Ozzietel offers an Out-of-plan Call Blocking feature for all of our accounts, which allows you to block and unblock out of plan calling. You'll never have to worry about unintended out of plan calls again. This feature also blocks unwanted Directory Assistance calls.
Easy Online Activation
Login to your Ozzietel Online Account
Click on "Features" tab from your Dashboard
Configure the "Out-of-plan Call Blocking" option as you would like.