Client overview Vodafone Ukraine is a leading mobile carrier in Ukraine with over 18.8 million subscribers. It has been on the market for more than 30 years, providing extensive coverage with 3G services available to more than 86% of the country and 4G reaching over 71%. Vodafone is known for its focus on delivering high-quality telecom services to a large and diverse audience.

Client Feedback “Telesens provided an adaptable solution that met our needs with agility. Their ability to handle complex infrastructure changes, while maintaining clear communication, has been instrumental in the success of this project.” – Iurii Potiienko, Senior Project Manager, Vodafone Ukraine

Business needs Vodafone Ukraine needed to modernize its Ring Back Tone (RBT) service to: Lower operational costs by reducing overheads in the implementation and deployment processes Transition to a new technology base using IP protocols, cloud deployment, and virtual networking Introduce new monetization features to enhance the RBT service’s revenue potential

What is RBT and how it works RBT (Ring Back Tone) is a Value-Added Service (VAS) that replaces the standard connection signal heard by callers with audio content, such as music, songs or messages. Instead of hearing a typical dial tone while waiting for the call to be answered, the caller hears a melody or personalized audio selected by the subscriber. The T-RBT solution not only provides a customizable experience for subscribers but also allows carriers like Vodafone to integrate additional services and content, opening up new business models and partnership opportunities.

RBT flow The subscriber activates the RBT service through a self-service portal, mobile app, or web interface. When a call is made, instead of a regular ring, the T-RBT system retrieves the chosen audio content. The system delivers the audio to the caller while processing the connection. The T-RBT system manages the entire transaction seamlessly, logging activity and allowing updates based on preferences. This creates a personalized user experience and also opens up opportunities for revenue generation through premium content offerings.

Challenges Vodafone’s existing RBT system faced several limitations. Scalability issues The legacy system couldn’t handle the growing subscriber base efficiently, causing bottlenecks. Manual processes The outdated infrastructure required manual management, which was inefficient and costly. Revenue limitation The system lacked features that could help Vodafone generate additional revenue through content monetization. Complex upgrading Moving to a cloud-based architecture and modern technology like IP protocols required a complete overhaul of the system.

Telesens solution We developed and implemented the T-RBT software package tailored to Vodafone’s needs. This solution modernized their RBT system, offering: Comprehensive software development We provided full back-end and front-end development services, ensuring a smooth transition to a modern platform. Open and extensible architecture The new system supports voice and audio services at a scalable level, easily integrating new technologies like IP protocols and cloud deployment. Customized experience Subscribers can personalize their RBT experience by choosing their own content (melodies, ringtones), which can be managed through a mobile app or web portal. Optimized network utilization The system reduces the number of abandoned calls, which helps make better use of network resources. New revenue streams The solution provides a platform for content providers to distribute their media, allowing Vodafone to create new business opportunities through partnerships and monetization. Technologies used ● Java, Spring for back-end architecture ● jOOQ for database integration ● MySQL Galera Cluster for robust database management ● Docker Swarm for scalable deployment and management of services ● Oracle EE and Red Hat Enterprise Linux for secure and efficient operations Project team ● Project manager ● Quality assurance specialists ● Back-end developers ● Front-end developers

System capabilities and opportunities it provides RBT capabilities: ● Storage of melodies; ● Storage of subscriber profiles (service status, personal library, playback rules); ● Organisation of RBT service management; ● Interaction with telecom operator systems. Service opportunities for operators: ● Integration with operator systems for service activation. ● Provision of Try & Buy services. ● Conducting Happy Hours. ● Connection of new content providers. ● Access control by content providers to the platform. ● Tariffication of using RBT service. ● Automatic SMS channel for customers’ requests. Service opportunities for subscribers: ● Traditional RBT (Ring Back Tone). ● Gift RBT. ● System RBT. ● RBT for an individual subscriber. ● RBT for a group of subscribers. ● Corporate RBT. ● Playing melodies depends on the day of the month, day of the week, and/or time of day. ● Automatic melody extension. Service control channels: ● SMS ● WEB ● IVR ● USSD ● Mobile App ● CRM ● Billing Types of downloadable content: Public content (uploaded by the content provider): ● separate melody (single content); ● melody package; ● music channel. Non-public content (uploaded by a subscriber or corporation): ● personal content; ● corporate content.

Impact 10+ million active RBT subscribers Our solution scaled to handle millions of users, seamlessly integrating with Vodafone’s existing infrastructure. 2+ million content units Subscribers now have access to a wide variety of ringtones and melodies. 25+ content providers Integrated on a single platform, allowing for easy distribution and management of content. 5 interfaces Managed through one cohesive solution, simplifying the system’s management and ensuring ease of use.

Key results Scalable solution Telesens delivered a scalable platform capable of future upgrades. This ensures that Vodafone can handle an increasing number of transactions and subscribers without compromising performance. Enhanced customer experience Subscribers can easily manage and personalize their RBTs through various interfaces, including mobile apps and web portals, improving user satisfaction and loyalty. Efficient operations The new system significantly reduced manual operations and streamlined the entire process, allowing for faster response times and improved resource utilization. Increased revenue By adding features for content monetization, Vodafone was able to create new business opportunities and boost revenue through strategic partnerships with content providers. Unlock the full potential of your RBT services Do you need a scalable and cost-efficient RBT solution? Contact Telesens today for a consultation and learn how we can optimize your telecom services and create new revenue opportunities.