3Com 3C900B Installation And Operating Instructions Manual page 95

PROBLEM
The modem won't go off
hook to dial or doesn't
answer the phone (cont.)
Both modems exchange
carrier signals but fail to
establish a link.
Your 33.6 kbps modem
cannot achieve a 33.6 kbps
Internet connection.
T
ROUBLESHOOTING AND
DIAGNOSIS
If you have voice mail,
your dial tone may be
altered when messages are
waiting.
Your software may not
have auto answer enabled.
You may have a poor line
connection.
There may be line splitters
or other devices between
your modem and the
phone jack.
The phone line you are
currently using may not be
clean enough to achieve a
33.6 kbps connection.
O H R
NLINE ELP ESOURCES
POSSIBLE SOLUTION
Answer your voice mail to restore your normal dial tone.
Enable the auto answer feature. In RapidComm's Terminal mode,
type ATS0=1 and press ENTER. NOTE: You need to enable auto
answer before every session unless you alter your software's
initialization string to permanently enable auto answer.
Try placing the call again. The phone company routes calls
differently each time. To verify a valid phone connection, enter
RapidComm's Terminal mode and type ATX3DT18479825092
and press ENTER (the phone number is the 3Com BBS). This
string bypasses the dial tone, allowing a connection if the modem
is functioning properly.
Remove all devices between the modem and the phone jack it is
using. Make sure the phone cord you are using is no longer than
12 feet in length. Use the phone cord included with your
Sportster if possible.
Try using a different phone line. Make sure the phone line you
are using is an analog phone line. Using a digital phone line will
damage your modem.
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