Panasonic KX-TD500 User Manual page 233

5.4 What is This Tone?
Tone 2
• The feature setting was
completed successfully.
• Before paging through an
external speaker
• The new setting is same as
the previous setting by
personal programming.
Tone 3
Before performing the following
features:
• Retrieving a held call
• Picking up another call
• Paging/Answering a
paged annoucement
• Answering the call
through a speaker
Tone 4
Establishing or leaving a three-
party conversation
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Appendix