Panasonic KX-TEB308 User Manual page 144

4.3 Identifying Tones
Double (5-s interval)
DND Tone
The dialled extension is
refusing incoming calls.
While Off-hook
Indication Tones
Tone 1 (Call Waiting Tone)
Tone 2 (Call Waiting Tone)
Single
Double
Triple
Tone 3 (Hold Alarm Tone)
A call has been on hold for
longer than the specified time.
When Talking to an Outside Party
Warning Tone
This tone is sent 15 seconds
before the specified time for
disconnection.
When Setting the Features or Programming
Confirmation Tones
Tone 1
The feature was set
successfully, or the Extension
Lock feature was set or
cancelled.
144 User Manual
1 s
1 s
1 s
1 s
1 s
1 s
1 s
15 s
15 s