US Robotics 005687-03 Reference Manual page 8

Ln Controls speaker volume
(internals only).
L0 Low volume
L1 Low volume
L2 Medium volume
L3 High volume
Mn Operates speaker.
M0 Speaker always OFF.
M1 Speaker ON until
CONNECT.
M2 Speaker always ON.
M3 Speaker ON after dial,
until CONNECT.
On Returns online.
O0 Returns online.
O1 Returns online and
retrains.
8
T Q R
ECHNICAL UICK EFERENCE
P
Qn
Sets pulse dial (for phone
lines that don't support
touch-tone dialing).
Displays/suppresses result
codes.
Q0 Displays result codes.
Q1 Quiet mode; no result
codes.
Q2 Displays result codes
only in Originate
mode.