Technics MT5634SMI-92, MT5634SMI-34 manual AT Commands, S-Registers, and Result Codes

			Chapter 5 – AT Commands, S-Registers, and Result Codes
Command:	&Dn	Data Terminal Ready (DTR) Control
Values:		n = 0, 1, 2, or 3
Default:		2
Description:		&D0	Modem ignores the true status of the DTR signal and responds as if it is always on.
		&D1	If DTR drops while in online data mode, the modem enters command mode, issues
			an OK, and remains connected.
		&D2	If DTR drops while in online data mode, the modem hangs up. If the signal is not
			present, the modem will not answer or dial.
		&D3	If DTR drops, the modem hangs up and resets as if an ATZ command were issued.
Command:	&En	XON/XOFF Pacing Control
Values:		n = 12 or 13
Default:		12
Description:		&E12	Disables XON/XOFF pacing.
		&E13	Enables XON/XOFF pacing.
Command:	&Fn	Load Factory Settings
Values:		n = 0
Default:		None
Description:		&F0	Load factory settings as active configuration.
		Note: See also the Z command.
Command:	&Gn	V.22bis Guard Tone Control
Values:		n = 0, 1, or 2
Default:		0
Description:		&G0	Disable guard tone.
		&G1	Set guard tone to 550 Hz.
		&G2	Set guard tone to 1800 Hz.

Note: The &G command is not used in North America.

Command:	&Kn	Flow Control Selection
Values:		n = 0, 3, or 4
Defaults:		3
Description:		&K0	Disable flow control.
		&K3	Enable CTS/RTS hardware flow control.
		&K4	Enable XON/XOFF software flow control.

Command:	&Ln	Leased Line Operation
Values:		n = 0, 1, or 2
Defaults:		0
Description:		&L0	The modem is set for standard dial-up operation.
		&L1	The modem is set for leased line operation in originate mode.
		&L2	The modem is set for leased line operation in answer mode.
		Note: For &L1 and &L2, there is a 30-second window between power up and the starting of
			the leased line handshake. During this time, you can turn off the command, if desired.
Command:	&Pn	Pulse Dial Make-to-Break Ratio Selection
Values:		n = 0, 1, or 2
Default:		0
Description:		&P0	60/40 make-to-break ratio
		&P1	67/33 make-to-break ratio
		&P2	20 pulses per second
		Note: The &P2 command is available only if the country code is set to Japan.
Command:	&Qn	Asynchronous Communications Mode
Values:		n = 0, 5, 6, 8, or 9
Default:		5
Description:		&Q0	Asynchronous with data buffering. Same as \N0.
		&Q5	Error control with data buffering. Same as \N3.
		&Q6	Asynchronous with data buffering. Same as \N0.
		&Q8	MNP error control mode. If MNP error control is not established, the modem falls back
			according to the setting in S36.
		&Q9	V.42 or MNP error control mode. If neither error control is established, the modem
			falls back according to the setting in S36.

SocketModem Global MT5634SMI Developer’s Guide 28