Panasonic KX-NCP500 User Manual page 258

4.3.1 What is This Tone?
Reorder Tone
The outside line you tried to seize is
not assigned or denied.
Ringback Tones
Tone 1
Tone 2
Do Not Disturb (DND) Tone
The dialled extension is refusing
incoming calls.
While off-hook
Indication Tones
Tone 1
Call waiting tone
Tone 2
A call is on hold longer than the
specified time
When talking to an outside party
Warning Tone
This tone is sent 15, 10 and 5
seconds before the specified time for
disconnection.
When setting the features or programming
Confirmation Tones
258 User Manual
1 s
1 s
1 s
1 s
1 s
15 s
15 s