-04-2005 17:41:49.078 - Recv: <cr><lf>OK<cr><lf>
09-04-2005 17:41:49.078 - Interpreted response: OK
09-04-2005 17:41:49.097 - Send: ATS0=0<cr>
09-04-2005 17:41:49.097 - Recv: <cr><lf>OK<cr><lf>
09-04-2005 17:41:49.097 - Interpreted response: OK
09-04-2005 17:42:12.301 - Recv: <cr><lf>TYPE =
09-04-2005 17:42:12.301 - Interpreted response: NAME
09-04-2005 17:42:12.301 - Recv: 01<cr><lf>
09-04-2005 17:42:12.301 - Recv: DATE =
09-04-2005 17:42:12.301 - Interpreted response: DATE
09-04-2005 17:42:12.301 - Recv: 0904<cr><lf>
09-04-2005 17:42:12.301 - Recv: TIME =
09-04-2005 17:42:12.301 - Interpreted response: TIME
09-04-2005 17:42:12.320 - Recv: 1743<cr><lf>
09-04-2005 17:42:12.320 - Recv: NMBR =
09-04-2005 17:42:12.320 - Interpreted response: NMBR
09-04-2005 17:42:12.320 - Recv: 1111111111111<cr><lf>
09-04-2005 17:42:14.606 - Recv: <cr><lf>RING<cr><lf>
09-04-2005 17:42:14.606 - Interpreted response: Ring
09-04-2005 17:42:18.499 - Recv: <cr><lf>RING<cr><lf>
09-04-2005 17:42:18.499 - Interpreted response: Ring
09-04-2005 17:42:22.217 - Recv: <cr><lf>RING<cr><lf>
09-04-2005 17:42:22.217 - Interpreted response: Ring
09-04-2005 17:42:22.217 - Answering the call.
09-04-2005 17:42:22.217 - 115200,8,N,1, ctsfl=1, rtsctl=2
09-04-2005 17:42:22.237 - Send: at+fclass=8<cr>
09-04-2005 17:42:22.237 - Recv: <cr><lf>OK<cr><lf>
09-04-2005 17:42:22.237 - Interpreted response: OK
09-04-2005 17:42:22.256 - Send: at+vtd=10<cr>
09-04-2005 17:42:22.256 - Recv: <cr><lf>OK<cr><lf>
09-04-2005 17:42:22.256 - Interpreted response: OK
09-04-2005 17:42:22.276 - Send: at+vsm=130,8000,0,0<cr>
09-04-2005 17:42:22.276 - Recv: <cr><lf>OK<cr><lf>
09-04-2005 17:42:22.276 - Interpreted response: OK
09-04-2005 17:42:22.295 - Send: at+vit=6<cr>
09-04-2005 17:42:22.295 - Recv: <cr><lf>OK<cr><lf>
09-04-2005 17:42:22.295 - Interpreted response: OK
09-04-2005 17:42:22.314 - Send: at+vls=1<cr>

Matthias Moetje · Guest

Dave,

the only valid conclusion is that the inf file does not match the
modems AT command set. Can you get a list of supported
AT commands from the manufacturer (or maybe it's included
in the manual or on the CD)?

Then you could compare the inf file commands and responses
to the AT commands and perhaps modify some of the commands.

Best regards,

Matthias Moetje
-------------------------------------
TERASENS GmbH
Ackermannstraße 3
80797 München
-------------------------------------
Fon: +49 89 143370-0
Fax: +49 89 143370-22
e-mail: moetje at terasens dot de
www: www.terasens.de
-------------------------------------

"DaveJ" <dj.google@jayedee.com> wrote in message
news:1125998337.450334.104230@g43g2000cwa.googlegroups.com...

DaveJ · Guest

The INF file is the one supplied with the modem.

If I use hyperterminal to check what options are supported by AT+VLS
(i.e. AT+VLS?) then the response includes the options 0,1,5.

This seems to be some obsure problem.

Dave J

Matthias Moetje · Guest

Dave,

Franc Zabkar · Guest

On 6 Sep 2005 02:18:57 -0700, "DaveJ" <dj.google@jayedee.com> put
finger to keyboard and composed:

Franc Zabkar · Guest

On 6 Sep 2005 06:30:58 -0700, "DaveJ" <dj.google@jayedee.com> put
finger to keyboard and composed:

Franc Zabkar · Guest

On Wed, 07 Sep 2005 11:12:26 +1000, Franc Zabkar
<fzabkar@iinternode.on.net> put finger to keyboard and composed:

DaveJ · Guest

Hi Franc,

You are correct, the VIT (Voice Inactivity Timer) is the timeout for no
activity on the modem line (voice data in my case).

I'll check to see if VCON is in the response section tonight when I get
home.

I have a phone connected to the phone socket, however, I've tried
unplugging it and I've even tried connecting the incoming phone line to
the 'phone out' socket at the back of the card, but all to no avail.

Dave J

DaveJ · Guest

Franc Zabkar · Guest

On 7 Sep 2005 03:50:15 -0700, "DaveJ" <dj.google@jayedee.com> put
finger to keyboard and composed:

DaveJ · Guest

Hi Franc,

I don't think it's a problem with my line/connection/modem hardware.

