subject: A Short Understanding of Telecom Billing OSS [print this page] Even though OSS has changed a lot since those days, it is highly expensive to maintain and is considered to be too expansive. One of the main goals that the telecom industry has is to eventually create a smaller OSS. The goal would be for it to be more organized, less costly, and much smaller than the current version available. There is always research trying to promote the production of a better system.