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9-23
T
ROUBLESHOOTING
Modem
Refer to the online help files for Appendix C and D.
Problem Procedure
Communication Make sure the computer’s internal modem
software can’t settings are correct. Refer to
Phone and Modem
initialize modem Properties in the Control Panel.
You can hear a dial If the call is going through a PBX machine, make
tone but can’t make sure the communication application’s tone dial
a call detection feature is disabled.
You can also use the ATX command. Refer to the
online help files for Appendix C, AT Commands.
You place a call, Make sure the settings are correct in your
but a connection communications application.
can’t be made
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
the online help files for Appendix C, AT Com-
mands.
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
the online help files for Appendix C, AT Com-
mands.
Hardware and system checklist