mand Mode until you dial a number and establish a connec-
tion. Commands may be sent to your modem from a PC
running communication software or any other terminal de-
Your modem is capable of data communication at rates
of: 300, 1200, 2400, 4800, 9600, 14400, 19200, 38400, and
57600 bps. Make sure your COM port baud rate setting in
your communications software is set to one of the above
3.2 Command Structure
All commands sent to the modem must begin with AT
and end with ENTER. All commands may be typed in either
upper or lower case, but not mixed. To make the command
line more readable, spaces may be inserted between com-
mands. If you omit a parameter from a command that
requires one, it is just like specifying a parameter of 0.
This command causes your modem to hang up.
3.3 Basic AT Commands
In the following listings, all default settings are printed
in bold text.
Manually answer incoming call
Repeat last command executed. Do not precede
A/ with AT or follow with ENTER
Appears at the beginning of every command
With V.23, originate calls transmitting at 75
bps, receiving at 1200 bps. Answer calls
transmitting at 1200 bps, receiving at 75 bps.
With V.23, originate calls transmitting at 1200
bps, receiving at 75 bps. Answer calls
transmitting at 75 bps, receiving at 1200 bps
0 - 9, A-D, # and *
last number redial