When an AT+VLS=1 is issued, the modem does actually go off hook (the
line is connected). All phones in my house stop ringing.

However, as you can see from the modem log, the +VLS=1 does not return
until 6 seconds later, with an ERROR.

The +VIT (Voice Inactivity Timeout so happens to be set to 6 seconds,
and if altered does NOT affect the 6 second timeout of the +VLS
command).

I can only think that I have an obscure problem with the combination of
WinXP/TAPI version that I am running with (5.1.2600 on WinXP and
5.0.2195 on Win2K that I have also tried), the soundcard (onboard
Realtek AC'97 on my WinXP, VIA Realtek AC'97 on my Win2K) that I have
and/or the modem.

According to other people, they have successfully had the same modem
working with Win98, Win2K, WinXP.

I think the only course of action open to me now is:
1) Give up!!!
2) Try on Win98 (although my actual machine that would normally run
my software is a Win2K machine) - I have a decomissioned Win98 machine
that has a Soundblaster 64 card in it
3) Rebuild a Win2K, WinXP machine and try that (someone has reported
this before and claimed that the re-install of his Win2K sorted it out,
but then after installing SQLServer the same problem came back - so
another re-install again sorted it out - crap eh?)
4) Try a 'off-board' PCI soundcard to rule out any problems with the
onboard cards

Any more ideas would be welcome...

I would really like to stick with the modem, since it has good press
and I have proved that it does actually support UK caller id. The only
problem with it is the reported slow DTMF response (though I have not
got that far to see if it is correct).

Anyway thanks for sticking with this and giving me some good feedback.

Regards,

Dave J

Matthias Moetje · Guest

Dave,

as I stated earlier there may be an error in the inf file.

Did you use an inf file provided by the manufacturer or
by Windows? Are there different inf files available for
your modem?

You may try to modify an inf file to create your own:
Copy the inf file, open it, edit the modem name (e.g.
an X to the end of the name, to be able to distinguish)

Then you can try to experiment with different values for
AT+VSM. I would try 1,128 and 129.
I don't think that any of the other values can
be wrong: fclass=8: select voice mode, vtd: DTMF tone
duration, vit: voice inactivity timer, vls=1 go off-hook,
audio source/destination from/to line.

You may also want to try this scenario by hand with
Hyperterminal.

I don't think that a change of computer/soundcard would
help. Also, in this case I don't think that the interface with the
modem could be a problem, because no data is supposed to
be transfered at this time.

Best regards,

Matthias Moetje
-------------------------------------
TERASENS GmbH
Ackermannstraße 3
80797 München
-------------------------------------
Fon: +49 89 143370-0
Fax: +49 89 143370-22
e-mail: moetje at terasens dot de
www: www.terasens.de
-------------------------------------

"DaveJ" <dj.google@jayedee.com> wrote in message
news:1126432288.090346.266730@o13g2000cwo.googlegroups.com...

DaveJ · Guest

Hi Matthias,

I don't think there is a problem with my INF file. I have used the one
that came with the

modem and have altered it to fix a problem recogising UK BT caller ids.

Other people have had the same modem working under Win2K and WinXP, I
have even sourced and

tried the modem driver (including INF file) from someone that has had
it working. The INF

file was exactly the same as the one I am using. The driver was
slightly older, but this did

not work either - I encountered the exact same problem.

I have tried all valid options for +VSM:
1,8000,0,0
128,8000,0,0
129,8000,0,0
130,8000,0,0
131,8000,0,0
132,8000,0,0
133,8000,0,0
All gave the exact same error.

As you suggested, I then used hyperterminal to try out the command
sequence on voice answer as defined in the INF file:
at+fclass=8
at+vtd=10
at+vsm=130,8000,0,0
at+vit=0
at+vls=1

I opened hyperterminal, and created a new connection using the zoom
modem.
After entering all the above commands (up until at+vit), all returned
'OK' as expected.
Then after entering at+vls=1, the line was connected and 'OK' was
returned. This was the point that I normally discovered that 'ERROR'
was being returned.

So what could the problem be? as using hyperterminal seemed to work
fine.

Regards,

Dave J

Matthias Moetje · Guest

Dave,

this seems to be a very weird problem. The modem log
file at this point is not of any help here. But it is good that
you can get it to work with HyperTerminal.

Now we should find out the difference between the HyperTerminal
sesstion and the Unimodem TSP. For this you should obtain
a serial or USB port monitor (there are several available, you
can try http://www.hhdsoftware.com).
Reproduce the session with HyperTeminal and with Unimodem.
Then compare the traces to find the differences.

Best regards,

Matthias Moetje
-------------------------------------
TERASENS GmbH
Ackermannstraße 3
80797 München
-------------------------------------
Fon: +49 89 143370-0
Fax: +49 89 143370-22
e-mail: moetje at terasens dot de
www: www.terasens.de
-------------------------------------

"DaveJ" <dj.google@jayedee.com> wrote in message
news:1126465111.739347.6670@o13g2000cwo.googlegroups.com...

DaveJ · Guest

Hi Matthias,

That sounds like a plan!

Thanks again.

Regards

Dave J

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