Multi-Tech Systems MT2834ZPX owner manual $Fn

	Chapter 4 - AT Commands, S-Registers and Result Codes
COMMAND:	$Fn
VALUES:	n = 0 or 1
DEFAULT:	$F1
DESCRIPTION:
	$F0 selects do not fall back to normal
	connect if CR received.
	$F1 selects fall back to normal connect if CR received.
COMMAND:	&Gn
VALUES:	n = 0, 1 or 2
DEFAULT:	&G0
DESCRIPTION:
	&G0 turns off CCITT guard tones.
	&G1 turns on CCITT 550 Hz guard tone.
	&G2 turns on CCITT 1800 Hz guard tone.
	(Not used in International models.)
COMMAND:	Hn
VALUES:	n = 0 or 1
DEFAULT:	n/a
DESCRIPTION:
	H0 selects Hang Up (go on hook).
	H1 selects Go Off Hook.
COMMAND:	$Hn
VALUES:	n = 1 thru 3
DEFAULT:	Read Only Command
DESCRIPTION:
	$H1 selects Help Screen #1.
	$H2 selects Help Screen #2.
	$H3 selects Help Screen #3.
COMMAND:	In
VALUES:	n = 0,1, 2, 3 or 5
DEFAULT:	Read Only Command
DESCRIPTION:
	I0 requests modem ID #.
	I1 requests firmware revision #.
	I2 for Model of modem.
	I3 MTS internal use.
	I5 outputs DSP version.

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