B.J. Guillot
2611 Rushwood Circle
Houston TX 77067-1941
United States of America
This documentation only describes send fax operation!
The information in this document is subject to change without notice and should not be construed as a commitment by B.J Guillot. B.J. Guillot assumes no responsibility for any errors that may appear in this document.
BGFAX is a trademark of B.J. Guillot, Houston Texas USA
Turbo Pascal is a trademark of Borland International, Inc.
DesqView is a trademark of Quarterdeck, Inc.
QuickLink II is a trademark of Smith Micro Software, Inc.
ZFAX is a trademark of ZyXEL, Zero-One Networking
OS/2 is a trademark of the IBM Corporation
X00 and SIO are trademarks of Raymond L. Gwinn, Woodbridge Virginia USA
BNU is a trademark of David Nugent & Unique Computing Ptd Ltd
Windows and Windows for Workgroups are trademarks of Microsoft Corporation
CAS is a trademark of PureData Communications
I-Modem is a trademark of US Robotics, Inc.
Introduction
How to Send a Fax
Result Codes (Errorlevels)
MAKEFAX.EXE
Font Editor (FNTEDIT.EXE)
Environment Variables
BGFAX.CNF Configuration File
Command Line Parameters
Class 1 HDLC Frames
Class 2 Hangup Status Codes
Multitasking Warning
Technical Support
BGFAX works with normal Class 1, Class 2, and Class 2.0 fax modems. BGFAX
does not support CAS modems such as the (Intel, now Puredata) Satisfaction
fax board. To determine if your modem is compatible, start up a terminal
(serial communications) program, and type "AT+FCLASS=?" without
the quotes, then press [Enter]. If the modem does not return
"ERROR", BGFAX should work. The modem will return the fax classes
which are supported, such as "0,1,2" for both Class 1 and
Class 2 support.
BGFAX comes with both DOS and OS/2 executables. BGFAX is not a TSR.
BGFAX can also receive faxes, but this manual describes only send fax operation.
First, we need to make a batch file that will convert the ASCII file to a fax
image file, send it, and then report the result.
SENDFAX.BAT
SENDFAX.CMD
BGFAX can now exit with several possible failure codes...
(Note 2)
(Note 3)
The CPU handles most of the work in a Class 1 transmission, while the fax modem handles most
of the work in a Class 2 transmission. Because of that, people running multitasking operating
systems may want to rely on Class 2. However, the modem manufacturer's implementation of
Class 2 may be flawed, which is the reason why BGFAX offers the /C1
parameter.
(Note 4)
(Note 5)
Remember that when checking for errorlevels in batch (or command) files, the check must start
from the highest possible errorlevel and proceed in descending order--a DOS limitation, not a
BGFAX limitation. If you are calling BGFAX from a Turbo Pascal program's "exec" procedure,
you can use the "dosexitcode" function to report the returned errorlevel without having to worry
about DOS's descending order nonsense.
I assume languages such as C and applications such as FoxPro provide a similar method of
returning the status code of an executed program.
MAKEFAX is a simple program. It will handle form feeds
If that is not satisfactory for your application, you can obtain the 2FAX
program from technical support. 2FAX allows multiple fonts per page and
allows easy integration of PCX graphic files into your fax. They can use
fonts that store 80 characters per lines, 132 characters per line, etc.
MAKEFAX must be given an input filename and an output filename. The input
filename must be an ASCII text file. Example...
In DOS, environment variables can be set in any batch file (such as
BGFAX.CNF
By default, BGFAX assumes the following...
If you tell BGFAX to use a FOSSIL driver (po=F1, po=F2, etc.)
you must tell your FOSSIL driver to unlock any locked port
DTE speed before BGFAX executes. If you are using X00, the
command line is
Note that we did NOT use
Non-standard ports CANNOT be specified in the
Note that when BGFAX sends faxes, it will always lock the com port's DTE speed to 19200 bps.
This is done in all fax Classes, but it is essential that Class 2 modems have their port locked at
19200 bps, or they may refuse the transmit the fax correctly.
Similarly, if you are using OS/2, the COM port must not be locked by SIO.
The equivalent command to unlock COM2 with SIO for OS/2 is
You may also have to put a flow control command into the
ds= entry. See /HW
in Command Line Parameters for more information.
Do not forget that only a maximum of 100 characters can be placed in the top-of-
page headers.
Let's review...
BGFAX would send the file "OUTPUT.FAX" to 555-1212 with a maximum speed of 9600 bps.
