Cause 1 of 5: Fixed dialling is turned on
Fixed dialling allows you to select which numbers your phone can call and send messages to. When fixed dialling is turned on, you can only make calls and send messages to fixed numbers.
Solution: Turn off fixed dialling.
Press the Menu key.
Activate or deactivate
Press Fixed dial number to select On or Off.
Key in your PIN2 and press OK.
Press Disconnect to return to standby mode.