HDTenEightyP/NetNews huggingface dataset:
From: nicos@csa.bu.edu (Nicos Kontopoulos)
Newsgroups: comp.dcom.modems,comp.sys.mac.comm
Subject: Zmodem vs Kermit on a Macintosh
Date: 16 Apr 92 19:13:56 GMT
Reply-To: nicos@cs.bu.edu (Nicos Kontopoulos)
Followup-To: comp.dcom.modems
Organization: Computer Science Department, Boston University, Boston, MA, USA

My setup:
   I am using a Mac SE with an old 2400 baud modem.

   I am transferring files between the Mac and a Unix machine.

   On the Mac I am using C-Kermit (last beta version) or ZTerm 0.9 Zmodem.
   On the Unix machine we have "C-Kermit, 4E(072) 24 Jan 89, SUNOS 4.x"
                           and "sz 1.43 02-21-88 for V7/BSD by Chuck Forsberg"
  
   With kermit I use a packet length of 796.
   With zmodem I use "sz -w 512" because nothing else will work.

The problem:
   Both software operate on the average case at >80%, with Kermit being
   faster in all transfers (binary, text, various sizes).
   Faster by a few seconds in most cases; Faster by a lot in some
   text transfers.

The question:
   I was under the impression that zmodem would be much faster than
   Kermit. Is the zmodem version on the Unix machine too old, or what?
   Why can't I use a bigger window size (sz -w) than 512 with zmodem?
   Any help on zmodem appreciated, as I am new to it...

Note #1:
   BTW, zmodem gives me a value of cps being transferred and what this
   value is as a percentage of maximum efficiency. It gives me around
   200cps and >80% This means that 100% is 240cps
   So 240 characters per second (cps) is the maximum for a 2400 baud
   modem. "baud" is the same as bps (bits per second) I thought...
   So, what is the deal (10 bits per byte? What exactly is "baud" ?

Note #2:
   I transferred a text line to/from the Unix machine to my Mac using
   the kermit described above. This file consists of 150 identical
   lines, each containing 79 occurrences of the same character and one
   newline character (this adds up to 12000 bytes). It took 6 and 8 seconds
   respectively at 2400 baud! According to Kermit, this is an effective baud
   rate of 20000 (or 15000), or according to my calculations 2000cps
   (or 1500cps). So, what kind of compression is involved? The transfer
   used 6 packets in each of the transfers.


Thanks, 



--
-------------------------------------------------------------------------
   Nicos Kontopoulos                             Voice: (617) 787-1780
   INTERnet: nicos@cs.bu.edu                    BITnet: ecolpqc@buacca
-------------------------------------------------------------------------
From: Jeff.Lindstrom@ofa123.fidonet.org (Jeff Lindstrom)
Newsgroups: comp.dcom.modems
Subject: Re: Modem an Telekom-Nebenstellenanlage?
Date: Tue, 07 Apr 92 12:35:46 PDT
Organization: Universal Electronics Inc. (Public access BBS)

> English, IMHO, isn't a very defensible language.

  English is the international technical language.



--  

Jeff Lindstrom
Internet: Jeff.Lindstrom@ofa123.fidonet.org
Compuserve: >internet:Jeff.Lindstrom@ofa123.fidonet.org
Newsgroups: comp.dcom.modems
From: sknkwrks@unlv.edu (Scott Alfter)
Subject: Re: Supra v32bis speeds?
Organization: Skunk Works Software Co.
Date: Mon, 13 Apr 92 09:44:45 GMT

In article <12516@umd5.umd.edu> adhir@cygnus.umd.edu (Alok Dhir) writes:
>I just bought a Supra v32bis FAXmodem...I was just wondering what kind of
>speeds you people are seeing from this thing.  With my USRobotics Courier
>HST (non v42bis) I used to see about 1650cps...
>
>With this Supra modem, the most I've gotten is about 1450cps connected to
>a 32bis USR Dual Standard.  When I connect to the maiframe at work which
>has a v.32 (not bis) v.42bis modem, I get about 1100 cps.  Is this normal?
>Or am I doing something wrong?

Sounds like your init string needs some tweaking.  When connected to
USR Courier v.32bis or HST Dual Standard modems, I can get 1600 cps out of
ZMODEM, 1650 out of YMODEM-G.  (Haven't tried calling other brands of
modems yet.)

I used to have the init string floating around on paper...you should
also be able to find it in this newsgroup if you look back a few days.

