Toshiba Satellite U200 PLUA0C-PT602E Users Manual Canada; English - Page 202

Troubleshooting Modem Refer to Appendix C, AT Commands and Appendix D, S-registers. Problem Procedure Communication Make sure the computer's internal modem software can't initialize settings are correct. Refer to Phone and Modem 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, AT Commands. You place a call, but a Make sure the settings are correct in your connection can't be communications application. made 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, AT Commands. 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, AT Commands. 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, S-registers. If problems persist, contact your dealer. 9-18 User's Manual