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4.3 Tone
144 User Manual
Tone 3
Before the following
features activate:
• Retrieving a held
call
• Picking up another
call
• Paging/Answering
a paging
announcement
• Answering the call
through a speaker
Tone 4
Establishing or leaving a
conference
Tone 5
A call has been put on hold.
1 s