ZyXEL Communications U-336R/RE manual Extended AT& Command Set, Output Parameter, Options

Output Parameter	Output Value Description
	Carrier Lost	On-Line (Not
		disconnected)
	Resent Expiration	Protocol Error
	Break Time-out	DTR Dropped
	Carrier Lost 1	Carrier Lost 2 (Remote
	(No handshaking	hang-up, busy tone)
	response)	Keyboard Abort
	Security check	Inactivity.
	ATH command
	D/V hang up.

Extended AT& Command Set

Command	Options	Function & Description	Ref.
&Bn		Data rate, terminal-to-modem.	S28.6
		(DTE/DCE)
	&B0	DTE rate follows connection rate.
		(See also S44.6)
	&B1 *	DTE/DCE rate fixed at DTE setting
		(See also S18, S20, and S44.6)
&Cn		Carrier Detect (CD) options.	S21.4
	&C0	CD always ON (See also S42.7).
	&C1 *	CD tracks presence of carrier (See
		also S38.3, S42.7).
&Dn		Data Terminal Ready (DTR) options.	S21.6-7
		(See also S25)
	&D0	Ignore DTR signal, assume DTR is
		always ON.
	&D1	108.1, DTR OFF-ON transition
		causes dial of the default number.
		(See also 'AT*Dn' and S48.4)
	&D2 *	108.2, Data Terminal Ready, DTR
		OFF causes the modem to hang up.

AT Command Set Summaries 83