3Com 005687-03 Manual page 101

NOTE:
ATZ4 or AT&F1 are often
the best reset strings, as they
restore hardware flow control
defaults.
PROBLEM:
Your screen keeps displaying
random garbage characters.
Diagnosis:
You could have a conflict with the remote
modem's settings for word length, parity, and
stop bits.
T O
ROUBLESHOOTING AND
H R
NLINE ELP ESOURCES
Possible Solution:
Set your modem's word length, parity, and
stop bits the same as the remote modem or
BBS you are calling.
Diagnosis:
Your software and modem might not be set
to the same flow control settings.
Possible Solution:
Make sure the software and modem have the
same flow control settings (hardware
[RTS/CTS] and software [xon/xoff]). .
Diagnosis:
The best flow control settings might not be
enabled on your modem.
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