Samsung SGH-T249DABTMB - Manual (Page 100)

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Check PIN code
When the Check PIN code feature is enabled, you must enter your PIN each time you switch on the phone.
Consequently, any person who does not have your PIN cannot use your phone without your approval.
Note: Before enabling or disabling the PIN Check feature, you must enter your PIN.
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.