Allow calls only to certain numbers
With the fixed dialling service, you can restrict calls, and only allow calls to certain phone numbers. For example, you can allow your children to call only family members or other key numbers.
Select Menu > Contacts and Options > SIM numbers > Fixed dial contacts .
Not all SIM cards support the fixed dialling service. You need your PIN2 code from your service provider.
Select Options > Activate fixed dialling . Enter the PIN2 code.
Select the people to whom calls are allowed
Select Options > New SIM contact .
Enter the PIN2 code.
Enter the contact name and phone number to which calls are allowed, and select Done. 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.