Sharp UX-465L Operation Manual page 90

Distinctive Ring (Requires Subscription to Service)
4
Set the reception mode to FAX.
RECEPTION
MODE
Important:
Distinctive ring will only work in
FAX mode. You must set the
reception mode of your fax
machine to FAX.
When your designated fax number
is dialed, your fax will automatically
answer and begin reception after
two rings. Other devices on the
same line will also ring until your
fax answers. If one of your other
numbers is dialed, the fax will ring;
however, it will not answer.
88
TEL FAX
TAD