Vision 2040: The enduring role of TETRA in mission‑critical communications

TETRA continues to be a globally trusted platform for mission-critical voice, offering unmatched reliability, security and performance.

As critical communications environments evolve, TETRA will coexist within hybrid ecosystems, integrating seamlessly with broadband technologies to deliver resilient, secure and efficient mission-critical communications for decades to come.

Over the last 25 years, TETRA (Terrestrial Trunked Radio) has become synonymous with reliability. It remains an established benchmark for mission-critical voice and the global gold standard against which all future technologies will continue to be measured. Worldwide, governments, operators and enterprises are sharing a clear message as they plan operational strategies extending into the 2035–2040 horizon: TETRA remains essential.

This continued confidence is reflected in ongoing TETRA investments, sustained revenue growth, and even new nationwide deployments. Organisations across public safety, transport, utilities and industrial sectors continue to rely on TETRA because it delivers:

• a dependable cost-effective communications solution
• ultra-low latency and guaranteed group voice communications
• exceptional resilience in crisis conditions
• proven Direct Mode Operation (DMO) where network coverage does not exist
• predictable, trusted behaviour in the hands of frontline professionals.

Long-term investment and operational confidence

TETRA is expected to remain the global cornerstone for mission-critical voice services through 2040 and beyond. Many networks have guaranteed operational lifetimes extending into the 2035–2040 timeframe, including major national programs. In parallel, new networks continue to be procured and rolled out, including Denmark’s national public safety network and a major expansion of Italy’s public safety system, along with numerous commercial deployments worldwide. These are substantial long-term investments, with typical lifecycles of 15 to 20 years. In many areas of the world where broadband spectrum is unavailable or not economically viable, TETRA will always be required to provide a robust and reliable communications solution.

While there is a clear global trend towards hybrid LTE and TETRA communications, TETRA remains as the dependable voice layer, while broadband technology augments data capabilities.

The reality of the migration to LTE and why hybrid communications are the practical path forward

Many organisations are planning a path towards broadband-enabled Mission Critical Services (MCX). This evolution is both necessary and positive, but it is also a long-term journey that extends well into the 2030s. Migration at this scale cannot be rushed: it must be safe, carefully coordinated, and fully aligned with operational reality.

For this reason, hybrid communication — combining TETRA and 5G — is not a temporary workaround. For many organisations, it represents the operating model of the 2030s. Across Europe, public safety programs expect extended periods of dual operation of TETRA and MCX to safeguard continuity, interoperability and resilience. Hybrid timelines of more than five years are typical as countries validate the nationwide coverage, priority and pre-emption, and off-network capabilities required for mission-critical broadband.

Hybrid devices, workflows and infrastructure are set to define the next decade as organisations adopt broadband capabilities at a controlled pace while still relying on TETRA as the trusted backbone for mission-critical voice.

Device-to-device (D2D) communications: proven operational resilience

Public safety operations demand unbroken, guaranteed communication, even when infrastructure fails, making device-to-device (D2D) communication a mandatory capability in public safety and many mission-critical operations worldwide.

TETRA delivers deterministic, group-centric voice with Direct Mode Operation (DMO), enabling true off-network operation, the gold standard for incident response, rural coverage and in-building resilience. While alternative 3GPP Sidelink approaches continue to develop, they are still maturing and are not yet certain to work, with further standards development and spectrum allocation still required. They are unlikely to be commercially available for device suppliers to start to create products before 2030. Until then, TETRA DMO remains the dependable and proven solution, which will persist even after TETRA networks are switched off, to provide a D2D service.

Security for the next era

The security and threat landscape continues to evolve, shaped by increasingly sophisticated tools, nation-state actors, and the emerging impact of quantum computing. TETRA rises to address these challenges through a robust security framework that provides exceptional levels of protection, safeguarding privacy and ensuring the secure transmission of sensitive information. With quantum-safe algorithms built into the standard, TETRA continues to support the highest levels of security, both now and in the future, helping organisations maintain trust and operational confidence as threat environments change.

A proven, evolving technology for mission-critical communications

TETRA has developed into a mature, robust and dependable technology, underpinned by a broad and competitive supplier ecosystem. It continues to evolve in response to user needs and expectations, particularly in the area of data communications. As networks grow, the TETRA standard continues to be refined to enhance capability while maintaining the consistent, reliable performance that mission-critical users depend on.

As the mission-critical communications landscape continues to evolve, TETRA stands firm as the trusted and resilient foundation on which the next generation of hybrid capabilities will be built. Its proven performance, security and operational certainty enable organisations to navigate the migration decade with confidence, adopting new broadband innovations while maintaining the dependable voice communications that they rely on every day.

With ongoing investment, continuous innovation and a clear global commitment to its long-term role, TETRA remains essential in supporting those who safeguard our communities and keep vital services running, today and well into 2040 and beyond.

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