How to fix NEC Telephone when I cannot be heard?
If you cannot be heard when using your NEC Telephone, ensure that both the phone cord and the handset curly cord are securely plugged in. Also, check to make sure the MUTE key LED is off.
Why is my NEC Telephone not ringing?
If your NEC Telephone is not ringing, ensure that there are no other devices connected to the same line.
How to troubleshoot one-touch dialing on NEC AT-55P?
If you cannot use one-touch dialing on your NEC Telephone, first ensure that a number has been correctly stored in the one-touch key. A row of “-“ indicates an empty one-touch key.
What to do if my NEC AT-55P Telephone will not dial out?
If your NEC Telephone will not dial out, check that the hook switch is not depressed and that the line cord is properly connected. If using speakerphone, ensure the SPEAKER key LED is lit. Also, make sure the Dialing Mode Switch is set to the correct position. As a last resort, unplug the phone, wait 30 seconds, then plug it back in.
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