TROUBLESHOOTING

User's Manual

After making a call

Make sure the tone or pulse selection in your

you can’t hear a ring

communications application is set correctly.

 

You can also use the ATD command. Refer to

 

Appendix C, AT Commands.

 

 

Communication is

The computer will automatically cut off

cut off unexpectedly

communication when connection with the carrier

 

is not successful for 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

 

Appendix C, AT Commands.

 

 

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

 

Appendix D, S-registers.

 

If problems persist, contact your dealer.

 

 

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