Sharp UX-A1000 Operation Manual page 37

Number of rings in TAD mode (Toll Saver function)
The number of rings on which the machine answers incoming calls in TAD
mode depends on whether the Toll Saver function is turned on, and if it is on,
whether you have messages.
♦
The Toll Saver function is initially turned on.
No received messages
NOTHING
4 Rings
Toll Saver
ON
Received messages
Hello!
2 Rings
To turn off the Toll Saver
function, see page 48.
Operating the Answering System
Toll Saver
(Answer according to
NUMBER OF RINGS setting)
To adjust the NUMBER
OF RINGS setting, see
page 78.
OFF
35