BGFAX will work in "quiet" mode--displaying status information on a single line (line number
10). BGFAX will force Class 1 mode, and it will start sending the fax at page number 2.
BGFAX will log the results into the BGFAX44.LOG file and the dates will be in European
format instead of American format.
See the information regarding the /HW command. It may help in some cases, if you remember
to change the dial string ds= setting so that CTS handshaking is activated.
If you are using OS/2, it is best to use the OS/2 version of BGFAX. However, if the DOS
version must be used, in the DOS settings menu for the DOS window, select
"SIO_Mode_XON/XOFF" and change it to "Received XON is flow control".
I am uncertain as to whether Microsoft Windows or WFWG has an equivalent setting.
If BGFAX is running under DesqView, in some cases, changing the "Optimize Communications"
setting (in DV's configuration) to "YES" improved things.
Class 1 modems require precise timing during fax transmission, and sometimes will fail under
heavy-duty multitasking loads.
For our first example, we will send the ASCII text file "HELLO.TXT"
to fax machine located at phone number 555-1212.
@echo off
set bgfax=c:\bgfax
%bgfax%\makefax.exe %1 output.fax
%bgfax%\bgfax.exe /send:9600 output.fax %2
if errorlevel 5 goto good
if errorlevel 1 echo FAX TRANSMISSION FAILED
goto end
:good
echo FAX SENT SUCCESSFULLY
:end
To send the fax from DOS, simply run the batch file just created
with two command line parameters; the filename and the phone number...
To do the same thing in an OS/2 window, we construct a command (batch) file
that does exactly the same thing except we use BGFAX2.EXE and
MAKEFAX2.EXE...C:\> SENDFAX HELLO.TXT 555-1212
@echo off
set bgfax=c:\bgfax
%bgfax%\makefax2.exe %1 output.fax
%bgfax%\bgfax2.exe /send:9600 output.fax %2
if errorlevel 5 goto good
if errorlevel 1 echo FAX TRANSMISSION FAILED
goto end
:good
echo FAX SENT SUCCESSFULLY
:end
To send the fax, use the exact same command line from the DOS version...
[C:\] SENDFAX HELLO.TXT 555-1212
In standard fax transmission mode, BGFAX can only exit with two possible errorlevels.
Errorlevel 5 -- Successful fax transmission
For those of you out there that would prefer more status information on transmission failures, an
"extended results" mode is available. Add
Errorlevel 1 -- Fax transmission failure
/ER to the end of the BGFAX command line.BGFAX /SEND:9600 OUTPUT.FAX 555-1212 /ER
Errorlevel 19 -- Class 1 failure, Too many retrains
(see Note 3)
(Note 1)
Errorlevel 18 -- Check Identity Failure
(see /CI:xxxxx)
Errorlevel 17 -- Remote fax machine does not support 2D-MR fax compression
(see Note 1)
Errorlevel 16 -- Remote fax machine does not support high resolution documents
(see Note 2)
Errorlevel 15 -- Class 1 failure, HDLC response timeout
(see Note 3)
Errorlevel 14 -- Modem response timeout
(see Note 3)
Errorlevel 13 -- Never connected to remote fax machine ("NO CARRIER")
Errorlevel 12 -- Class 2 failure, Hangup Status Code received
(see Note 3)
Errorlevel 11 -- "NO DIALTONE"
Errorlevel 10 -- "BUSY"
Errorlevel 7 -- "BLACKLISTED"
(see Note 4)
Errorlevel 5 -- Successful fax transmission
Errorlevel 1 -- Generic fax transmission failure
(see Note 5)
MAKEFAX.EXE creates only 1D-MH compressed faxes, but it is possible to use alien programs
which create 2D-MR compressed files. 2D-MR is a better compression method, and the fax file
sizes will be anywhere from 12-50% smaller than the 1D-MH equivalent. Some fax devices are
unable to receive 2D-MR faxes, and since BGFAX is unable to convert the file on the fly, it will
abort and report errorlevel 17.
MAKEFAX.EXE can create both low (100 dpi) and high resolution (200 dpi) fax files. All fax
machines are capable of receiving high resolution files, but sometimes you may find a computer
fax modem that has been configured incorrectly for fax receiving. If that occurs, BGFAX will
abort and report that the remote machine is incapable of receiving high resolution documents.
This is very rare.
