US Robotics Sportster Operating Instructions Manual page 108

PROBLEM DIAGNOSIS
Your modem The modem you're trying to
won't connect with could be an
connect at older model that doesn't
2400 bps with support error control.
a 2400 bps
modem.
You could have a conflict
with the remote modem's
settings for word length,
parity, and stop bits.
Your screen
Your software and modem
keeps
might not be set to the same
displaying
flow control settings.
random
garbage The best flow control settings
characters. might not be enabled on your
modem.
104
T O
ROUBLESHOOTING AND NLINE
POSSIBLE SOLUTION
You can disable error control on your modem by typing AT&M0 in
terminal mode and pressing ENTER. Now try placing the call to the remote
modem again. When finished, reset your modem to enable the error
control features. In terminal mode, type ATZ and press ENTER. Note:
ATZ4 or AT&F1 are often the best reset strings, as they restore hardware
flow control defaults.
Set your modem's word length, parity, and stop bits the same as the
remote modem or BBS you are calling.
Make sure the software and modem have the same flow control settings
(hardware [RTS/CTS] and software [xon/xoff]).
In terminal mode, type AT&F1 and press ENTER to load the optimal
settings.
H R
ELP ESOURCES