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4.2 Tones/Ring Tones
266 Feature Guide
Single (5-s interval)
Double (5-s interval)
DND Tone
The dialled extension is
refusing incoming calls.
Call Waiting Tone 1
Call Waiting Tone 2
Single
Double
Triple
Hold Alarm Tone
A call has been on hold for
longer than the specified time.
Warning Tone (Outside
(CO) Line Call Limitation)
This tone is sent 15 seconds
before the specified time for
disconnection.
Confirmation Tone 1
The feature was set
successfully, or the Extension
Lock feature was set or
cancelled.
1 s
1 s
1 s
15 s
1 s
1 s
1 s
15 s
1 s
1 s