Sharp UX-CD600 Operation Manual page 39

Disabling line 2 (line 2 invalid setting)
If you have only connected one line to the machine, follow the steps below to
disable line 2. This will make it impossible to select line 2 when making a call
or sending a fax, thereby preventing accidental selection of the line.
1
FUNCTION
Press
the machine.
2
Press once and
3
Press once.
4
Press to select YES (disable line
2), or press
line 2).
5 STOP
Press
once and once on
once.
to select NO (enable
to return to the date and time display.
Line Settings
Display:
OPTION SETTING
LINE 2 INVALID
LINE 2 INVALID
1=YES, 2=NO
The display briefly shows
your selection, then:
NUMBER OF RING
37