T
ECHNICAL
R
EFERENCE
Basic Data Commands
8-5
E
n
Sets local echo.
E0
Echo OFF
E1
Modem displays keyboard commands
F
n
Sets online local echo of transmitted data
ON/OFF.
F0
Local echo ON. Modem sends a copy of the
data it sends to the remote system to your
screen.
F1
Local echo OFF. Receiving system may send a
remote echo of data it receives.
H
n
Controls ON/OFF hook.
H0
Hangs up (goes on hook).
H1
Goes off hook.
I
n
Displays the following information.
I0
Four-digit product code
I1
Results of ROM checksum
I2
Results of RAM checksum
I3
Product type
I4
Current modem settings
I5
Nonvolatile memory (NVRAM) settings
I6
Link diagnostics
I7
Product configuration
I9
Plug and Play information
I11
Extended link diagnostics
L
n
Controls speaker volume (internals only).
L0
Low volume
L1
Low volume
L2
Medium volume
L3
High volume
M
n
Operates speaker.
M0
Speaker always OFF.
M1
Speaker ON until CONNECT.
M2
Speaker always ON.
M3
Speaker ON after dial, until CONNECT.
O
n
Returns online.
O0
Returns online.
O1
Returns online and retrains.
P
Sets pulse dial (for phone lines that don’t support
touch-tone dialing).
Q
n
Displays/suppresses result codes.
Q0
Displays result codes.
Q1
Quiet mode; no result codes.
Q2
Displays result codes only in
Originate mode.
S
r
=
n
Sets register
r
to
n
.
S
r
?
Displays contents of
S-Register
r
.
S$
Displays a list of the S-Registers.
T
Sets tone dial.
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