If a Class 2 failure (errorlevel 12) occurs, sometimes it is beneficial to retry and send the fax
while forcing BGFAX to use Class 1 transmission mode. See the Command Line Parameters
section later in this manual for information on the /C1 parameter. On the same note, if you have
already been forcing BGFAX to use Class 1 operation,
and a Class 1 failure (errorlevel 15 or 19) is
reported, it may be beneficial to try and resend the fax in Class 2 mode. If a generic modem
timeout occurs (errorlevel 14), you might want to try and resend using the opposite fax
Class.
A "BLACKLISTED" response code is only possible in a handful of non-USA countries. This
response can occur if you are trying to send a fax to a telephone number that is specifically
restricted by the modem, or if you try dialing the same number, over and over, without waiting
a minimum amount of time as specified by the telecom regulators in the country in question.
Again, you do not need to worry about this if you live in the United States.
In extended results mode (/ER), an errorlevel of 1, generic fax transmission failure pretty much
means the modem failed to initialize properly, as most other regular failures (modem timeouts)
are covered by other errorlevels.
Example Turbo Pascal 7.0 program which calls BGFAX...
{$m 8192, 0, 8192}
program
sendfax; { SENDFAX.PAS }
uses
dos, crt;
begin
swapvectors;
exec('c:\bgfax\bgfax.exe', 'output.fax 555-1212 /er');
swapvectors;
if doserror > 0 then
writeln('BGFAX was unable to execute!')
else begin
case dosexitcode of
0,1,12,14,15 : writeln('Transmission failed!');
5 : writeln('Transmission successful!');
7 : writeln('The number is blacklisted!');
10 : writeln('The number was busy!')
11 : writeln('NO DIALTONE');
13 : writeln('The remote machine did not connect!');
16, 17 : writeln('The remote machine did not match our capabilities!');
18 : writeln('The fax file could not be opened!');
end;
end;
end.
MAKEFAX.EXE is the program that converts ASCII text files to fax image format files.(Ctrl-L, ASCII-12). Lines can be up
to 100 characters wide with up to 66 lines per page.
MAKEFAX offers three optional command line parameters...
MAKEFAX TEXTFILE.TXT FAXFILE.FAX
If you wish to use an alien program to create fax image files, BGFAX can
correctly send only files that are compatible with QuickLink II (QFX) or
ZFAX Version 2./HR
Instructs MAKEFAX to create a high resolution (200 dpi) fax file rather than
the standard low resolution (100 dpi) file. This is not really necessary,
as computer-based fax sending, even in low resolution, has excellent quality.
In addition, a high resolution fax file will be twice as large as a low
resolution file, meaning that it will take twice as long to transmit
the fax!/SP
Instructs MAKEFAX to use "short pages" when converting the ASCII file to the
fax file. Normally, if a ASCII text file contains only a single line, MAKEFAX
will create a full 66 line page. The /SP option tells MAKEFAX to produce only
the first line, then quit. This will decrease the amount it takes to send a
fax (but not by much.)/F0
[F Zero] Instructs MAKEFAX to use an alternate font. This font is not as nice
looking as the standard font, but some people prefer it.
The font editing program is provided so that users in other countries can design their own letters.
You will still be limited to a maximum of 255 characters per font. Languages such as Russian,
which has backwards-R letters are key examples. The FNTEDIT.EXE program modifies the
BGFAX.FNT file. The BGFAX.FNT file is required for BGFAX send operation. The
FNTEDIT.EXE file can be deleted if you have no need for font editing.
If you don't quite know what an "environment variable" is, go to your DOS
prompt, and type "SET" without the quotes, then press [Enter].
You will see
a list of all the current environment variables in use. To set an environment
variable, the command "SET BGFAX=C:\BGFAX" will set the BGFAX
environment variable to "C:\BGFAX". When BGFAX is executed,
it will look for this environment variable, and then look for the
BGFAX.CNF configuration file in the directory specified
by the variable.AUTOEXEC.BAT, or SENDFAX.BAT). In OS/2,
environment variables must be set in the long CONFIG.SYS
file, or in command (CMD) files, such as SENDFAX.CMD.
See How to Send a Fax.
Much of BGFAX's behavior is controlled by the BGFAX.CNF
configuration file. BGFAX.CNF is a simple ASCII file.
Here is a typical example...
po=1
id=713 555 1212
ss=ATH0Z
ds=ATDT
dt=60
mb=3
sw=10
tc=ATHM
fr=ACME, Inc. (713-555-1212)
fh=To: %to21% From: %fr42% %mo2%/%dy2%/yr2% %hr2%:%mi2% Pg %pg2%/%mp2%
Comport selection for DOS version...
