Verykool i650 - Manual (Page 52)

The PIN code can prevent your SIM card from unapproved use. If the PIN code
is closed, you can open it to activate its protection. The phone will ask for the
PIN code next time the phone is turned on. If the PIN code is opened, you can
close it to deactivate its protection. You can also change the PIN code by
following the screen indication: input the previous PIN code, input the new PIN
code and input again.
*Note: The SIM card will be locked if the inputs of PIN codes are wrong for
three times. Then you need the PUK code to unlock the SIM card. The PIN
code and PUK code are supplied together. If not, please contact your network
supplier. The default PIN code is 1234; please change it into your personalized
password.
2 Fixed Dial: If activated, only the numbers set in the list or numbers started
with the digits in the list can be made. (Require the support of SIM card.)
Mode: open or close the function of Fixed Calls. (Need to input PIN2 code.)
- Fixed Calls List: input the fixed phone numbers into the list.
*Note: Open or close the function of Fixed Calls requires the input of PIN2
code. Please contact your network supplier for the PIN2 code. Enter Fix Calls;
numbers of fixed calls will appear in the directory.
3 Barred Dial: Contrary to Fixed Calls, you can restrict the calling of certain
numbers.
52