Sharp UX-P200 - Manual (Page 65)

Messages and Signals
63
8. T
roub
le-
s
hooting
Audible signals
Continuous tone 3 seconds Indicates the end of transmission,
reception, or copying.
Intermittent tone
(3 beeps) 5 seconds
(1 second on, 1
second off) Indicates incomplete transmission,
reception, or copying.
Rapid intermittent
tone 35 seconds
(0.7 seconds on,
0.3 seconds off) Indicates that the handset is off hook.