Comport selection for OS/2 version...
po=1
Tells BGFAX that the fax modem is found on port COM1. There are several other
ways to specify the communications port.
po=1 uses standard COM1 config: 0x3f8, IRQ4
po=2 uses standard COM2 config: 0x2f8, IRQ3
po=3 uses standard COM3 config: 0x3e8, IRQ4
po=4 uses standard COM4 config: 0x2e8, IRQ3
po=3e8x5
Tells BGFAX to use the (non-standard) serial port found at address 0x3e8
using IRQ5.po=278x12
Tells BGFAX to use the (non-standard) serial port found at address 0x278
using IRQ12.po=f1
If you want BGFAX to use a FOSSIL driver, the letter "F" must precede
the port number. Some high speed serial cards require the use of a FOSSIL
driver, such as the RocketFOSSIL that comes with the Rocketport multi-
port serial card. Common FOSSIL drivers include X00 and BNU. Most
users will have no need for a FOSSIL driver."XU.EXE LOCK:1:OFF".
If you are using BNU,
the command line is
"BNU.EXE /L1:0".
Those examples for X00 (XU) and BNU assumed you are using COM2.
FOSSIL drivers are wacky critters, and they always
refer to the COM port as being a number one
less than the actual com port number
(COM1=0, COM2=1, COM3=2, etc.) If you have no idea
what FOSSIL drivers are, you probably are not using one,
so ignore this paragraph.
p2=1
Tells BGFAX that the fax modem is found on OS/2 device COM1."po=", but "p2=".BGFAX.CNF file, because OS/2 does not allow the DOS
application to talk directly with the
hardware. Non-standard ports must be specified in the OS/2
CONFIG.SYS file.p2=3
To define OS/2 device COM3 at 0x3e8 using IRQ5 with
OS/2, the OS/2 CONFIG.SYS file will have a line such as the following...
The above tells the Ray Gwinn's SIO communications driver that you are
mapping COM3 to the address DEVICE=C:\OS2\UTIL\SIO.SYS (3,3e8,5)0x3e8 using IRQ 5. Your BGFAX.CNF
file would have a line that reads "p2=3".
Note that BGFAX has been tested only
with SIO.SYS, and unpredictable results may occur if used
with IBM's stock COM.SYS drivers."SU.EXE 2 LOCK 0".Getting back to the BGFAX.CNF file...
id=713 555 1212
Tells BGFAX what to use for our transmitted station ID--the phone number
that shows up in the remote fax machine's LCD display. It is
recommended that only numbers, spaces, and the plus (+) symbol be used,
as some fax machines will not work correctly if this ID field contains
alphabetical characters, or dashes. Examples...
id=+1 713 555 1212 Valid
id=713 555 1212 Valid
id=+1 713.555.1212 Not Valid (the periods)
id=713-555-1212 Not Valid (the dashes)
id=ACME, INC. Not Valid (the alphabetical characters)
ss=ATH0Z
[AT H zero Z] The ss= entry represents the initialize string that will be sent
to the modem when BGFAX first starts up. The ATH0Z string is ideal.
You should only change it if you are using an ISDN modem, such as
the ZyXEL 2864I, and need to switch to the modem/fax/voice DTE
channel before attempting to enter fax mode. So, for the ZyXEL
2864i, set "ss=AT&O0". [AT and oh zero]ds=ATDT
The ds= entry represents the dial string that will be used when BGFAX places an
outgoing fax call. Other examples...
ds=ATM0DT Keep the modem speaker off always
ds=ATM2DT Keep the speaker on continuouslydt=60
The dt= entry represents the time, in seconds, that BGFAX will wait for a fax
connection to be established before it aborts the call attempt. If 60
seconds elapse, BGFAX will exit with an errorlevel of 1, or an errorlevel
of 13 if in /ER mode.mb=3
The mb= entry represents the number of times that BGFAX will attempt to call
a "BUSY" phone number before aborting with an errorlevel of 1.
