Panasonic kx-td816ne Operating Guide

Page of 252
6.4
What is This Tone?
244
Appendix
When you make calls
While off-hooking
Tone 3
The alarm is being 
answered.
Enter an account code to 
turn off the tone.
Tone 4
A call waiting indication was 
received.
Busy Tone
CCBS Tone
The called party on an ISDN 
line is busy.
Reorder Tone
The outside line you tried 
to seize is not assigned or 
denied.
The wrong account code 
was entered.
Ringback Tone
Do Not Disturb Tone
The dialled extension is 
refusing incoming calls.
Indication Tones
Tone 1
Call waiting tone (default)
1 s
15 s