Sharp UX-D50 - Manual (Page 136)

Messages and Signals
134
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.
all.book Page 134 Monday, September 1, 2003 3:46 PM