2-28 Troubleshooting
Table 2-22 Solving Modem Problems
Continued
Problem Probable Cause Recommended Action(s)
Ten-digit dialing does not
work correctly under
Windows 95 or later.
Ten-digit dialing doesn’t work
correctly under Windows 95 or
later, making it difficult to dial
numbers in a different area
code that are not long
distance calls.
Since Windows 95 or later does not limit the
number of digits you can enter in the Phone
Number field, set the Area Code field to
match your local area code. Then type the
ten-digit telephone number in the Phone
Number field.
Modem cable
disables/interferes with other
telephony devices (Germany,
Austria, and Switzerland only).
The modem cable does not
provide the additional 4-wire
connection required in
Germany, Austria, and
Switzerland to form the serial
pass-through necessary so
that other devices can work on
the same phone line.
To use another telephony device on the
same line in these countries, unplug the
modem cable from the wall jack first.
Modem does not dial correctly
under Windows 95 or later
(Switzerland and Germany
only).
The “Wait for dial tone before
dialing” check box is checked.
This causes Windows 95 or
later to issue an ATDT;
command. A typical dial string
would look like this:
ATDT;
ATDTnnn-nnnn
In Germany and Switzerland,
the ‘;’ dial modifier is not
permitted to be used in this
fashion by regulatory agencies
since ATDT; takes the modem
off-hook without dialing.
Therefore, the modem returns
an error message when
attempting to dial. The error
message reads:
“The computer is not receiving
a response from the modem.
Check that the modem is
plugged in, and if necessary,
turn the modem off, then turn
it back on.”
1. Click Start ⇒ Settings ⇒ Control Panel.
2. Double-click the Modems icon.
3. Click the Properties button.
4. Select the Connection tab.
5. Click the “Wait for dial tone before
dialing” check box to clear it.
6. Click OK ⇒ Close.
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