Indra Group to transform Geneva and Zurich sites with an advanced digital Voice over IP communication system

Awarded by Skyguide, Switzerland’s air navigation service provider, the company will deliver the full design, integration, and deployment of the advanced GAREX 300 communication system at two of Switzerland's most important sites
Indra Group’s most advanced digital Voice over IP communication system in the world enables highly reliable operations and communications between air traffic controllers and pilots
Indra Group will deploy 247 operational controller working positions, combining production systems, testing and training environments within an integrated model designed for low-risk implementation, facilitating a smoother transition and seamless operations from day one
Indra Group strengthens its global leadership in Air Traffic Management (ATM) by modernising the communications system for Skyguide, Switzerland’s air navigation service provider, at Geneva and Zurich sites, two of the country’s most important aviation hubs.
This strategic contract positions Indra Group as a key partner in the technological evolution of Swiss airspace, delivering a fully digital Voice over IP (VoIP) communication system based on state-of-the-art technology designed to enhance the reliability of controller–pilot voice communications while improving safety, operational efficiency, and system availability.
The project includes the full design, integration and deployment of the advanced GAREX 300 communication system, specifically designed for critical environments such as Area Control Centres (ACC), Control Towers (TWR), and Approach Control (APP) in Zurich and Geneva, including the apron management operations at Zurich Airport. It will also centrally coordinate the voice communication systems (VCS) rollout across Switzerland, incorporating advanced training for controllers and technical staff, a real-time operational validation system, and 15 years of support and maintenance.
In total, Indra Group will deploy 247 operational controller working positions, combining production systems, testing and training environments, along with enhanced redundancy and support capabilities. This integrated model ensures a low-risk implementation, facilitating a smoother transition and highly reliable operations and communications between air traffic controllers and pilots from day one.
The contract with Skyguide will modernise Switzerland’s critical air traffic communications infrastructure through the implementation of a unified, future-ready voice communications architecture. The new system will enable Skyguide to manage increasing air traffic demand with greater safety, efficiency and resilience, while further reinforcing Indra’s leadership in air traffic management technology and its position as a reference provider of voice communication systems for air traffic environments.
Voice communications are a critical element of operational safety, ensuring clear, secure, and uninterrupted exchanges between controllers and pilots. In this field, Indra Group brings extensive experience in developing advanced technologies that deliver high availability, resilience, and next-generation audio quality, tailored to the most demanding environments.
With systems deployed worldwide, including Indra’s advanced GAREX 300 Voice over IP communications system at Dubai International Airport (DXB) and Al Maktoum International Airport (DWC), the company has established itself as a trusted partner for air navigation service providers (ANSPs) seeking to modernize their communications infrastructure and address growing air traffic demands with robust, scalable, and future-ready solutions.