Toshiba M40 Guia Do Utilizador

User’s Manual

9-21

Troubleshooting

Modem

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.