  _/_   Scott Alfter                             Internet: sknkwrks@cs.unlv.edu
 / v \  Call the Skunk Works BBS today!         Fidonet: 1:209/765 or 1:209/211
(IIe (  (702) 896-2676 v.32bis Apple II/IBM                     GEnie: S.ALFTER
 \_^_/  Ask me about SoftDAC--digital audio for your IIe/IIc! Apple II Forever!
From: larry@news.rn.com (Larry Snyder)
Newsgroups: comp.dcom.modems
Subject: Re: HAYES SMARTMDM 9600 V-SRS
Date: 8 Apr 92 12:45:34 GMT
Organization: Feeds-R-Us

mark.savey@cccbbs.UUCP (Mark Savey)  writes:

>   I just got a Hayes 9600 Smartmodem (V-series).  I am really not sure
>if this modem is as good as we thought that it was...apparently this
>modem is NOT v.32, only v.42.  I tried using 38400, but the modem would

correct  -- we set ours at 19200 since 38400 didn't work correctly

basically, we use it as a 2400 baud MNP5 modem with v.42bis and offer
users the availability to dial in from another Hayes V-Series 9600
modem using V.42 with v.42bis as a service --- it's a damn good 2400 
baud modem (but quite expensive as such)

If you are interested in selling it -- let me know -- we've bought
a couple of them for $150 from other folks on the net if the firmware
is current and you have all original packaging.  We like to use these
as our primary inbound low speed modems on the terminal server

-- 
 =*= Larry Snyder, Public Access Unix Site - 219-289-0777 - 10 lines =*=
      internet: larry@gator.rn.com        uucp: uunet!trauma!larry
From: josephr@crux.homecare.com (Joseph Rukendorfer)
Newsgroups: comp.dcom.modems
Subject: BOCA V.32BIS 14.4K internal modem
Date: 11 Apr 92 22:03:46 GMT
Organization: Midnix - Mid-South Unix Users

Altex Electronics advertises the BOCA Fax/modem for $269.
It has the Rockwell chip set, which probably means that the UART is
16450. Warranty is 5 years.

Anybody already using the board? I would like to compare notes, as I am
presently testing DALLAS fax/modem V.32bis/V.42bis ($328). The price 
differential warrants a comparison.
Is there a vendor who sells the BOCA  at a lower price?
From: Lyle_Seaman@transarc.com
Newsgroups: comp.dcom.modems
Subject: Re: Supra V.32bis FAXmodem
Date: 6 Apr 92 15:42:02 GMT
Organization: Mail to News Gateway

irving@eskimo.celestial.com (Larry Gilbert) writes:
> A recent Supra advertisement for this modem lists "Class 1 and 2 commands,
> and compatibility with the millions of Group 3 fax machines in use" among
> the modem's features.  To me, this says "Our modem only does Group 2 fax."
> But perhaps I'm wrong.  Perhaps (though this is a slightly silly thought)
> the Canon machine is not a Group 3 fax machine, and thus is incompatible.

"Class 1 and 2 commands" refer to the interface between the modem and
your computer.

"Group 3" refers to the protocol in use between two fax machines
(which includes modems, of course) and is virtually the only fax
protocol used at this time.
Newsgroups: comp.dcom.modems
From: ab245@cleveland.Freenet.Edu (Sam Latonia)
Subject: Re: Supra BUSY signaling problem.
Organization: Case Western Reserve University, Cleveland, Ohio, (USA)
Date: Fri, 10 Apr 92 06:41:17 GMT


