Supported Fax Modems
Faximum will work with most external fax modems that comply with
the Class 2 or Class 2.0 (EIA/TIA-592) standards for fax modems.
Please see the following table which lists a number of Class 2/2.0
modems and indicates the support provided by Faximum. If your
modem does not appear in this table, please see How
can I check if my modem is Class 2/2.0?.
It is important for users to understand that with Class 2/2.0
modems, the firmware within the modem is responsible for handling
the low-level communications protocol between the fax modem and
the fax machine. If there is a problem with the modem's firmware
then the user's modem may experience compatibility problems communicating
with certain fax machines. This is obviously beyond the control
of the Faximum software. While Faximum Software Inc. will work
closely with the user and the modem manufacturer to resolve any
such compatibility problems, we trust users understand that solutions
to certain fax compatibility problems may depend entirely on the
modem manufacturer and not on Faximum Software Inc.
Users ought to understand also that while the list of recommended
modems below is based on careful testing by Faximum Software,
modem manufacturers frequently change their modem design, firmware,
and/or chipset without changing the model number or alerting us.
Therefore the list below cannot be taken as a guarantee by Faximum
Software. Faximum has a close working relationship with the modem
manufacturers listed in the Recommended section and expects that
should any problems arise with recommended devices they will be
able to be resolved quickly.
For this reason, users with mission-critical applications are
urged to consider one of the recommended modems listed below if
they wish to be reasonably assured of reliable operation and prompt
support from the modem manufacturer.
If, however, your immediate need is to evaluate our software
and do not have one of the recommended modems at hand then you
can probably proceed as long as you understand that you may experience
problems that would not arise when using a recommended modem.
Note that the Class 2 and 2.0 fax modem standards are different
and incompatible. For more information on the Class 2/2.0 standards
in particular, or on fax technology in general, please contact
Faximum Sales for a copy of "Frequently Asked Questions about
Fax Technology" (available on the web at http://www.faximum.com/faqs/fax).
The following table lists some Class 2/2.0 modems and their current
level of support by Faximum.
V.34 (SuperG3) Modem Announcement
Faximum Software was honoured to be a part of Multi-Tech
press release announcing their new advanced fax modem.
This modem out-performs all other fax modems we have tested
and is our recommended modem for all new Faximum installations.
See also the Multi-Tech
MT5634ZBA-V92 Datasheet for more details.
Class 2/2.0 Modems - Recommended
The following fax modems are recommended for use with Faximum:
We specifically recommend the MT5634ZBA-V92
and serial versions). We also support and recommend the MultiTech
MT-1932ZDX and MT-2834ZDXb
for installations that already have these modems.
For Direct-Inward Dialling (DID) use we specifically recommend
the Multi-Tech MultiModemDID (MT5634ZBA-DID).
We also support the Multi-Tech MT2834ZDXb when used with the CTPX
VP_2000 interface board.
We also have reports from our Australian resellers that some
Netcomm fax modems work
well with our software although we do not have any specific recommendations.
Class 2/2.0 Modems - Operational
The following fax modems are known to work with Faximum but
may exhibit compatibility problems with certain fax machines:
- ZyXEL (all models with fax capability)
- Computer Peripherals VIVA Fax Modems
- Supra FAXModemPLUS
- TeleBit (all WorldBlazer and TrailBlazer models with fax capability,
QBlazer and TeleBlazer models are supported but not recommended)
- U.S. Robotics (all Courier models with Class 2.0 fax capability)
- ZOOM Fax Modems
Class 2/2.0 Modems - Others
The following fax modems have been been used by Faximum users
with mixed results. Some have experienced problems while others
are satisfied with their operation with Faximum. This variation
may be caused by different ROM revisions or other differences
between different versions of the same modem.
- AT&T Paradyne
- Practical Peripherals
- Supra FAXModem V.32 and V.32bis
- Telebit QBlazer
- US Robotics Sportster
- Other Rockwell Chip-Set-Based Modems
Faximum PLUS Release 4 supports data/fax sharing...the ability
to have both incoming and outgoing data and fax calls using the
same modem and phone line. This feature requires that the modem
supports "adaptive answer". Faximum has verified that adaptive
answer works well with MultiTech modems. Customers using other
modems are welcome to report their experience to Faximum Software
but must understand that Faximum is under no obligation to support
data/fax sharing with modems other than MultiTech.
If you have a modem that does not appear on the above list you can
determine if it is Class 2/2.0 and whether it is Rockwell-based
by connecting a terminal to the modem (or using cu) and issuing
the following commands at 19,200 baud:
- If the modem is Class 2 or 2.0 then the response from the
modem to this command ought to include the number 2 or 2.0.
If the modem is a Class 2 modem, then issue the first of
the two AT commands shown on each line below (i.e. AT+FMFR?,
If the modem is a Class 2.0 modem, then issue the second
of the two AT commands shown on each line below (i.e. AT+FMR?,
- AT+FMFR? (AT+FMR?)
- This will usually provide the name of the manufacturer of
the chip set used in the modem. (You may need to type AT+FCLASS=2
or AT+FCLASS=2.0 before the FMFR or FMR
command will be accepted by the modem.)
- AT+FMDL? (AT+FML?)
- This will usually provide the model number of the chip set
used in the modem.
- AT+FREV? (AT+FRV?)
- This will usually provide the firmware revision level for
- AT+FBUF? (AT+FBF?)
- This will usually provide the size of the internal buffer
within the modem.
For reliable operation with UNIX we recommend modems with at
least 1K of buffer.
If you have any doubts or questions about your fax modem, please
contact Faximum Technical Support (firstname.lastname@example.org),
providing the response to these five commands.