Panasonic HYBRID IP-PBX KX-TDA30 - Manual (Page 220)

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