ZyXEL Communications 56K Plus Series manual 30

Omni 56K Plus Series User’s Guide

Table 4-2 AT Command Sets Requiring an "AT" Prefix

COMMAND	OPTIONS		FUNCTION & DESCRIPTION	REF.
	W		Wait for the second dial tone. Remaining digits will be dialed as
			in-band DTMF.
DL			Dials the last-dialed number.
DSn	n=0-3		Dial the number stored in non-volatile RAM at location 'n.'	S44.3
En			Command mode local echo of keyboard commands.	S23.0
	E0		Echo off
	E1	*	Echo on
Hn			On/off hook control.
	H0	*	Hang up (on-hook) the modem or ISDN, same as 'ATH.
	H1		Off hook the modem.
In			Display inquired information.
	I0		Display numerical product code, same as 'ATI.'
	I1		Display product information and ROM checksum.
	I2		Display modem link status report.
	I12		Display physical layer status.
	I13		Display channel response for V.34
Ln	n=0-7		Speaker volume control. The higher the value, the higher the	S24.4-6
	4 *		volume.
Mn			Speaker control	S21.1-2
	M0		Speaker is always OFF.
	M1	*	Speaker is ON until carrier detected.
	M2		Speaker is always ON.
	M3		Speaker is ON after the last digit is dialed out Tone dialing is not
			heard.
Nn	n=0-7		Ring volume control. 'N0' will disable the audio ring function.	S24.1-3
	5 *
O			Return to on-line state.
O1			Force modem to request a retrain.
Qn			Result code displayed.	S23.7
	Q0	*	Modem returns result code.
	Q1		Modem does not return result code.
	Q2		Modem returns result code but quiet after answering on a RING.	S40.1
			(see also S42.2)
Sr.b=n			Set bit 'b' of S-register 'r' to value 'n'. 'n' is a binary digit '0' or '1'
Sr.b?			Display value of bit 'b' of S-register 'r'
Sr=n			Set S-register 'r' to value 'n'. 'n' must be a decimal number
			between 0 and 255.

4-2 Command Sets