Panasonic KX-NT400

Making and Receiving Calls
Issue Possible Cause & Solution Reference
I cannot make calls.
• The service for your telephone is turned off in the connected
PBX.
→ If the sub-display on the Calls screen or the Feature
Key screen (in Call List mode) is blank, the service status
for your telephone is turned off in the PBX. Consult your
administrator to change the service status.
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• The phone number was entered incorrectly.
→ Confirm that you have entered the phone number of the
other party correctly.
→ Consult your administrator.
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• The screen was changed during a programming operation.
Under some conditions, changing the screen without exiting
programming mode can cause the KX-NT400 to not be able
to make and receive calls. This problem can occur when
programming the telephone via the Calls screen, the Feature
Key screen (in Call List mode), or the Programming screen.
→ Wait a while for programming mode to exit automatically.
—
I cannot redial by selecting
an entry in a call log.
• The number you are trying to redial is too long.
→ If the dialed number contains more than 32 digits for an
internal call, it cannot be redialed correctly.
—
I cannot make long
distance calls.
• Your telephone service does not allow you to make long
distance calls.
→ Make sure that you have subscribed to your telephone
company’s long distance service.
—
• If the KX-NT400 is connected to a PBX, your extension may
not be configured to make long distance phone calls.
→ Contact your administrator.
—
The KX-NT400 does not
ring when a call is
received.
• The ringer is turned off.
→ Press (UP) while a call is being received, or change the
ringer volume setting.
Page 58
I cannot make an outside
call using the One-touch
dialing button or speed
dialing.
• A line access number was not stored.
→ On the Dial Modification Settings screen, enter the line
access number in the Additional No. to Add: setting.
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While talking to an outside
party, the line is
disconnected.
• The time limit has run out.
→ Consult your dealer to extend the time limit, if necessary.
—
Redialing does not
function.
• The stored number was more than 32 digits or was an
extension number.
Page 66
I cannot send a call waiting
tone to the dialed
extension.
• The other party has not set the Call Waiting feature.
• The other party has set Data Line Security.
—
Document Version 2010-01 Operating Instructions 185
Appendix