You can allow calls only to family members or other key phone numbers, and block all other phone numbers.
Select > Contacts and > SIM numbers > Fixed dialling numbers.
Not all SIM cards support the fixed dialling service. You need your PIN2 code from your service provider.
|Activate fixed dialling|
Select > Activate fixed dialling. Enter the PIN2 code.
Select the people to whom calls are allowed
Select > New SIM contact.
Enter the PIN2 code.
Enter the contact name and phone number to which calls are allowed, and select .
To add a contact from the contacts list to the fixed dialling list, select > Add from Contacts and a contact.
To send a text message to a SIM contact while the fixed dialling service is active, you need to add the text message centre number to the fixed dialling list.