en.Wedoany.com Reported - On May 18, Telefónica Germany (Telefónica Germany) has successfully migrated its first 100,000 mobile subscribers to its cloud-native IMS solution based on Amazon Web Services (AWS) for delivering 4G/5G voice services. This marks the first time a European mobile operator has deployed such capabilities for commercial subscribers in a public cloud environment. The migration milestone was achieved in the first quarter of 2026 and is part of Telefónica Germany's multi-year transformation project for its fixed and mobile IMS network.
The technical foundation for this migration is Mavenir's cloud-native IMS solution. The solution features a stateless, containerized microservices architecture, designed specifically for fully automated cloud environments. It can run on public, private, or hybrid clouds, simultaneously supporting VoLTE, VoNR, VoWi-Fi, and even direct satellite voice services on a unified IMS core network, ensuring voice continuity across 4G, 5G, and future networks.
The migration path follows a rigorous, phased rollout strategy. In February 2025, Mavenir and Telefónica Germany announced a multi-year contract extension, immediately initiating large-scale lab validation to prepare for migrating 4G/5G voice services within Germany from Mavenir's virtualized IMS to the cloud-native IMS platform. The first 100,000 subscriber migration was completed in Q1 2026, and both parties are jointly developing a comprehensive automation framework to simplify operational processes and accelerate the delivery of new features and updates. Within 2026, Mavenir expects to migrate the first millions of mobile subscribers to the new solution running on the AWS cloud, with the full migration planned for completion in 2027, deploying all sites through automation.
Matthias Sauder, Head of Technology & Unified Connectivity at Telefónica Germany, stated: "This milestone marks a critical phase in migrating our core network and communication workloads to public cloud infrastructure. Telefónica Germany's cloud strategy is built on a firm belief in agility, transparency, and advanced automation. The migration of mobile voice services to Mavenir's cloud-native IMS solution embodies our forward-looking vision that transcends traditional network models. Mavenir remains a trusted partner in delivering best-quality, future-proof services, and we look forward to jointly advancing the next phase of network evolution, pioneering new levels of efficiency and innovation, and creating new value for customers and operations."
Brandon Larson, Senior Vice President and General Manager of Cloud, AI & IMS Business Strategy at Mavenir, added: "We celebrate alongside Telefónica Germany the smooth migration of the first 100,000 customers to the IMS solution running on AWS. Visionary operators are embracing cloud technology to prepare for an AI-native, fully automated future, and this migration demonstrates Telefónica Germany's clear leadership in this process. Mavenir's cloud-native IMS provides the foundation for modernizing and future-proofing mobile voice services, achieving new levels of agility while unlocking AI-driven innovation and new monetization opportunities. Today's milestone is a significant step in Telefónica Germany's strategic shift towards cloud-native technology and a powerful validation of the continued trust in Mavenir as a partner for a new era of network cloudification and automation."
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