ZyXEL Communications Comet 336P user manual AT Command Set Summaries, Basic AT Command Set

4	AT Command Set Summaries
Basic AT Command Set
Command		Options		Function & Description
A/				Re-execute the last command once
<any key>				Terminate current connection attempt when enter in handshaking state.
+++				Escape sequence code, entered in data state, wait for modem to return to
				command state.
All the Following Commands Require a “AT” Prefix
A				Go on-line in answer mode. (See also S39.2, S43.6)
Bn				Handshake option
		B0	*	Select CCITT V.22 for 1200 bps
		B1		Select Bell 212A for 1200 bps communication
Ds				Dial s (numbers and options) that follow (see also S38.0, S35.4). The
				options of s are listed as follows:
		0-9, #, *		Digits for dialing
		P		Pulse dialing
		T		Ton dialing
		,		Pause for a time specified in S8. Remaining digits will be dialed as in-band
				DTMF.
		;		Return to command state after dialing
		!		Hook flash
		@		Wait for a 5 second silence before proceeding
		R		Reverse handshake (go on-line in Answer mode)
		W		Wait for second dial tone. Remaining digits will be dialed as in-band DTMF
DL				Repeat last ATD command
DSn		n=0-3		Dial number stored in non-volatile RAM at location 'n'
En				Command mode local echo of keyboard commands
		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
Mn				Speaker control
		M0		Speaker always OFF
		M1	*	Speaker OFF during dialing
		M2		Speaker always ON
		M3		Speaker ON until CD is detected
O0				Return to on-line state
O1				Return to on-line state with forced retrain
Qn				Result code displayed
		Q0	*	Modem returns result code
		Q1		Modem does not return result code
		Q2		Modem returns result code but quiet after answering on a RING.
Sr=n				Set S-register 'r' to value 'n'. 'n' must be a decimal number between 0 and 255

AT Command Set Summaries 17