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3. Choose your modem from the software's modem list. If it
isn't listed, choose a generic modem and modify the set-
tings as necessary.
4. Change the modem initialization string, if necessary. The
factory default configuration works well for most purpos-
es. To load the factory default configuration, use AT&F. To
load a custom configuration that was saved using the &W
command, use ATZ. Note that the Z command must be in
a command string by itself. For a Macintosh, the initializa-
tion string should include the &D0 command. If you do not
want the modem to always answer the phone, add S0=0 to
the string. To use Caller ID with the modem, add S0=2 to
the string (Caller ID information is sent between the first
and second rings, so the phone must ring at least twice be-
for the modem picks up the line). Depending on the soft-
ware, you might have to end the string with a carriage
return character (^M).
Note: To change the modem's default configuration, type
new commands in the communication program's terminal
window, adding the &W command to store them in the
modem's nonvolatile memory. For instance, to create a
default configuration for a Macintosh computer that turns
off autoanswer, type AT&F&D0S0=0&W. The new config-
uration loads automatically whenever the modem is turned
on or receives the ATZ command.
5. Select the port the modem is connected to (normally COM1
or COM2).
6. Select your serial port speed. This can be labeled "maximum
speed," "DTE bps," or "baud rate." Ideally, if you use data
compression, you should set your serial port baud rate to
four times the modem's maximum transmission speed or
faster; however, few files can be compressed enough to
require speeds that high, and not all serial ports can handle
speeds that high.
MultiModemII Quick Start Guide
7
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