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Dec 04, 2025 | Press release

Ericsson leads Europe’s first major IMS/VoLTE integration for future-proof railway communications

Ericsson and Swiss national rail operator SBB (Schweizerische Bundesbahnen) have successfully delivered Europe’s first live integration of the legacy railway communications system GSM-R with an advanced IP Multimedia Subsystem (IMS) platform with Voice over LTE (VoLTE) service.

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Communication service providers

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Enabling advanced 5G capabilities, network slicing, orchestration, and AI-driven tools for superior connectivity and tailored solutions to unlock new revenue streams.

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Unlocking growth with communications and connectivity solutions that combine 5G, AI, and cloud for enhanced productivity, scalability, and resilience.

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We empower the public sector through high-performing, secure, reliable and resilient connectivity that drive digital transformation for government and mission-critical industries. Together, let's create a future where intelligent networks empower a safer world.

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Case studies

Nov 03, 2025 | Case study

AT&T: A bold vision for programmable networks

Through its Open Radio Access Network (Open RAN) transformation, AT&T has laid the foundation for an open, disaggregated, and programmable network. This will accelerate innovation and significant network automation, delivering capabilities such as differentiated connectivity.

From telephones to 6G and beyond, shaping communication for almost 150 years with 60,000 patents and sustainable solutions in 180+ countries worldwide.