Toshiba TECRA S3 User Manual

9-18

User’s Manual

Troubleshooting

Modem

Refer to Appendix C, 

 and Appendix D, 

. 

Communication 
software can’t initialize 
modem

Make sure the computer’s internal modem 
settings are correct. Refer to Phone and Modem 
Properties 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. Refer to 
Appendix C, 

.

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. Refer to 
Appendix C, 

.

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. Refer to 
Appendix C, 

.

Character display 
becomes garbled 
during a 
communication 
session

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. Refer to 
Appendix D, 

.

If problems persist, contact your dealer.