This entry is ignored if /ER mode is set--only one call will be attempted.sw=10
The sw= entry represents the time, in seconds, that BGFAX will wait after
encountering a busy signal, before it attempts to redial. This entry is
ignored if /ER mode is set--only one call will be attempted.tc=ATHM
The tc= entry represents the string BGFAX will send to the modem after the fax
session is complete. ATHM is sent to hang up the modem, and turn the modem
speaker off. Some people may want tc=ATH1M to busy out the phone line.fr=ACME, Inc. (713-555-1212)
The fr= entry represents your company or personal name. It can
actually say anything you want. It is used in the fh= template
for the top-of-page headers...
fh=To: %to21% From: %fr42% %mo2%/%dy2%/yr2% %hr2%:%mi2% Pg %pg2%/%bp2%
The fh= entry represents the template for the top-of-page fax header
that is added to every outgoing page of text. Generally, this header
includes information such as destination and origin phone numbers, date,
time, current page number, maximum number
of pages, etc. The above template would generate this result...
bgfax /send output.fax 555-1212
To: 555-1212 From: ACME Inc. (713-555-1212) 08/16/95 14:26 Pg 01/05
If you want to "To" field to say something different...
bgfax /send output.fax 555-1212 /to:John_Doe,_Annex_Inc
To: John Doe, Annex Inc From: ACME Inc. (713-555-1212) 08/16/95 14:26 Pg 01/05
So, what do all those % things do? Here is the template dictionary:
The NN represents the number of characters to pad each field. For the %to and %fr
fields, they will be right padded with blank spaces. For all the other fields, they will
be left padded with zeros.%toNN% ...destination
%frNN% ...origin (the fr= line from BGFAX.CNF, or /FR: parameter.)
%moNN% ...current month
%dyNN% ...current day
%yrNN% ...current year
%hrNN% ...current hour
%miNN% ...current minute
%pgNN% ...current page number
%mpNN% ...current maximum page number
fh=To: %to21% From: %fr42% %mo2%/%dy2%/yr2% %hr2%:%mi2% Pg %pg2%/%bp2%
To: 555-1212 From: ACME Inc. (713-555-1212) 08/16/95 14:26 Pg 01/05
Notice how the destination phone number was right padded with
spaces so that the field took exactly 21 characters,
%to21%, and
that the company name,
ACME Inc. (713-555-1212) was right padded
with exactly 42 characters,
%fr42%. Also note other fields, such
as the month, were left padded with zeros to two characters,
with a zero.Command Line Parameters
/SEND
The /SEND parameter must always be the first command line parameter. It
is always followed by two additional parameters (fax filename and phone number).
bgfax /send output.fax 555-1212/SEND:9600
Same as /SEND, except this limits the maximum transmission speed to 9600 bps.
Valid speeds are 2400, 4800, 7200, 9600, 12000 and 14400. Many older fax
modems are already limited to 9600.
bgfax /send:4800 output.fax 555-1212/SP:nn
Forces BGFAX to transmit a fax beginning at page nn of the fax image file. So,
if you have a 40 page fax, and want to send pages 37-40...
bgfax /send output.fax 555-1212 /sp:37/QQ:nn
Tells BGFAX to only display a single line of text on the screen while it is sending
the fax. This is so that your DOS application can keep its screen intact as it shells
to BGFAX. The nn number represents the line number of the screen. /QQ:1 puts
the status bar on the top of the screen. To put the status bar at the bottom...
bgfax /send output.fax 555-1212 /qq:25/PID:nn
If this parameter is present, BGFAX assumes it is working in a multitasking
operating system in which more than one BGFAX task or process may be running.
The nn represents the Process ID number, and this PID number will be appended
to any log files BGFAX uses. To force BGFAX to name its log file
BGFAX2.LOG instead of BGFAX.LOG...
bgfax /send output.fax 555-1212 /pid:2/FR:xxxx
This parameter overrides the fr= entry in the BGFAX.CNF file. Underscores must
be used instead of spaces./TO:xxxx
This parameter is used to stuff the %toNN% fh= template. If not used, the
template will be stuffed with the destination telephone number, as given on the
command line. Underscores must be used instead of spaces. Examples...
bgfax /send output.fax 555-4141 /fr:ACME,_Inc._Sales_Dept
bgfax /send output.fax 555-4141 /to:John_Doe_XYZ,_Inc.
