Acer Modemconte Command Structure, Basic AT Commands, Bold text Command Function, Bell mode

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- vices.

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 speeds.

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. Example:

ATH [ENTER]

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.

Command		Function
A		Manually answer incoming call
A/		Repeat last command executed. Do not precede
		A/ with AT or follow with ENTER
AT		Appears at the beginning of every command
		line
B_	B0	CCITT mode
	B1	Bell mode
	B2	With V.23, originate calls transmitting at 75
		bps, receiving at 1200 bps. Answer calls
		transmitting at 1200 bps, receiving at 75 bps.
	B3	With V.23, originate calls transmitting at 1200
		bps, receiving at 75 bps. Answer calls
		transmitting at 75 bps, receiving at 1200 bps
D_		0 - 9, A-D, # and *
	L	last number redial

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