Samsung SGH-S307SSACIN - Manual (Page 46)

Phone Settings
86
SIM Lock (Menu 4.6.5)
When the SIM Lock feature is enabled, your phone
only works with the current SIM. You must enter
the SIM lock code.
Once you have entered the lock code, you are
asked to confirm it by entering it again.
To unlock the SIM, you must enter the SIM lock
code.
FDN Mode (Menu 4.6.6)
The FDN (Fixed Dial Number) mode, if supported by
your SIM card, allows you to restrict your outgoing
calls to a limited set of phone numbers.
The following options are available:
Disable: you can phone any number.
Enable: you can only call phone numbers stored in
Phonebook. You must enter your PIN2.
Note: Not all SIM cards have a PIN2. If your SIM card
does not, this menu option does not display.
To change your PIN2, see the Change PIN2 menu
option (Menu 4.6.7) below.
Change PIN2 (Menu 4.6.7)
The Change PIN2 feature allows you to change your
current PIN2 to a new one. You must enter the
current PIN2 before you can specify a new one.
Once you have entered a new PIN2, you are asked
to confirm it by entering it again.
Note: Not all SIM cards have a PIN2. If your SIM card
does not, this menu option does not display.
Phone Settings
87
Display Settings
(Menu 4.7)
Contrast (Menu 4.7.1)
This option allows you to adjust the contrast of the
display screens to see them better in different
lighting conditions.
To adjust the display contrast:
1. Select the required display, Main LCD or Front
LCD, and press the Select soft key.
2. Adjust the contrast using the and keys
or the and keys on the left side of the
phone.
3. When you are satisfied, press the OK soft key to
save the selection.
Back Light (Menu 4.7.2)
You can select whether or not the phone uses the
backlight. A marginal increase in standby/talk time
can be achieved by turning the backlight off.
Select the length of time for which the backlight is
on. 15 seconds, 30 seconds, 1 minute, 3
minutes and 10 minutes are available. The
backlight turns on when you press a key or receive
a call or message and remains for the specified
length of time. Then the display dims and finally
turns off after one minute to conserve your battery
power.
If you do not want to use the backlight, select OFF.