5.4 What is This Tone?
While on-hook [SA]
Ring Tone 1 / Hold Recall
Tone
<PT>
•
An intercom call is
ringing.
•
An intercom call is held
for more than a specified
time (default: 60
seconds).
Ring Tone 2 / Hold Recall
Tone
<PT>
•
An outside call is
ringing.
•
An outside call is held for
more than a specified
time (default: 60
seconds).
Ring Tone 3
<PT>
•
A doorphone call is
ringing.
•
The pre-set alarm time
has arrived (Timed
Reminder).
Ring Tone 4
<PT>
•
A reserved outside line
or extension became
idle
(Automatic Callback
Busy).
•
A caller is leaving a
message in your
mailbox (Live Call
Screening-Private
mode).
272
1 s
1 s
1 s
1 s
Appendix