bgfax /send output.fax 555-4141 /fr:John_Q._Public /to:John_Doe
To: 555-4141 From: ACME Inc. Sales Dept 08/16/95 14:26 Pg 01/05
To: John Doe XYZ, Inc. From: ACME Inc. (713-555-1212) 08/16/95 14:26 Pg 01/05
To: John Doe From: John Q. Public 08/16/95 14:26 Pg 01/05
/C1
Forces Class 2 modems to use Class 1. The modem must support Class 1./C2
Forces Class 2.0 modems to use Class 2. The modem must support Class 2./ER
Places BGFAX into extended results mode. This was extensively discussed in the Result
Codes (Errorlevels) section./HW
Places BGFAX into hardware flow control (CTS handshaking) mode. BGFAX normally
defaults to XON/XOFF software flow control, as that is what most fax modems support
by default. If the /HW switch is used on a Class 2 modem, you may need to modify the
ds= dial string entry from BGFAX.CNF. ds=AT&K3DT will usually work on most
Rockwell based modems (&K3). For other modems, you will need to look up the
command to force RTS/CTS flow control. Class 2.0 modems will not need the ds=
adjusted if the /HW switch is used. Some Class 1 modems may need an adjustment,
others may not. This switch is ignored in the OS/2 version./50
Places BGFAX into 50 line mode. You must have a VGA monitor and graphics card for
this switch to function. This switch is ignored in the OS/2 version./ED
Places BGFAX into "European Date" mode. When BGFAX writes to the log files, all
dates will be logged in DD-MM-YY format instead of the traditional American format of
MM-DD-YY./NB
Places BGFAX into "No Banner" mode. Normally, BGFAX puts a top-of-page header
on every page that is sent out. /NB will cause BGFAX to omit the top-of-page headers.
The /NB switch should only be used in countries where this is legal. The United States
and Canada do not permit anonymous faxes, so the /NB switch should never be used./NL
BGFAX normally creates a detailed log file (BGFAX.LOG), and if this
command line parameter is used, it will no longer write the log file./SD
BGFAX normally creates a detailed log file (BGFAX.LOG), but if this
command parameter is used, it will skip most of the debug information.
This results in a much shorter log file, but still has enough data
to get an idea of what is happening./MO
Forces BGFAX to use only monochrome (black-and-white) colors for people
without color monitors./NM
Forces BGFAX to use "numeric mode" when talking to the modem in Class 1
mode. This might be needed if you are sending faxes from a US Robotics
I-Modem (ISDN "modem"). Numeric mode puts the modem into "ATEQV" mode./SL:nnn
Add nn extra scan lines to the top of each page sent.
BGFAX /SEND file.fax 555-1212 /si:20
BGFAX will add 20 blank scan lines to the top of each page
as it sends. Just adds extra white space, nothing special./CI:xxxxx
Check ID of remote machine before we send the document.
BGFAX /SEND file.fax 5079620 /ci:7_9620
BGFAX will dial the remote fax machine, and make sure
that a "7 9620" appears somewhere in the remote fax ID.
Note that underscores (_) are used to represent spaces.
If /ER mode is active, if the Check ID fails, BGFAX /SEND
will exit with errorlevel 18. If no /ER, if it fails, it
will exit the standard error exit errorlevel 1. How is this
useful? Well, say someone gets call forwarding on their fax
line, and they have to forward their number to an alternate
fax machine for a week while their fax machine is repaired.
The remote fax machine is probably programmed with an
alternate remote ID, and BGFAX /SEND will abort when it
realized the remote ID does not match what it should, in
the case that you need to send very confidential documents.
Compound Example
bgfax /send:9600 output.fax 555-1212 /qq:10 /c1 /sp:2 /ed /pid:44
Class 1 HDLC Frames
When BGFAX uses Class 1 mode, you will often see text on the screen which says "Receiving
HDLC frame" or "Sending
NSF... Non-Standard Facilities
EOP... End Of Procedures
CSI... Called Subscriber Identification
TSI... Transmitter Station Identification
FTT... Failure To Train
MPS... Multi-Page Signal
DIS... Digital Identification Signal
DCS... Digital Command Signal
TCF... Training Check Frame
CFR... Confirmation to Receive
MCF... Message Confirmation
EOM... End Of Message
DCN... Disconnect Frame
DTC... Digital Transmit Command
CIG... Calling Subscriber Identification
CRP... Command Repeat
Class 2 Hangup Codes
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� 2.0 Class 2 � Cause Description �
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� 00-0F 0-9 � CALL PLACEMENT AND TERMINATION �
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� 00 0 � Normal and proper end of connection �
� 01 1 � Ring Detect without successful handshake �
� 02 2 � Call aborted, from +FK/+FKS or
Multitasking Warning
If you are trying to run the DOS version of BGFAX in a multitasking environment, such as
Desqview, Windows, Windows for Workgroups, or OS/2, you may encounter problems
transmitting the fax image. Many multitasking operating systems seem to muck up software
based XON/XOFF flow control, which is critical for flawless fax transmission. If this happens,
the remote fax machine may only receive a few lines of text, followed by "bar codes" and other
such anomalies.