A free spoof call can be obtained from a variety of different sources around the internet. Typically the provider, such as spoofcard, will give you a free call for a few minutes so that you can verify that the service works. After that, the provider intent is that you will really enjoy the service and sign up for a subscription.
This is actually brilliant marketing, as it gives the consumer a taste of the usefulness of the product, which leaves them wanting more. Most customers do end up taking on a subscription to the service once they see that it does in fact work as advertised.
Try before you buy is definitely a win win for both the service and the consumer in most cases, and when you’d like to try it out with a free spoof call, this is no exception.