4.3 Identifying Tones
User Manual
151
When Going Off-hook
Dial Tones
Tone 1
Normal
Tone 2
Any of the following features is
set:
•
Absent Message
•
Background Music
(BGM) (proprietary
telephone [PT] only)
•
Call Forwarding
(FWD)
•
Call Pickup Deny
•
Data Line Security
•
Do Not Disturb (DND)
•
Extension Lock
•
Hot Line (single line
telephone [SLT] only)
•
Message Waiting (PT
only)
•
Remote Extension
Lock
•
Timed Reminder
Tone 3
•
When going off-hook
with an SLT that has
messages waiting
•
When Account Code
Entry is performed
•
When answering a
call from Timed
Reminder
Tone 4
A new voice message has
been received (Built-in Voice
Message [BV]).
Tone 5
The remaining voice message
recording time is less than 5
minutes (Built-in Voice
Message [BV]).
1 s