It seems that this busy signal problem is not just with the Supra modems.
Six months a go when I bought my (6) Okidata Okitel 9600 modems there
were people that were having some kind a problem connecting to I don't
remember where just now. But it all turned out to be a problem with
the time of the (s) signal. At that time I was talking to Okidata about
something that was going to be fixed in the filtering of the line noise.
Well at that time I was told that they were working on the (S) signal
fix to be sent out as an update chip, but were having a problem that
to fix the (s) signal problem. That it had coused a NEW problem in the
busy detection, as I now see people reporting that they are having with
their new Supra modems. At that time Okidata said that they to could
overcome this problem by a command line entry that as the Supra could
fix the problem, but then screwed up the detection of the busy signal.
Now this week I talked to them as I had not as yet seen their updates
in the mail and was told that all of the (S) signal and the busy signal
problems were worked out in the chip upgrade. Okay they came in today
and I now have a case of 6 sets of new upgrade chips that acording to
what I was told should fix both the (S) signal as well as the busy
problems, that myself have never experienced at all. And these upgrades
say nothing about having to ad anything to the modem strings to overcome
the busy signal problem. So with a bit of hope for you people with the
Supra modems. The guys at Supra to may find de the fiv that the Cordex
people did for the Okidata modems. Good luck...
-- 
       THE FIRESIDE BBS 884-9728
WHERE THE PARTICULAR PEOPLE COMMUNICATE!
From: rick@nugget.rmNUG.ORG.mu.edu
Newsgroups: comp.dcom.modems
Subject: Re: Supra V.32bis FAXmodem
Date: 9 Apr 92 06:00:45 GMT
Article-I.D.: nugget.1992Apr9.060045.3831
Organization: Rocky Mountain NeXT Users' Group

In article <1992Apr08.213705.25651@gozer.mv.com> klm@gozer.mv.com (Kevin L.  
McBride) writes:
> gsnow@clark.edu (Gary Snow) writes:
> 
> > >I'm not familiar with the Class 1/Class 2 type modems, but I could
> > >conceive of a fax-getty program run instead of getty which would take
> > >the answer result-code from the modem and either exec a fax receive
> > >program or /bin/login depending on the connect type.  Wouldn't this be
> > >possible, or is there something in the design of the class 1/2 command
> > >set that would prevent this?
> 
> > Hmmmm, that certainly sounds feasible, and worth a try, but I wouldn't
> > purchase a FAX modem just to find out.  If anybody out there has tried
> > this please speak up.
> 
> This had better be possible, otherwise it almost completely defeats
> the purpose of putting a V.32bis/FAX modem on a UNIX machine.
> 
> I don't have access to documentation for the Class 1/2 command set and
> I also don't (yet) have such a modem.  I will, however, be getting the
> modem soon.  If someone can provide the necessary documentation
> (result codes?)  I'll hack netfax to make it work.  I don't feel like
> giving up one of my UUCP/modem phone lines just so I can receive
> FAXes. Knowhatimeanvern?
> 
> -- 
> Kevin

We are working on this very thing in connection with our Fax-ModemDriver system  
for the NeXT....

  Rick Jacoby
  rick@tssnext.rmnug.org
From: traub@rtf.bt.co.uk (Michael Traub)
Newsgroups: comp.dcom.modems
Subject: Re: Telebit Loyalty pays
Date: 13 Apr 92 08:27:19 GMT
Organization: BT Customer Systems, Brighton, UK

In article <5ee5iB2w164w@zswamp.UUCP> geoff@zswamp.UUCP (Geoffrey Welsh) writes:
>traub@rtf.bt.co.uk (Michael Traub) writes:
>
>> And if you aren't an American you can't possibly be loyal so you will
>> have to pay up as well.
>
>   For that you should blame your country's telco regulators...
>

Wrong. What makes you think you know anything about UK law?


-- 
Michael Traub
BT Customer Systems, Brighton Systems Centre. traub@rtf.bt.co.uk
From: tnixon@hayes.com
Newsgroups: comp.dcom.modems
Subject: Re: Where is the Hayes AT command set list?
Date: 6 Apr 92 18:16:17 GMT
Organization: Hayes Microcomputer Products, Norcross, GA

In article <29dc98d6.dodeca@dodeca.UUCP>, clyde@dodeca.UUCP writes:

> Subject: Where is the Hayes AT command set list?
> Sorry if it's a FAQ, but I need to know.

Do you want the _Hayes_ version of it?  Surely to understand that 
virtually every manufacturer has their differences (some major, some 
minor)?  

Hayes has a plain-text version of the Technical Reference for Hayes 
Modem Users, which is kept on the Online with Hayes Forum on 
CompuServe (GO HAYFORUM), the Hayes Roundtable on Genie, and the 
Online with Hayes BBS (800-874-2937, 404-446-6336).  Sorry, no 
anonymous FTP.  You can also buy a paper copy of it through Hayes 
Customer Service at 404-441-1617.

