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Modem, Modem -21 – Toshiba Satellite M40 (PSM40) User Manual

Page 167

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User’s Manual

9-21

Troubleshooting

Modem

Problem

Procedure

Communication

software can’t initialise

modem

Make sure the computer's internal modem

settings are correct. Refer to Phone and Modem

Options in the Control Panel.

You can hear a dial tone

but can’t make a call

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.

You place a call, but a

connection can’t be

made

Make sure the settings are correct in your

communications application.

After making a call you

can’t hear a ring

Make sure the tone or pulse selection in your

communications application is set correctly.
You can also use the ATD command.

Communication is cut

off unexpectedly

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.

A CONNECT display is

quickly replaced by NO

CARRIER

Check the error control setting in your

communications application.
You can also use the AT\N command.

Character display

becomes garbled

during a communication

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.

You cannot receive an

incoming call

Check the rings before auto answer setting in

your communications application.
You can also use the ATS0 command.
If problems persist, contact your dealer.