Multi-Tech Systems MT5600BL Monitor Speaker Volume, Monitor Speaker Mode, Modulation Handshake

		4 AT Commands, S-Registers, and Result Codes
Command:	Ln		Monitor Speaker Volume
Values:			n = 0, 1, 2, or 3
Default:		1
Description:	L0		Select low volume.
	L1		Select low volume.
	L2		Select medium volume.
	L3		Select high volume.
Command:	Mn		Monitor Speaker Mode
Values:			n = 0, 1, 2, or 3
Default:		1
Description: M0 Speaker is always off.
	M1		Speaker is on until the carrier signal is detected.
	M2		Speaker is always on when the modem is off-hook.
	M3		Speaker is off when receiving carrier and during dialing, but
			on during answering.
Command:	Nn		Modulation Handshake
Values:			n = 0 or 1
Default:		1
Description:	N0 Disables automode. The modem attempts a handshake at the
			speed set by S37 or, if S37=0, at the most recently sensed serial
			port speed.
	N1		Enables automode. The modem attempts a handshake at the
			speed set by S37 or, if S37=0, at the highest possible speed.
			During the handshake, fallback to a lower speed can occur.
			Note: Setting the N command automatically sets the <automode>
			parameter of the +MS command. N and S37 are provided only
			for compatibility with existing software. +MS is the recom-
			mended command.
Command:	On		Return Online to Data Mode
Values:			0 or 1
Default:		None
Description:	O0 Exit online command mode and return to online data mode
			without a retrain. Normally used after a +++ escape (see
			+++AT<CR> escape sequence).
	O1		Exit online command mode and return to online data mode
			after a retrain.
Command:	P		Pulse Dialing
Values:			P, T
Default:			T
Description:			Forces pulse (non-touch-tone) dialing until a T command or T
			dial modifier is received.
Command:	Qn		Result Codes Enable/Disable
Values:			n = 0 or 1
Default:		0
Description:	Q0		Enable result codes.
	Q1		Disable result codes.

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