-- 
Toby Nixon, Principal Engineer      | Voice   +1-404-840-9200  Telex 151243420
Hayes Microcomputer Products, Inc.  | Fax     +1-404-447-0178  CIS   70271,404
P.O. Box 105203                     | BBS     +1-404-446-6336  AT&T    !tnixon
Atlanta, Georgia  30348             | UUCP uunet!hayes!tnixon  Fido   1:114/15
USA                                 | Internet                tnixon@hayes.com
From: wolfgang@wsrcc.com (Wolfgang S. Rupprecht)
Newsgroups: comp.dcom.modems
Subject: Re: "tip" mystery for Telebit Modem
Date: 11 Apr 92 00:50:58 GMT
Distribution: na
Organization: W S Rupprecht Computer Consulting, Fremont CA

datri@convex.com (Anthony A. Datri) writes:
>This is your modem rebelling against the clumsy anachronism that is tip.
>Use kermit.

For us novices, can you tell us how to install kermit such that it
won't open up any security holes?  Ls -lag listings of the tty dialout
line, lock file directory and of kermit itself would be useful.

-wolfgang
-- 
Wolfgang Rupprecht    wolfgang@wsrcc.com (or) wsrcc!wolfgang
Snail Mail:           39469 Gallaudet Drive, Fremont, CA 94538-4511
Newsgroups: comp.dcom.modems
From: kevin@kestrel.edu (Kevin Ow-Wing)
Subject: Re: Compressed files and v.32bis
Organization: Kestrel Institute, Palo Alto, CA
Date: Fri, 17 Apr 1992 02:24:56 GMT

In article <1BnFGBj010n@arc.terminal.nicedel> kai@nicedel.north.de (Kai Schlichting) writes:
>SLENDT@athena.unomaha.edu (STEVE LENDT - C&DC NETWORK ) writes:
>
>> 
>>    A lot of the files that get transmitted over modems have been
>> compressed (zip, arc, etc).  What kind of effect does this have
>> on transfer times over a pair of v.32bis modems?  I've been told
>> that if you transfer an lharc compressed file using Zmodem or
>> simple binary Kermit that the transfer times will be close.
>> Is this true?  I would think there would be more to it than that.
>> 
>Hmm....v32bis has really nothing to do with error compression.
>v32bis will always go at the minimum of their primary baud rate
>(which is 14.4k/12k/7.2k , but there's no 9600 which is v32!).

V.32bis does include 9600 TCM and 4800 bps rates for backward compatibility
with V.32 modems.

Kevin


Xref: sparky comp.dcom.modems:6477 comp.sys.mac.comm:4551
From: wc7044@writer.yorku.ca (Joel Atkin)
Newsgroups: comp.dcom.modems,comp.sys.mac.comm
Subject: Re: Supra V.32bis (Disappointment)
Keywords: supra, v.32bis, v32bis, mac, macintosh
Date: 9 Apr 92 22:33:11 GMT
Organization: York University, Toronto, Canada


	Thanks for the info onthe difference between v.32/bis,
v.42/bis, and HST.  I'm certainly nolonger confused (I believe I
finally got the idea after about the 14th message in my mailox :)  ).

Joel
From: Jay.Ashworth@f160.n3603.z1.FIDONET.ORG (Jay Ashworth)
Newsgroups: comp.dcom.modems
Subject: Info Wanted: Dallas FAX 2496VC
Date: Sat, 11 Apr 92 22:26:00 EDT
Organization: FidoNet node 1:3603/160 - Hacker's Haven, Clearwater FL

As the subject line indicates, I'm looking for _informed_ input on the Dallas Fax 2496VC multi-purpose communications card.  This is the one with v.22bis/v.42/v.42bis/MNP5 data, G3 9600bps fax, Voice, and CNID decoding.

If you _have_ one of these modems, and can spare me some time to drop me netmail, I'd much appreciate it.  I'll summarize, etc...

I'm interested in hardware reliability, interoperability, software quality, quality of customer service, and all the other obvious stuff I should want to know.

If you've just _heard_ stories, well...  alt.folklore.{computers,urban} are down the hall, third (and fourth) doors on the right... :-)

Mail to jra%acorn@tct.com, please.

