US Robotics 33600 User Manual page 31

If your PC reacts as
though you are
online, but no call
has been initiated or
received.
If double characters
are displayed on
your screen
(Example: AATT).
If both modems
exchange carrier
signals but fail to
establish a data
communications
link.
Sportster Winmodem 33600 & x2/56K - User's manual
Check that modem's Carrier Detect
(CD) signaling is set correctly. (See
in the Commands chapter.) You
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may need to review the manual that
came with your communication
software to see what CD operation your
software requires. If you are not using
the communication software that came
with the modem, you may need to
change the CD setting. Check the
manual that came with the software.
Both your modem and your
communications software's local echo
features are on. Turn one off by going
into terminal mode (your
communications software should let
you switch to terminal mode) and:
1. Typing (the last character is zero)
ATE0
2. And then pressing the
Place the call again. You may have had
a bad phone line or a bad connection.
The telephone company routes all
calls, even local calls, differently each
time you call.
Call a different modem to see if the
problem persists.
The remote modem might be an older
2400 bps modem that does not support
error control. Disable error control by
going into terminal mode (your
communications software should let
you switch to terminal mode) and:
1. Typing
AT&M0
zero)
2. And then pressing the
3. Typing followed by the telephone
ATDT
number
4. And then pressing the
key
ENTER
(the last character is
key.
ENTER
key.
ENTER
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