Technical Insights: A Comparative Assessment of TETRA vs. LTE-Based PPDR Networks

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Voice communications are fundamental to emergency services' day-to-day work. When seconds matter, responders need a system they can trust without hesitation. Airwave was designed specifically for mission-critical voice. That means reliability, priority access and security are built into the system from the outset.

Airwave's world-leading mission-critical communications service over the last decade (2016-2026):

• 3.4 billion calls: The total volume of mission-critical voice connections facilitated.
• 930,869 calls per day: The average daily load across the U.K.
• 38,786 calls per hour: A constant operational drumbeat.
• 741,000 emergency button activations: The 'red button' remains the ultimate safety tool.
• Every 7 minutes: The average interval at which an emergency worker in distress relies on the network to clear the path for a life-saving call.
• 3,652 days of achievement: The network hit or exceeded the gold-standard 99.5% availability threshold every day for a decade.

As mission critical communications evolve, understanding the technical and operational differences between established TETRA and emerging LTE-based platforms is critical for frontline resilience.