About fixed dialing
If you turn on fixed dialing, you can only make calls to contacts that appear in your fixed dialing list and to official emergency access numbers (for example, 911 or 112).
If your wireless service plan includes SMS text messaging, you can also send SMS text messages to contacts that appear in your fixed dialing list.
To use fixed dialing, 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.