It is an easy going pricing model, where your cost remains unchanged for all the networks/countries. Means, per SMS cost will remain the same. You simply create few packages with sending volume, number of contacts allowed, number of Sender-IDs allowed etc. And your clients simply subscribe to one of the package they find suitable. These kind of packages mostly suit to the providers that offer service in certain region/country, where per SMS cost doesn’t make significant difference across different networks.