USRobotics V.34 - Manual (Page 129)

COURIER HIGH SPEED MODEMS
Alphabetical Command Summary C-7
M n Speaker (audio monitor).
M0 The speaker is always OFF.
M1 The speaker is ON until carrier is established (Default).
M2 The speaker is always ON, including during data
transfer.
M3 The speaker is ON after the last digit is dialed and
remains ON until carrier is established.
O n If DIP switch 9 is ON (on detection of the escape code the
modem maintains the connection), you can issue commands
and then toggle the modem back online with the O
n command.
There are two ways to return online.
ATO0 Return online (normal).
ATO1 Return online and retrain. Use to have the modem re-
synchronize if there were errors in a non-ARQ data
transfer.
Q n Enable/suppress the display of result codes. The Courier is
shipped with DIP switch 3 ON, to display result codes. Use the
Q
n command to control the display for a current session,
independently of the switch setting.
Q0 Result codes displayed.
Q1 Result codes suppressed (quiet).
Q2 Result codes suppressed in Answer mode.
S r=n Set S-Register value: r is any S-Register; n must be a decimal
number between 0 and 255.
S r.b=n Alternative command for setting bit-mapped registers: r is the
bit-mapped register; . b is the bit; n is 0 (off) or 1 (on).
S r? Query contents of register r.
V n Return result codes in words or numbers (Verbal/Numeric
mode).
V0 Numeric mode.
V1 Verbal mode.