Panasonic KX-TDA15 - Manual (Page 215)

4.3 What is This Tone?
User Manual 215
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
1 s
1 s