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

Command	Options	Function & Description	Ref.
	&D3	Same as &D2 but DTR OFF causes
		the modem to hang up and reset from
		profile 0.
&F		Load factory settings to RAM as
		active configuration.
&Gn		Guard tone options.	S28.4-5
	&G0 *	No guard tone (within USA,
		Canada).
	&G2	1800 Hz guard tone.
&Hn		Data flow control, DTE/DCE.	S27.3-5
	&H0	Flow control disabled.
	&H3 *	Hardware (CTS/RTS) flow control.
	&H4	Software (XON/XOFF) flow control.
&Jn		Type of Phone line.	S28.0
	&J0	Single phone line, RJ11.
	&J1	Multiple phone/modem line,
		RJ12/RJ13.
&Kn		Modem error control and data	S27.0-2
		compression.
	&K0	No error control.(Same as AT&K)
	&K1	MNP4 (See also S41.0).
	&K2	MNP4+MNP5 (See also S38.5,
		S41.0).
	&K3	V.42+MNP4.
	&K4 *	V.42+V.42bis, compatible with &K2
		(See also S38.5).
&Ln	&L0 *	Dial-up line.	S14.2-3
	&L1	2W leased line.
	&L2	4W leased line.
&Mn		Synchronous/asynchronous mode	S14.6-7
		selection.
	&M0 *	Asynchronous mode with data

84 AT Command Set Summaries