Toshiba PSLB8U-027025 User Manual - Page 137
Problem, Procedure, CONNECT, NO CARRIER
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L300/L300D series Modem Problem Procedure Communication software can't initialize 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 Make sure the tone or pulse selection in your can't hear a ring communications application is set correctly. 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 an incoming call your communications application. You can also use the ATS0 command. If problems persist, contact your dealer. User's Manual 9-13
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