You are allowed up to five free test calls. Each call will only last 15 seconds but you will have the opportunity to see how the system works. When you sign up, you can also use one of our toll free lines to make calls. Currently only the US and Canada can be used for test calls. If you would like to test the system and you are an international customer, please email us at support@spoofmynumbers.com with your account name to get test credits.