Multitech CC1600 Series, Owner'S Manual

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MT2834BLR Owner’s Manual
4.1 Modem 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 MT2834BLR.
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 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 in International Models.)
COMMAND: $An
VALUES: n = 0 or 1
DEFAULT: $A0
DESCRIPTION: $A0 discards data during auto-reliable time period.
$A1 buffers data during auto-reliable time period.