Services Providers can offer WS Billing as their Billing Solution.
If you need a strong Billing-Engine to help support your Resellers bill the services that you provide, you can simply write your own data interface (keeping, of course, your IP rights) or commission us to and offer this as a total reseller solution to your resellers.
Resellers Write Their Own Data Interfaces
Services resellers are also able to write their own data interfaces for any platform they may wish. They may then, if they so choose, offer these to the open market.