Multi
‐
Tech
Systems,
Inc.
MT9234ZBA
‐
Series
User
Guide
5
Chapter 1 – Introduction
Congratulations
on
your
purchase
of
the
MultiModem
ZBA
modem.
You
have
acquired
one
of
the
finest
intelligent
voice/data/fax
modems
available
from
one
of
the
world’s
oldest
modem
manufacturers:
Multi
‐
Tech
Systems,
Inc.
The
MT9234ZBA
‐
Series
is
available
with
and
without
the
voice
feature.
The
MT9234ZBA
global
product
is
approved
in
40+
countries.
The
MT9234ZBA
with
the
voice
feature
supports
voice
and
a
full
‐
duplex
speakerphone.
This
allows
you
and
the
caller
to
speak
and
listen
at
the
same
time.
This
user
guide
will
help
you
to
install,
configure,
test
and
use
your
modem.
Check
Multi
‐
Tech’s
web
site
for
current
versions
of
our
product
documentation.
Features
Increased Upload Speeds.
With
the
V.92
MultiModem
ZBA
business
modem,
you
can
achieve
an
upload
speed
of
48K
bps
(30%
increase
over
V.90
modems).
This
higher
upstream
speed
reduces
data
transfer
time
for
large
e
‐
mails
with
attachments
and
for
ftp
site
uploads,
as
well
as
improves
operation
for
interactive
applications.
V.44 Compression.
V.44
compression
enables
data
throughput
rates
of
higher
than
300K
bps
‐
much
faster
than
V.42bis
data
compression
rates
of
150
‐
200K
bps.
For
users,
it
means
that
your
Web
browsing
will
be
much
faster.
Enhanced Fax Features.
The
MultiModem
ZBA
business
modem
supports
V.34
fax
and
Error
Correction
Mode
providing
significant
performance
and
reliability
enhancements
over
previous
fax
standards.
V.34
sends
and
receives
faxes
at
33.6K,
more
than
double
the
speed
of
the
V.17/14.4K
fax
standard.
Error
Correction
Mode
adds
reliability
while
increasing
performance
of
fax
transmissions.
Together
these
enhancements
increase
the
performance
of
the
modem
to
levels
previously
only
found
in
more
expensive
dedicated
fax
boards
and
machines.
Remote Configuration.
Whether
you
provide
connectivity
for
a
sales
office
just
miles
away
or
for
multiple
office
across
the
world,
the
MultiModem
ZBA
lets
you
take
care
of
the
configuration
from
a
central
site.
Callback Security.
The
MultiModem
ZBA
provides
password
protection
and
helps
reduce
long
distance
charges
for
remote
offices
and
users
requiring
access
to
the
central
site
LAN.
This
modem
supports
30
passwords
and
three
configuration
options.
With
the
"fixed"
callback
option,
the
central
site
modem
stores
a
password
and
the
remote
user's
phone
number.
Once
the
remote
site
enters
their
password,
the
central
site's
modem
calls
back
using
the
number
stored
in
its
database.
The
"variable"
option
lets
users,
such
as
road
warriors,
enter
their
fixed
password
and
a
call
back
number
each
time
they
call.
The
"pass
through"
option
is
used
to
provide
the
security
of
password
protection,
while
bypassing
the
call
back
process.
Global Approvals.
With
the
globally
approved
MultiModem
ZBA
business
modem,
you
need
just
one
modem
for
worldwide
use.
This
model
has
approvals
in
many
countries
so
you
can
ship
one
SKU
(stock
unit)
virtually
anywhere
in
the
world.
Localization
kits
are
available
for
country
‐
specific
power
cords,
phone
cords
and
telco
adapters.
Go
to
www.multitech.com/globalmodem
for
details.
AT
Commands
Information
The
AT
Commands,
S
‐
Registers,
and
Result
Codes
for
the
MT9234ZBA
‐
Series
Modems
are
published
in
a
separate
Reference
Guide.
You
can
download
the
guide
from
the
Multi
‐
Tech
website.