ZyXEL Communications U-336R/RE Options, Function & Description, AT Command Set Summaries

Command	Options		Function & Description	Ref.
	I12		Display physical layer status.
Ln	n=0-7		Speaker volume control. The higher	S24.4-6
	4 *		the value, the higher the volume.
Mn			Speaker control.	S21.1-2
	M0		Speaker always OFF.
	M1	*	Speaker ON until call is answered.
	M2		Speaker always ON.
	M3		Speaker ON after the last digit is
			dialed out and OFF when carrier is
			detected.
Nn	n=0-7		Ring volume control.'N0' will	S24.0-2
	5 *		disable the audio ring function.
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	S40.1
			after answering on a RING (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.
Sr?			Display value stored in S-register 'r'.
T			Ton dial.	S23.1
UPX			Download firmware to the Flash
			EPROM by using Xmodem
			protocol.

AT Command Set Summaries 79