Troubleshooting; Troubleshooting Guide; Care And Maintenance - NEC AT-55 User Manual

TROUBLESHOOTING

Troubleshooting Guide

Problem
No dial tone /Will not dial out
Phone does not ring
Cannot be heard by the other party
Cannot use one-touch dialing

Care and Maintenance

To keep your telephone working well and looking good, follow these few simple guidelines.
 Avoid putting the telephone near heating appliances and devices that generate electrical
noise.
 The telephone should not be exposed directly to sunlight or moisture.
 Avoid dropping the handset and other rough treatment.
 Clean the telephone using a soft cloth moistened with a mild cleaning solution. Remove all
traces of the cleaner with a damp cloth.
 Never use cleaners containing alcohol, strong cleaners that may corrode plastic, or abrasive
powders, as this may damage the finish.
 Check that the hook switch is not depressed.
 Check that the line cord is connected.
 Make sure the SPEAKER key LED is lit (if using speakerphone).
 Ensure that the Dialing Mode Switch is set to the correct position.
 Unplug the phone, wait 30 seconds, then plug the phone back in.
 Ensure there are no other devices connected to the same line.
 Confirm phone cord and handset curly cord are securely plugged
in.
 Make sure MUTE key LED is off.
 Make sure that a number has been correctly stored in the one-
touch key.
 A row of "-" indicates an empty one-touch key.
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TROUBLESHOOTING
Solution