Telecom Billing solutions include a wide array of activities ranging from the process of usage tracking for voice and data, aggregating, levying charges upon respective tariffs, generating invoices to the customers, enabling the customer relationship management through the various cloud based solutions on public, private, or hybrid cloud by the vendor (Operations Support Systems/Business Support System (OSS/BSS) provider) for various Mobile Network Operators (MNOs) all enabled by multi-tenancy.