The Online Charging System (OCS) is a dynamic and sophisticated platform that plays a pivotal role in modern telecommunications. It is a real-time charging and billing solution that enables service providers to accurately track, control, and monetize the usage of their services instantly. The OCS facilitates seamless integration between the network elements and the charging infrastructure, ensuring an uninterrupted flow of information and revenue management. With OCS, subscribers can access various services, and providers can adapt their offerings based on customer preferences, consumption patterns, and behavior, enhancing customer satisfaction and loyalty.