Pantech A100 사용자 설명서

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82 
2. Access codes 
The following section describes various security codes used on your phone.   
 
PIN code (4 to 8 digits) 
The PIN (Personal Identification Number) code protects your SIM card 
against unauthorized use. The PIN code is usually supplied with the SIM 
card. If you input the incorrect PIN code entry three times in a row, the PIN 
code will be blocked. If the PIN code is blocked, you need to unblock the 
PIN code before you can use the SIM card again. See information on the 
PUK code. 
 
PIN2 code (4 to 8 digits) 
The PIN2 code, supplied with some SIM cards, is required to access some 
functions, such as call cost counters. 
 
Lock code   
The lock code can be used to lock the phone and keypad to avoid 
unauthorized use. 
 
NOTE: The factory setting for the lock code is 1234. To avoid 
unauthorized use of your phone, change the lock code. Keep the new 
code secret and in a safe place separate from your phone. 
 
PUK and PUK2 codes (8 digits) 
The PUK (Personal Unblocking Key) code is required to change a blocked 
PIN code. The PUK2 code is required to change a blocked PIN2 code. If 
the codes are not supplied with the SIM card, contact the operator whose 
SIM card is in your phone for the codes. 
You can change the following codes: lock code, PIN code, and PIN2 code. 
These codes can include the numbers from 0 to 9 only. 
 
NOTE: Avoid using access codes similar to emergency numbers such 
as 112, to prevent accidental dialling of an emergency number. 
 
Call Barring Password (4 digits)
 
The call barring password is required when you use the Call Barring 
function. You obtain the password from your service provider when you 
subscribe to this function. 
You can change this password using the Call barring function.  
(For further details, see Security Settings on page 66.)