Appendix A. Manual modem commands, Basic AT commands

Appendix A. Manual modem commands

The following section lists commands for manually programming your modem.

Commands are accepted by the modem while it is in Command Mode. Your modem is automatically in Command Mode until you dial a number and establish a connection. Commands can be sent to your modem from a PC running communication software or any other terminal devices.

All commands sent to the modem must begin with AT and end with ENTER. All commands can be typed in either upper or lower case, but not mixed. To make the command line more readable, spaces can be inserted between commands. If you omit a parameter from a command that requires one, it is just like specifying a parameter of 0.

Example:

ATH [ENTER]

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.

D_		0 - 9, A-D, # and *

	L	last number redial

	P	pulse dialing

		Note: Pulse dialing is not supported for
		Australia, New Zealand, Norway, and South
		Africa.

	T	touch-tone dialing

	W	wait for second dial tone

	,	pause

	@	wait for five seconds of silence

	!	flash

	;	return to Command Mode after dialing

DS=n		Dial one of the four telephone numbers
		(n=0-3) stored in the modem non-volatile
		memory.

E_	E0	Commands are not echoed

	E1	Commands are echoed

+++		Escape Characters - Switch from Data Mode
		to Command Mode (T.I.E.S. Command)

H_	H0	Force modem on-hook (hang up)

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