This document is a technical report detailing Comarch's OSS and BSS products designed for telecommunications companies. It outlines how these products assist telcos in transforming their operations to enhance efficiency, reduce costs, and improve customer experiences. The report includes specific implementation scopes for various telecom operators worldwide, such as Telekom Deutschland, T-Mobile, and Vodafone, highlighting the diverse applications of Comarch's solutions. For instance, it describes the end-to-end service view provided to Telekom Deutschland and the convergent billing system implemented for T-Mobile. Additionally, the report discusses the integration of Comarch's products in supporting network planning and fault management for operators like Telefónica and Orange. The document emphasizes the comprehensive nature of Comarch's offerings, which aim to streamline business processes and facilitate the introduction of innovative services in the telecom sector.