5-9
T
ROUBLESHOOTING
You place a call,
Make sure the settings are correct in your
but a connection
communications application.
can’t be made
After making a call,
Make sure the tone or pulse selection in your
you don’t hear a ring
communications application is set correctly.
You can also use the ATD command. Refer to
the material on AT commands in the computer's
user manual or online Help.
Communication is
The computer will automatically cut off
cut off unexpectedly
communication when connection with the carrier
is not successful within a set time interval. Try
lengthening this time interval.
A
CONNECT
display
Check the error control setting in your
is quickly replaced by
communications application.
NO CARRIER
You can also use the AT\N command. Refer to
the material on AT commands in the computer's
user manual or online Help.
Character display
In data transmission, make sure the parity bit
becomes garbled
and stop bit settings correspond with those
during a
of the remote computer.
communication
Check the flow control and communication
protocol.
You cannot receive
Check the rings before auto answer setting in
an incoming call
your communications application.
You can also use the ATS0 command. Refer to
the material on S-registers in the computer's user
manual or online Help.
If problems persist, contact your dealer.
Hardware checklist
