Samsung t139 - Manual (Page 60)

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The following options are available:
– Disable : the phone connects directly to the network when you switch
it on.
– Enable : you must enter the PIN each time the phone is switched on.
Change PIN code
This feature allows you to change your current PIN, provided that
the PIN check feature is enabled. You must enter the current PIN
before you can specify a new one.
Once you have entered a new PIN, you are asked to confirm it by
entering it again.
Set FDN mode
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 call any number.
– Enable : you can only call phone numbers stored in Phonebook. You
must enter your PIN2. You can obtain your PIN2 from T-Mobile’s
customer service.
Change PIN2 code
The Change PIN2 feature allows you to change your current PIN2
to a new one. You must first enter the current PIN2 (obtained
from T-Mobile) 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 does not display.
Reset
From this menu you can reset your phone and sound settings to
the default settings.
The following options are available:
• All: Phone, Display, and Sound are returned to default values.
• Sound settings: only sound settings are returned to default values.
• Display settings: only display settings are returned to default values.
• Phone settings: only phone settings are returned to default values.
To reset your settings:
1. From Idle mode, touch Menu ➔ Settings ➔ Phone settings
➔ Security ➔ Reset. Your options display.
2. Press the Check soft key to select settings to reset.