Cheers,
-- jra

--  
Internet: Jay.Ashworth@f160.n3603.z1.FIDONET.ORG
UUCP: ...!uunet!ndcc!tct!psycho!160!Jay.Ashworth
Note:psycho is a free gateway between Usenet & Fidonet. For info write to
     root@psycho.fidonet.org.
From: palm@admin.kth.se (Christer Palm)
Newsgroups: comp.dcom.modems
Subject: Re: FAQ?  HW Handshaking?  What the....
Date: 8 Apr 92 18:54:30 GMT
Article-I.D.: admin.1992Apr8.185430.20411
Organization: The Royal Institute Of Technology, Sweden

In article <1992Apr7.211334.1@vmsb.is.csupomona.edu> mpye@vmsb.is.csupomona.edu writes:
>Sorry if I'm a bit wet behind the ears...but I'd appreciate it if
>someone could answer a couple questions:
>
>What is a Hardware Handshaking cable?  I have a modem cable for my Mac.
>How would one know whether it's a HW Handshaker?  There are eight pins
>on the Mac side and 25 pins on the modem side.  I assume these have to 
>be mapped in a certain way.  Is this correct?  But it also seem that 
>with so few pins on the Mac side, there's just about only one way to
>map it to the modem side and have it still work.  Are some of the pins
>on the Mac side mapped to more than one pin on the modem side?  HELP!!!!

1. You don't need all 25 pins it's ok with 5 pins or less if you put in 
   jumpers. The 5 pins has to be pin 2 (TD), 3 (RD), 7 (Signal GND),
   8 (CD) and 20 (DTR) for the DB-25 plug. I can't tell the pin 
   configuration for the Mac plug.

2. To make Hardwere Hadshaking you need do add pin 4 and 5 (Request to 
   Send) and Clear To Send. 

/Christer



-- 
"Destiny makes relatives, selection makes friends."
From: jiang@cs.arizona.edu (Howard Jiang)
Newsgroups: comp.dcom.modems
Subject: Re: Supra V.32bis FAXmodem
Summary: Problems...
Date: 6 Apr 92 15:07:55 GMT
Organization: U of Arizona CS Dept, Tucson


In article <1992Apr5.200449.12533@eskimo.celestial.com>, irving@eskimo.celestial.com (Larry Gilbert) writes:
> A recent Supra advertisement for this modem lists "Class 1 and 2 commands,
> and compatibility with the millions of Group 3 fax machines in use" among
> the modem's features.  To me, this says "Our modem only does Group 2 fax."
> But perhaps I'm wrong.  Perhaps (though this is a slightly silly thought)
> the Canon machine is not a Group 3 fax machine, and thus is incompatible.

Huh? How does the ad say "Our modem only does Group 2 fax"? It says group 3
compatibility doesn't it?

> Maybe someone who owns one of these new puppies and has experience with fax
> communications can shed some light on all of this.  I'm interested in up-
> grading my own Supra 2400 external, but I'm waiting for further word on this
> and the busy signal detect problem.

I seem to recall that the busy undetected problem was unique to only those
modems that were "hacked" and had the same serial numbers. Kinda pays to be
one of those receiving one a few weeks later eh?

-HJ
From: Jeff.Lindstrom@ofa123.fidonet.org (Jeff Lindstrom)
Newsgroups: comp.dcom.modems
Subject: HELP! Zmodem/SupraFax
Date: Sat, 11 Apr 92 04:11:00 PDT
Organization: Universal Electronics Inc. (Public access BBS)

RH>Advice needed:  After upgrading to a SupraFax v.32bis modem, I am having
RH>problems with previously problem-free Zmodem transfers.

RH>My active profile is identical to the IBM/Amiga factory configuration (at&f2)
RH>provided in the modem memory except for atx2, atl, and atw1.  I am using
RH>the Zmodem implementation from JRComm.  Have tried toggling Overdrive mode,
RH>32/16 bit CRC, and the size of the "Window" all to no avail.  Any advice
RH>appreciated.

  Hhmmm... I am using an Amiga with a GVP 68030 accelerator and a Supra V.32bis FAXModem.  I have not been receiving the problems you have encountered.  I tried the &F2 configuration, but ended up just saving the presets and loading it in the Init string.  My most used configuration is:

ACTIVE PROFILE:                                                                
B0 E1 L1 M0 N1 Q0 T V1 W1 X4 Y0 &C1 &D2 &G0 &J0 &K3 &Q5 &R0 &S0 &T4 &X0 &Y0    
S00:000 S01:000 S02:043 S03:013 S04:010 S05:008 S06:002 S07:050 S08:002 S09:006
S10:014 S11:095 S12:050 S18:000 S25:005 S26:001 S36:007 S37:006 S38:020 S44:003
S46:138 S48:007 S49:008 S50:255

  My Init string is a simple ATZ0 (my Z1 configuration is for forced 1200 or 2400 connections to some modems).

