Telefonica Germany Migrates First Mobile Customers to Mavenir IMS on AWS

Key Takeaways

• 100,000 customers migrated to Mavenir IMS on AWS
• Migration targets several million users by year‑end
• Full migration expected to complete in 2023
• Contract extension enables shift from vIMS to cloud‑native
• Cloud‑native IMS promises lower costs and faster service innovation

Pulse Analysis

The telecommunications sector has been rapidly embracing cloud‑native architectures to replace legacy voice cores that were built on proprietary hardware. Cloud‑native IP Multimedia Subsystem (IMS) platforms allow operators to run voice, video, and messaging services as software‑defined workloads, scaling on demand and integrating seamlessly with 5G radio access networks. Vendors such as Mavenir have packaged these capabilities on public clouds, with Amazon Web Services emerging as a preferred infrastructure partner because of its global reach, security certifications, and pay‑as‑you‑go pricing model. This shift aligns with the broader move toward network function virtualization and open‑RAN ecosystems.

Telefonica Germany’s decision to migrate its first 100,000 mobile subscribers to Mavenir’s IMS on AWS represents a concrete step in that transformation. By moving 4G and 5G voice services to a cloud‑native stack, the operator can consolidate multiple legacy nodes, cut down on capex, and introduce new features—such as AI‑driven call routing—much faster. The AWS environment provides elastic compute and storage, enabling the IMS to handle peak traffic without over‑provisioning. Moreover, the extended contract signed in February gives Mavenir a clear runway to transition several million users before the end of the calendar year.

The rollout signals a tipping point for European carriers that have been cautious about public‑cloud adoption due to regulatory and latency concerns. As Telefonica Germany demonstrates operational stability and cost efficiencies, competitors are likely to accelerate similar cloud‑native migrations, potentially reshaping the continent’s voice market. Investors will watch the migration’s impact on EBITDA margins and on the speed of 5G service monetization. In the longer term, the success of this partnership could encourage more telco‑cloud collaborations, driving innovation in edge computing, IoT connectivity, and unified communications as‑a‑service.