Panasonic KX-TEM824 Features Manual page 261

4.2 Tones/Ring Tones
Dial Tone 5
1 s
The remaining voice message
recording time is less than 5
minutes or 125 voice
messages have been
recorded (Built-in Voice
Message [BV]).
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 dialled extension is
refusing incoming calls.
Call Waiting Tone 1
15 s
Call Waiting Tone 2
1 s
Single
Double
Feature Guide 261