About fixed dialling
If you turn on fixed dialling, you can only make calls to contacts that appear in your fixed dialling list and to official emergency access numbers (for example, 999).
If your wireless service plan includes text messaging, you can also send text messages to contacts that appear in your fixed dialling list.
To use fixed dialling, your wireless service provider must set up your SIM card for this service and provide you with a SIM card PIN2 code. Depending on your wireless service provider and wireless network, this feature might not be supported.