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Reference
1
AT commands
AT commands are commands used to configure each FOMA function from PC.
FOMA terminal acts according to the command you enter from the PC.
AT command is available on the "FOMA F2402" modem only (F2402 Utility is used
for control of voice communication).
(
→
P. 102)
Input form of AT commands
Terminal mode screen of communication software is used for direct input of AT commands.
In this manual, Windows' HyperTerminal is used. "AT" is always followed by a command.
Be sure to enter one-byte alphanumeric characters. Entering example is as follows.
One line of AT commands
In the terminal mode screen of the communication software, "one line" is from the first
character to the last character before pressing the
key. Even if the characters have
reached the right end of the screen and the line has automatically been fed to the next line, the
whole part is recognized as one line. AT commands must be entered in one line including
parameters (numbers and symbols) following the command. Up to 300 characters (including
"AT" and
) can be entered as an AT command.
INFORMATION
•
The terminal mode is a mode in which a PC functions as a communication terminal. The
entered characters are sent to devices and lines connected to the communication ports.
Input mode of AT commands
To operate FOMA terminal with AT commands, the PC must be in the terminal mode, too. If
your communication software has the terminal window, enter the AT command in the window.
In the terminal mode, the characters entered from the keyboard are sent to the communication
port. Whether the AT command sent to the communication port can function or not depends on
the status of FOMA terminal.
z
Offline mode
FOMA terminal is in the stand-by status. Usually, AT commands operate FOMA terminal
during this status.
z
Online data mode
FOMA terminal is communicating with the access point. Entering AT commands in this
status may result in malfunction of modem at the access point due to the command
characters directly sent to the access point. Do not enter any AT command during
communication.
ATD *99 ***1#
Return mark : Press the
key. This is a command break.
Command: Name of command.
Parameter: Contents of command.
