4.3 Tone
166 User Manual
When you make calls
Tone 2
Any one of the following features is
set:
• Absent Message
• Background Music
• Call Forwarding
• Call Pickup Deny
• Call Waiting
• Do Not Disturb
• Extension Dial Lock
• Executive Busy Override
Deny
• Hot Line
• Timed Reminder
Tone 3
• 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
• When answering an external
sensor call
Tone 4
Message waiting indication was
received.
Busy Tone
Reorder Tone
The CO line you tried to seize is not
assigned or denied.
Ringback Tone 1
1 s
1 s
1 s
1 s
1 s
1 s