Multi-Tech Systems MT2834BLR, MT2834BR manual Modem AT Commands

Chapter 4 - Commands

4.1Modem AT Commands

AT commands are the means by which you, and your communications software, are able to communicate with and configure your modem. They enable you to establish, read, and modify parameters in addition to dialing. The following provides a summary and brief explanation of the AT commands recognized by the MT2834.

COMMAND:	AT
VALUES:	n/a
DEFAULT:	n/a
DESCRIPTION:	Attention Code that precedes most command strings
	except A/, A: and Escape Codes.
COMMAND:	Return
VALUES:	n/a
DEFAULT:	n/a
DESCRIPTION:	Pressing the RETURN key executes most commands.
COMMAND:	A
VALUES:	n/a
DEFAULT:	n/a
DESCRIPTION:	Answer call, even if no ring present.
COMMAND:	$
VALUES:	n/a
DEFAULT:	n/a
DESCRIPTION:	This symbol placed in dialing string enables the modem to
	detect AT&T's "call card" tones to access user's calling
	card to originate an on-line connection.
COMMAND:	A/
VALUES:	n/a
DEFAULT:	n/a
DESCRIPTION:	Repeat last command. (Do not precede this command with
	AT. Do not hit RETURN to execute).
COMMAND:	A:
VALUES:	n/a
DEFAULT:	n/a
DESCRIPTION:	Continuous redial (10 redials in DOC units) of last number
	until answered. (Not used on International Models).

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