Multi-Tech Systems MT3334HD8 manual RAn

			E AT Command Summary
Command	Values	Description
&Rn	n = 0, 1, or 2	Clear to Send Control
		&R0	Let CTS state follow RTS state when online.
	*** &R1		Force CTS high (on).
		&R2	Let CTS drop on disconnect for time set by S24,
			then go high again.
&RAn	n = 0 or 1	Asymmetric Bit Rate
	***	&RA0 Enable asymmetric bit rate operation.
		&RA1 Disable asymmetric bit rate operation.
&RDn	n = 0 or 1	Square Wave Ring Detect
		&RD0 Full wave ring detect only.
	*** &RD1 Full wave and square wave ring detect.
&RFn	n = 0 or 1	CTS/RTS Interaction Control
		&RF0 Let CTS follow RTS.
	*** &RF1 Let CTS act independently.
&RN	n/a	Rate Renegotiation
		Forces the modem to renegotiate the data rate.
&RP	n/a	Immediate Line Probe
		Initiates a retrain that makes the modem read line
		probe information if %DP1 is selected. Valid only
		when online in V.34 mode.
&RR	n/a	Retrain
		Initiates an immediate retrain without a line probe
		reading.
$Rn	n = 0 or 1	Retransmit Count
	***	$R0 Disconnect after 12 retransmits.
		$R1 Do not disconnect after 12 retransmits.
Sr=n	r = 0–11, 13,	Set Register Value
	24, 25, 30,	Set value of S-register r to value of n, where n is
	32, 34, 36,	entered in decimal format.
	37, 43, 48, or
	94; n varies
Sr?	r = 0–11, 13,	Read Register Value
	24, 25, 30,	Read value of S-register r and display value in 3-digit
	32, 34, 36,	decimal form.
	37, 43, 48, or
	94
&Sn	n = 0, 1, or 2	Data Set Ready Control
		&S0	Force DSR high (on).
	*** &S1		Let DSR follow CD.
		&S2	DSR drops on disconnect for time set by S24,
			then goes high again.

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