3Com 3C900B Installation And Operating Instructions Manual page 122

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.
P Sets pulse dial (for phone
lines that don't support
touch-tone dialing).
Qn Displays/suppresses result
codes.
Q0 Displays result codes.
118
T Q R
ECHNICAL UICK EFERENCE
Sr.b=n Sets bit .b of register r to n
Sr=n
Sr?
S$
T
Vn
Q1 Quiet mode; no result
codes.
Q2 Displays result codes
only in Originate mode.
(0/OFF or 1/ON).
Sets register r to n.
Displays contents of S-
Register r.
Displays a list of the S-
Registers.
Sets tone dial.
Displays verbal/numeric
result codes.
V0 Numeric codes
V1 Verbal codes