Panasonic KX-TA824 Operating Manual page 180

4.3 Tone List
When Making Calls
Busy Tone
Reorder Tone
The outside (CO) line you tried
to seize is not assigned or was
denied.
Ringback Tones
Single (3-s interval)
Double (3-s interval)
Single (5-s interval)
Double (5-s interval)
DND Tone
The dialed extension is
refusing incoming calls.
While Off-hook
Indication Tones
Tone 1 (Call Waiting Tone)
Tone 2 (Call Waiting Tone)
Single
Double
180 Operating Manual
1 s
1 s
1 s
1 s
1 s
1 s
1 s
1 s
1 s
15 s