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Appendix
278 User Manual
When going off-hook [BX], [NZ], [RU], [AG], [SA]
Ring Tone 2 / Hold Recall
Tone
• An outside call is ringing.
• An outside call is held for
more than a specified time
(default: 60 seconds).
Ring Tone 3
• A doorphone call is ringing.
• The pre-set alarm time has
arrived (Timed Reminder).
Ring Tone 4
• 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).
Dial Tone 1
Normal (No features stated in
Dial Tone 2 through 4 are set.)
1 s
<
PT
>
<
SLT
>
1 s
<
PT
>
1 s
<
SLT
>
1 s
< PT >
1 s
< SLT >
1 s
1 s