39
MINIMODEM USB
equivalent to
AT&W0
. Most commands have a default
value, which is the value that is set at the factory.
The default values are shown in the “AT Command
Summary,” which begins on the next page.
You must press ENTER to send the command to the
modem. Any time the modem receives a command,
it sends a response known as a result code. The most
common result codes are OK, ERROR, and the
CONNECT messages that the modem sends to the
computer when it is connecting to another modem.
For a table of valid result codes, see
Section 5.4
.
You can issue several commands in one line, in what
is called a string. The command string begins with
AT
and ends when you press ENTER. Spaces to separate
the commands are optional; they are ignored by the
command interpreter. The most familiar command
string is the initialization string, which is used to
configure the modem when it is turned on or reset,
or when your communications software calls another
modem.
