Tone 3
•
When answering an external
sensor call
(Not available for KX-UT series SIP
phones)
•
After pressing TRANSFER or
Recall/hookswitch to hold a call
temporarily (e.g., Call Splitting)
•
While a called PS is being
searched
•
When Account Code Entry is
performed
•
When answering a Timed
Reminder call with no message
Tone 4
Message waiting indication was
received.
When you make calls
Busy Tone
Reorder Tone
The CO line you tried to seize is not
assigned or denied.
Ringback Tones
Tone 1
Tone 2
(Not available for KX-UT series SIP
phones)
Do Not Disturb (DND) Tone
(Not available for KX-UT series SIP
phones)
The dialed extension is refusing
incoming calls.
Document Version 2014-11
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5.4.1 Tone
Operating Manual
357