Samsung SGH-I257ZKAATT - Manual (Page 81)

Call Functions 74
Using Fixed Dialing Numbers
To turn FDN on:
1. From the Home screen, touch Phone ➔
Menu ➔ Call settings ➔ Additional settings
➔ Fixed dialing numbers.
2. Touch Turn on FDN.
3. At the prompt, enter your PIN2 code and touch OK.
FDN is turned on.
To turn FDN off:
1. Touch Turn off FDN.
2. At the prompt, enter your PIN2 code and touch OK.
FDN is turned off.
Important! Not all SIM cards use a PIN2 code. If your SIM
card does not, this menu does not display.
The PIN2 code is provided by your carrier.
Entering an incorrect PIN2 code could cause the
phone to lock. Contact customer service for
assistance.
Changing the PIN2 Code
To change the PIN2 code:
1. From the Home screen, touch Phone ➔
Menu ➔ Call settings ➔ Additional settings
➔ Fixed dialing numbers.
2. Touch Change PIN2.
3. At the prompt, enter your old PIN2 code.
4. At the prompt, enter a new PIN2 code.
5. Confirm your PIN2 code.