Viettel creates a cutting-edge, future-proof online charging system
About Viettel
Viettel is Vietnam’s largest telecommunications provider, owned by the country’s Ministry of Defense. The company operates across 11 countries, including many underserved and remote regions, offering a diverse array of services from traditional mobile and broadcast telecom to utilities like electric and water billing. As Viettel expanded its reach and diversified its offerings, it required a high-performance, scalable data infrastructure that could support millions of users, a broad spectrum of services, and future innovations in 5G and IoT.
Transforming telecom billing and customer engagement
To support millions of diverse users and combat high churn, Viettel needed to radically modernize its online charging system (OCS).
Rising churn and demand for personalization
Viettel faced a rising threat of customer churn due to increased competition and changing expectations. Customers demanded personalized, flexible services and better digital experiences.
Rapid growth across underserved regions
Viettel serves regions with limited infrastructure. Its services include not just telecom, but also payments, utilities, and transportation systems. Supporting these diverse use cases required a converged, scalable charging solution.
Multi-device and hybrid services complexity
As family households adopted more devices, Viettel needed to support shared and hybrid service bundles with the ability to personalize and scale these services seamlessly.
Data volume and service agility challenges
With over 170 million subscribers and exponential service growth, Viettel required a future-ready platform that could maintain sub-millisecond latency while handling 60,000 transactions per second and scaling toward 400 million users.
A personalized, containerized charging platform powered by Aerospike
Viettel selected Aerospike to power its next-generation OCS, which now supports a vast range of telecom and non-telecom digital services at massive scale.
In-memory configuration for peak performance
Aerospike was deployed in memory, delivering exceptional performance with nearly 100 percent uptime and simplifying scaling across countries and user segments.
Customer 360 and DIY personalization
Viettel introduced customizable service packages where customers define their own attributes, select services, and manage payment methods, dramatically improving customer engagement and satisfaction.
Containerized architecture with sub-millisecond performance at scale
Using Aerospike’s Hybrid Memory Architecture (HMA) and a containerized microservices framework, Viettel achieved over 60,000 TPS with sub-millisecond latency, along with rapid, reliable deployment across geographies.
Seamless integration with digital ecosystems
The OCS now enables billing for diverse services such as mobile wallets, healthcare, utilities, and toll roads—positioning Viettel as a digital transformation leader across Southeast Asia.
A scalable, award winning transformation in less than six months
In under six months, Viettel launched a high-availability platform that is transforming digital services across 11 countries.
170 million users served, scalable to 400 million
Aerospike empowers Viettel to scale its OCS to over 400 million users across multiple geographies and industries.
99.999 percent reliability with 40 percent TCO savings
The migration from Oracle TimesTen to Aerospike reduced total cost of ownership by 40 percent while delivering five-nines availability.
Sub-millisecond latency and 60,000 transactions per second
The new platform achieves exceptional performance with sub-millisecond latency and throughput exceeding 60,000 transactions per second for reads and writes.
Global recognition for innovation and digital impact
Viettel’s platform earned honors like the Gold Stevie and Most Innovative IT Service awards.
Testimonials
The OCS, enabled by Aerospike's unique technology, is designed for convergence of traditional telecom system communication services like broadcast, television and mobile to a new environment that includes services, capabilities and business support.
Quan Nguyen-Hoang
ViettelTechnical Leader for OCSAerospike showed us nearly perfect uptime and saved us not only on cost, but also significantly reduced development effort.
Quan Nguyen-Hoang
ViettelTechnical Leader for OCSAdditional resources
For a deeper understanding and more insights, explore these additional resources.
Get started with Aerospike
For high-performance, scalable data management and ultra-low latency, ideal for handling massive datasets and real-time applications.
Viettel creates a cutting-edge, future-proof online charging system
About Viettel
Viettel is Vietnam’s largest telecommunications provider, owned by the country’s Ministry of Defense. The company operates across 11 countries, including many underserved and remote regions, offering a diverse array of services from traditional mobile and broadcast telecom to utilities like electric and water billing. As Viettel expanded its reach and diversified its offerings, it required a high-performance, scalable data infrastructure that could support millions of users, a broad spectrum of services, and future innovations in 5G and IoT.
Transforming telecom billing and customer engagement
To support millions of diverse users and combat high churn, Viettel needed to radically modernize its online charging system (OCS).
Rising churn and demand for personalization
Viettel faced a rising threat of customer churn due to increased competition and changing expectations. Customers demanded personalized, flexible services and better digital experiences.
Rapid growth across underserved regions
Viettel serves regions with limited infrastructure. Its services include not just telecom, but also payments, utilities, and transportation systems. Supporting these diverse use cases required a converged, scalable charging solution.
Multi-device and hybrid services complexity
As family households adopted more devices, Viettel needed to support shared and hybrid service bundles with the ability to personalize and scale these services seamlessly.
Data volume and service agility challenges
With over 170 million subscribers and exponential service growth, Viettel required a future-ready platform that could maintain sub-millisecond latency while handling 60,000 transactions per second and scaling toward 400 million users.
A personalized, containerized charging platform powered by Aerospike
Viettel selected Aerospike to power its next-generation OCS, which now supports a vast range of telecom and non-telecom digital services at massive scale.
In-memory configuration for peak performance
Aerospike was deployed in memory, delivering exceptional performance with nearly 100 percent uptime and simplifying scaling across countries and user segments.
Customer 360 and DIY personalization
Viettel introduced customizable service packages where customers define their own attributes, select services, and manage payment methods, dramatically improving customer engagement and satisfaction.
Containerized architecture with sub-millisecond performance at scale
Using Aerospike’s Hybrid Memory Architecture (HMA) and a containerized microservices framework, Viettel achieved over 60,000 TPS with sub-millisecond latency, along with rapid, reliable deployment across geographies.
Seamless integration with digital ecosystems
The OCS now enables billing for diverse services such as mobile wallets, healthcare, utilities, and toll roads—positioning Viettel as a digital transformation leader across Southeast Asia.
A scalable, award winning transformation in less than six months
In under six months, Viettel launched a high-availability platform that is transforming digital services across 11 countries.
170 million users served, scalable to 400 million
Aerospike empowers Viettel to scale its OCS to over 400 million users across multiple geographies and industries.
99.999 percent reliability with 40 percent TCO savings
The migration from Oracle TimesTen to Aerospike reduced total cost of ownership by 40 percent while delivering five-nines availability.
Sub-millisecond latency and 60,000 transactions per second
The new platform achieves exceptional performance with sub-millisecond latency and throughput exceeding 60,000 transactions per second for reads and writes.
Global recognition for innovation and digital impact
Viettel’s platform earned honors like the Gold Stevie and Most Innovative IT Service awards.
Testimonials
The OCS, enabled by Aerospike's unique technology, is designed for convergence of traditional telecom system communication services like broadcast, television and mobile to a new environment that includes services, capabilities and business support.
Quan Nguyen-Hoang
ViettelTechnical Leader for OCSAerospike showed us nearly perfect uptime and saved us not only on cost, but also significantly reduced development effort.
Quan Nguyen-Hoang
ViettelTechnical Leader for OCSAdditional resources
For a deeper understanding and more insights, explore these additional resources.
Get started with Aerospike
For high-performance, scalable data management and ultra-low latency, ideal for handling massive datasets and real-time applications.