Sharp UX-510 Operation Manual page 57

How the hookup operates
While you are out, all of your incoming calls will be answered by your answer-
ing machine and its outgoing message will play. Voice callers can leave a mes-
sage. During this time, your fax machine will quietly monitor the line. If your
fax machine detects a fax tone or a duration of silence equal to four seconds
(called "Quiet Detect Time"), it will take over the line and begin reception.
Your fax machine listens for a duration of silence because some transmitting ma-
chines do not send a fax tone when the fax is sent manually (this means that the
person faxing uses the handset to dial and then presses their Start key after listen-
ing to your outgoing message). Pressing the Start key in this case causes the line
to go silent. The timing for fax reception is shown below.
0 sec.
Fax machine
rings
Answering machine
answers
Testing for proper operation
If needed, test the operation of the hookup as follows.
1
Call your fax machine from an outside phone line. Cover the
mouthpiece to ensure that no sounds are transmitted to the fax
machine.
2
Your should hear your outgoing message, the beep to leave a
message, and then a fax tone four seconds later (four seconds
is the initial Quiet Detect Time setting). If you hear a fax tone,
the hookup is operating properly.
3
If the line is disconnected before you hear a fax tone, lower the
Quiet Detect Time setting to three seconds and then call your
fax machine again.
Chapter 7
Outgoing message
(10 sec. max)
Sender presses
start key
(Line goes silent)
Answering Machine Hookup
10 sec.
14 sec.
Quiet Detect Time
(Initial setting: 4 sec.)
Fax reception
begins
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