Here's a pass at providing the details on how to get the SFX 400i to work
under OS/2 2.0 (no real changes for 2.1). Feel free to request clarification
if I leave something out. I know how frustrating it can be just starting.

(Steve Swanson  CIS ID: 72261,1114)

Installation:

My setup has the modem on COM 1/IRQ 4 and my mouse on COM 2/IRQ 3.  You need
to read thru the INTEL information to be sure you have all the IRQ's set
so that there is no conflict. OS/2 will complain. I had to disable my COM 3
because it used IRQ 4 (and I had no other available IRQs - remember, the
printer must have IRQ 7 so the SoundBlasterPro has to be reconfigured to
IRQ 5.....<g> gets complicated) After that, you just use the normal
precautions to insert the board.

Setup:

I don't recall anything remarkable about the setup. I've looked at my notes
and don't see anything. Follow the instructions INTEL provides. The software
is pretty straight forward. It does do some re-boot things so if you have
trouble running in a DVM you may be forced to boot a simple plain DOS session.
You can avoid the re-booting by typing "setup noreboot". One thing you need
to be careful of, is that the install will want to modify your autoexec.bat
and config.sys. You will have to remove or "rem out" these changes in your
OS/2 files. OS/2 satisfies the driver requirements differently. Everything
in the autoexec.bat is inherited by all DOS sessions - you may not NEED to
load the CASMGR each time you open a session. Any DOS device drivers in the
config.sys are automatically loaded for each DOS session - you don't need
to re-initialize the 400i each DOS session. SO, I'd let them be modified
(backup before starting!) then after reading the instructions here and
inspecting the two files, fix them. Worst case - copy the originals over
the changes then fix the specific program objects.

OS/2 setup:

The 400i needs to be initialized once upon booting. This sets up the hardware
for MODEM use. All comm programs can then work correctly without any additional
initialization or drivers in the settings/devices folder. FAX operations
require the further installation of the CASMGR. Do this ONLY for FAX specific
sessions. OK - here's how you do it!

Open the "OS/2 System" folder. Open the "Startup" folder that is in there.
Next, open the "Templets" folder. Drag (right mouse button = RMB) a copy of a
"Program templet" from "Templets" to the "Startup" folder. I think it opens
on up to let you fill in the information but if it doesn't, RMB the program
templet in the startup folder, choose OPEN, Settings. Fill in the settings as
follows:

          Program/Settings  - Path and file name = *

                            - Optional Parameters = /C  EXIT

          Session/Settings  - DOS Window,

                            - Start Minimized,
                            - Close on exit
                            - DOS Settings -

                                  DOS_DEVICE:  d:\fax\satisfax.sys IOADDR=0350
                                  (Use your own correct path and IOADDR)

          Window/Settings   - Min to viewer, Disp Existing.

          General/Settings  - Replace the program name "Program" with something
                              like SFX init....what ever suits you.

With this in place, the next time you boot, the 400i will be initialized and
all MODEM functions are available.

You will need to setup a specific FAX session. Same drill as above. RMB drag a
"Program Templet" to a folder you would like the FAX session to be in - suggest
DOS Programs. Get to the "Settings". The program name = d:\fax\fax.bat Working
Directory is d:\fax. Session/Settings = DOS Window, Close on Exit. Also reload
the 400i initialization in the DOS Settings, DOS_DEVICE d:\fax\satisfax.sys
IOADDR = 0350. FAX programs want the driver loaded specifically in the session
they reside in.

Place FAX.BAT in the appropriate directory - mine is:

 FAX.BAT
 =======
 d:
 cd \fax
 casmgr.exe casmgr.cfg
 fax.exe

The following is a modem initialization string I used for some time and worked
fine:

     ^M?1ATZ0^M?KATM0Q0V1X4&C1&D2\V0%C0\N0^M?K

The modem init string that follows here is the current string used by Golden
CommPass for my modem and it too works just fine except it does not turn the
volume off and I haven't fixed it!

     AT&F^M?KAT&T5^M?K

Pick your poison!

The INTEL 400 is a great modem for OS/2!! Good luck!

Steve