Modem - Toshiba Portege M100 User Manual

Modem

Problem
Communication
software can't
initialise modem
You can hear a dial
tone but can't make
a call
You place a call, but
a connection can't
be made
After making a call
you can't hear a ring
Communication is
cut off unexpectedly
A CONNECT display
is quickly replaced
by NO CARRIER
Character display
becomes garbled
during a
communication
You cannot receive
an incoming call
Portégé M100
Procedure
Make sure the computer's internal modem
settings are correct. Refer to Modem Properties
in the Control Panel.
If the call is going through a PBX machine, make
sure the communication application's tone dial
detection feature is disabled.
You can also use the ATX command.
Make sure the settings are correct in your
communications application.
Make sure the tone or pulse selection in your
communications application is set correctly.
You can also use the ATD command.
The computer will automatically cut off
communication when connection with the carrier
is not successful for a set time interval. Try
lengthening this time interval.
Check the error control setting in your
communications application.
You can also use the AT\N command.
In data transmission, make sure the parity bit
and stop bit settings correspond with those of
the remote computer.
Check the flow control and communication
protocol.
Check the rings before auto answer setting in
your communications application.
You can also use the ATS0 command.
If problems persist, contact your dealer.
Troubleshooting
9-16