  As you did not provide your configuration, I can only suggest that you compare what you've got, what I use, and your manual's descriptions.

___
     Amiga MailMan v0.9


--  

Jeff Lindstrom
Internet: Jeff.Lindstrom@ofa123.fidonet.org
Compuserve: >internet:Jeff.Lindstrom@ofa123.fidonet.org
From: wbe@bbn.com (Winston Edmond)
Newsgroups: comp.dcom.modems
Subject: Re: ZyXEL retrains
Date: 10 Apr 92 00:35:49
Organization: Bolt Beranek and Newman, Inc., Cambridge, MA
Distribution: world
NNTP-Posting-Host: crystal.bbn.com
In-reply-to: rlcarr@animato.uucp's message of 8 Apr 92 17:35:21 EST

rlcarr@animato.uucp (Rich Carreiro) asks:
> Does the ZyXEL U1496 series initiate and respond to both fall-forward
> retrains and fall-back retrains?

The following items from the manual should answer your question: 

QUALITY ACTION
 AT*Q0	No reponse to poor signal quality
   *Q1	(Auto Retrain) When poor signal quality is detected, automatically
	   retrain.
   *Q2	(Adaptive Rate) (Default) When poor signal quality is detected,
	   automatically fall-back to next lower speed.  When signal quality
	   is improved, automatically fall-forward to next higher speed.
   *Q3	(Disconnect) When poor signal quality is detected, modem disconnects.

ADAPTIVE BLOCK SIZE
   Depending on the line condition, the ZyXEL U-1496 series modem will
   automatically adjust the block size to minimize the error rate and
   re-transmission time.

Also, the link status report lets you see the counts of "Retrains Requested"
and "Retrains Granted" since the latest call began, and the current maximum
(error correction) block size.
 -WBE
From: gsnow@clark.edu (Gary Snow)
Newsgroups: comp.dcom.modems
Subject: Re: Supra V.32bis FAXmodem
Date: 8 Apr 92 15:21:46 GMT
Article-I.D.: clark.1992Apr8.152146.633
Organization: Clark College, Vancouver, Wa.  USA

In article <DVC.92Apr7144919@eagle.ATT.COM> dvc@eagle.hr.att.com (David Van Cleef) writes:
>>>>>> On 7 Apr 92 17:51:19 GMT, gsnow@clark.edu (Gary Snow) said:
>> In article <1992Apr6.233751.29706@unixg.ubc.ca> jeffrey@squid.tram.com writes:
>>>Can I run UUCP and incoming fax off the same modem?
>
>> No, these type of modems are not intended for BBS/Dial-Up Computer
>> Systems to send and receive FAXes, thats only something intended for a
>> Stand-alone computer system to do.  Thats not to say thought that you
>> couldn't run your FAX software in the background under unix and have the
>> Supra line as a FAX modem only line, and have other lines as regular
>> Dial-Up lines.
>
>I'm not familiar with the Class 1/Class 2 type modems, but I could
>conceive of a fax-getty program run instead of getty which would take
>the answer result-code from the modem and either exec a fax receive
>program or /bin/login depending on the connect type.  Wouldn't this be
>possible, or is there something in the design of the class 1/2 command
>set that would prevent this?

Hmmmm, that certainly sounds feasible, and worth a try, but I wouldn't
purchase a FAX modem just to find out.  If anybody out there has tried
this please speak up.

Gary

-- 
-----
Gary Snow
uunet!clark!gsnow  or  gsnow@clark.edu
Newsgroups: comp.dcom.modems
From: hu@helios.physics.utoronto.ca (Min Hu)
Subject: help needed in using faxmodem under win3
Organization: University of Toronto Physics/Astronomy/CITA
Date: Mon, 13 Apr 1992 01:17:14 GMT

      Recently I bought an Aceex9624 internal FaxModem. It works fine
under DOS.
      But under window3, it does not work for both terminal and doswindow.
Plus, if I use window first and then use modem, it does not work also.
I have to reboot(reset) the system again to make modem works. It seems
to me that the communication port for modem is disabled somehow by 
window. 
     I used com4 for my modem. Com1 is used by mouse. And I use bitcom
communication software. (By the way, I have tried com2, com3, they do
not work for me)
     Anybody out there, know how to solve this problem. Your help will
be greatly appreciated. Thank you. 

			MIN HU 
Newsgroups: comp.dcom.modems