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Mn Monitor Speaker Mode
This command turns the speaker on or off.
M0: The speaker is off.
M1: The speaker is on until the modem detects the carrier signal (default).
M2: The speaker is always on when modem is off-hook.
M3: The speaker is on until the carrier is detected, except while dialing.
On Return On-line to Data Mode
O0: Instructs the modem to exit on-line command mode and return to data
mode (see AT Escape Sequence, +++).
O1: This command issues a retrain before returning to on-line data mode.
O3: This command issues a rate renegotiation before returning to on-line
data mode.
P Select Pulse Dialing
This command configures the modem for pulse (non-touch-tone) dialing. Dialed
digits are pulsed until a T command or dial modifier is received. Tone dial is the
default setting.
Qn Result Code Control
Result codes are informational messages sent from the modem and displayed on
your monitor. Basic result codes are OK, CONNECT, RING, NO CARRIER, and
ERROR. The ATQ command allows the user to turn result codes on or off.
Q0: Enables modem to send result codes to the computer (default).
Q1: Disables modem from sending result codes to the computer.
T Select Tone Dialing
This command instructs the modem to send DTMF tones while dialing. Dialed
digits are tone dialed until a P command or dial modifier is received. This is the
default setting.
Vn DCE Response Format
This command controls whether result codes (including call progress and negotia-
tion progress messages) are displayed as words or their numeric equivalents.
V0: Displays results as numbers.