US Robotics Sportster Operating Instructions Manual page 136

remote system to your
screen.
F1 Local echo OFF.
Receiving system
may send a remote
echo of data it
receives.
Hn Controls ON/OFF hook.
H0 Hangs up (goes on
hook).
H1 Goes off hook.
In Displays the following
information.
I0 Four-digit product
code
I1 Results of ROM
checksum
132
T Q R
ECHNICAL UICK EFERENCE
Ln
Mn
I2 Results of RAM
checksum
I3 Product type
I4 Current modem
settings
I5 Nonvolatile memory
(NVRAM) settings
I6 Link diagnostics
I7 Product configuration
Controls speaker volume
(internals only).
L0 Low volume
L1 Low volume
L2 Medium volume
L3 High volume
Operates speaker.
M0 Speaker always OFF.