COURIER HIGH SPEED MODEMS
Mn
Monitor
(speaker) control.
0
MO
Speaker
always
OFF.
Ml
Speaker
ON
until
carrier is established (Default).
M2 Speaker
always
ON.
M3 Speaker
ON
after last digit
dialed
and
until
carrier is
established.
Return
online after
command
execution.
00
Return online (normal).
01
02
Return
online
and
retrain. Use if
there
were
errors
in
a
non-ARQ
data
transfer.
Return
online, initiate a 2400
bps
speed
shift,
and
drop
down
to 1200 bps. Applies
only
to calls
at
2400 bps,
and
may
be
used
if the
remote
modem
is a V .22
bis
modem
and
ATOl
didn't
work.
Used
mainly
for testing
purposes.
P Pulse dial (Default).
Qn
Quiet
mode: result codes
displayed/
suppressed.
DIP
switch
3 is
factory set for result code display.
QO
Result codes displayed.
Ql
Result codes
suppressed
(quiet).
Q2 Result codes
suppressed
in
Answer
mode.
Sr=n
Set S-Register value: r is
any
S-Register; n
must
be
a decimal
number
between
0
and
255.
Sr.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).
Sr?
Query
contents of register r.
T Tone dial.
Vn
Return
result codes in
words
or
numbers
(Verbal/Numeric
mode). DIP
switch
2 is factory set for
verbal
result
codes.
VO
Numeric
mode.
Vl
Verbal mode.
Xn Result
code
set options. Use
the
following table
(Default=
Xl,
Extended
set, codes 0-5, 10, 13, 18).
C-4 Command Summary
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