Fortumo Hosted Direct Carrier Billing solution has been engineered in a way that you have plenty of flexibility for deciding what type of information are you interested in receiving during the payment session. While initializing every payment session, you can specify different callback URLs to which we will be making you requests with different content. All dates that are included in the callback notifications are in UTC. Based on these requests you will be providing your consumers service that they have paid or subscribed for.
All callbacks Fortumo makes your server are made securely using HTTP over SSL. '