Sharp UX-600M - Manual (Page 102)

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.
Chapter 12 Troubleshooting
90