Black Box MD403A DS=y Dial Stored Telephone Number, Echo Command Mode Characters, Hook Control

CHAPTER 4: AT Commands, S-Registers, and Result Codes

Command:	DS=y	Dial Stored Telephone Number
Values:		n=0–1
Default:		none
Description:		Dial a number previously stored in directory
		number y by the &Zy=x command.
		Example: ATDS=1
Command:	En	Echo Command Mode Characters
Values:		n=0 or 1
Default:		1
Description:	E0	Do not echo keyboard input to the terminal.
	E1	Do echo keyboard input to the terminal.
Command:	Fn	Echo Online Data Characters
Values:		n=1
Default:		1
Description:	F0	Enable online data character echo. (Not
		supported.)
	F1	Disable online data character echo (included for
		backward compatibility with some software).
Command:	Hn	Hook Control
Values:		n=0 or 1
Default:		0
Description:	H0	Go on-hook (hang up).
	H1	Go off-hook (make the phone line busy).
Command:	In	Information Request
Values:		n=0–5, 9, 11
Default:		None
Description:	I0	Display default speed and controller firmware
		version.
	I1	Calculate and display ROM checksum (for example,
		12AB).
	I2	Check ROM and verify the checksum, displaying
		OK or ERROR.
	I3	Display default speed and controller firmware
		version.
	I4	Display firmware version for data pump
		(for example, 94).
	I5	Display the board ID: software version, hardware
		version, and country ID.

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