VCS - Voice Communication Systems for Air Traffic Control

Frequentis develops and markets communication and information solutions for safety-critical applications. It offers its control centre solutions, products and services world-wide to a broad range of customers acting in various mission-critical fields.

Vital cornerstone for all business activities of Frequentis is its voice communication system. Voice communication devices are required and can be found in almost every mission critical control centre.

The company’s core business is civil air traffic management. where its voice communication systems brought Frequentis to the position of a world’s market leader for air traffic control. The same qualities that drive this success allow Frequentis to offer communication and information systems to other customers in defence, public safety, public transport and maritime markets.

Examples include deployable communication systems for military operations, command and control centre technologies for the emergency services, “tracking & tracing” systems for shipping authorities and GSM-R fixed terminal systems for national railways.

With headquarters in Vienna, Austria, Frequentis has an export share of 90%, reflecting the global nature of the business. The company employs about 850 staff, with subsidiaries, regional offices and representatives in over 50 countries.

Company Profile


    … customised solutions for safer skies

    Frequentis develops, builds and installs industry-leading communication, information and tower automation systems for managing air traffic. Our leading role entails our high commitment for innovation and future orientation – as is to be seen in our participation in the SESAR Joint Undertaking.

    We offer the following portfolio:

    • Innovative products, drawing on proven technology, state-of-the-art usability and decades of experience that ensure the highest safety standards for air traffic … and optimal working conditions for operators.
    • Customised solutions, based on in-depth understanding of our customers’ specific requirements and the nuances of air traffic control.
    • Cost-effective and flexible design, supporting integration with new and legacy systems … protecting your investments into the future.

    Communication Systems

    In the air traffic control community, Frequentis is a synonym for voice communication systems. Operators working on more than 12,000 positions across the globe rely on our technology, making us the world’s leading supplier.

    We provide civil and military communication solutions for any size of operation, from small standalone control towers to the largest networked ATM centres.

    Our voice communication systems are complemented by backup and simulation systems, voice/data recording systems, as well as intelligent voice/data gateways and network nodes.


    Information Systems

    Modern and safe air traffic control combines communication and decision technology with the information needed to support and execute quick and right decisions.

    Frequentis offers customisable information systems that deliver and display information in the most efficient and safe way for the users.

    Our solutions draw on the experience and expertise that saw a Frequentis-led team develop the world’s largest Aeronautical Information System (EAD) for EUROCONTROL.

    Tower Automation Systems

    With a growing variety of tower information flows, tasks and input systems, the possibility for human error increases accordingly. Inefficient work areas become cluttered with multiple screens and devices.

    Frequentis tower automation systems solve the problem with a set of tower and airport tools (TAPtools) covering all required systems from electronic flight strips to lighting control.

    These tools integrate with each other and third-party products through a standard user interface, designed to give control back to the operator.

Company News

Ports of Jersey upgrades airspace communication with FREQUENTIS IT voice system

Frequentis is successfully implementing three VCS systems in Jersey, supporting main, contingency and emergency operation systems Ports of Jersey Limited (PoJ) selected the Frequentis IT voice communication system (VCS) in late 2020 to upgrade three end …

FREQUENTIS: Acquisition of Australian-based C4i complements Frequentis global Defence portfolio

Completion of the acquisition of C4i Pty. Ltd., formalised on 30 July 2021, completes the L3Harris transaction of 23 February 2021 C4i will strengthen Frequentis worldwide Defence business and portfolio with its highly secure interoperable …

Royal Canadian Air Force trusts FREQUENTIS communication and recording technology for three new tactical control radars

Frequentis Canada Limited has been selected by the prime contractor Thales Canada Inc. to provide mission critical communication equipment for its Tactical Control Radar (TCR) contract with the Department of National Defence (DND). The contract, …

FREQUENTIS Defense, Inc. drives defense business growth with appointment of new President, Jay Balakirsky

International safety-critical solutions provider, Frequentis, has appointed its USA Vice President of Sales, Jay Balakirsky, as President Frequentis Defense Inc. in the USA. The move aims to increase Frequentis’ presence in the defense domain in …

Dronecloud and FREQUENTIS collaborate to integrate drone platform with ATC systems

Dronecloud, the drone Flight Management Software provider, has selected Frequentis to join a consortium that will collaborate on the development of open standard integrations to help unlock Beyond Visual Line of Sight (BVLOS) Drone flights …

Air traffic optimisation leader, Orthogon, joins FREQUENTIS Group in first step of L3Harris acquisition

Frequentis portfolio benefits from Orthogon software, capable of reducing air traffic controller workload and carbon emissions The former L3Harris Orthogon, based in Bremen, Germany, will now operate as Frequentis Orthogon. The company’s software benefits todays crowded …

FREQUENTIS digital cloud services: Paving the way for Estonian U-space

Estonian Air Navigation Services (EANS) has been working with Frequentis to create an environment where drones and civil aviation can coexist in the shared airspace. By integrating air traffic management (ATM) and unmanned traffic management …

Fraport Slovenia enhances aeronautical data quality with FREQUENTIS

Frequentis to support Ljubljana Airport with enhancing aeronautical data quality in line with its airport expansion Fraport Slovenia has selected Frequentis to enhance aeronautical data quality (ADQ) at Ljubljana airport with its solution, smartADQ. The solution …

FREQUENTIS acquires parts of the ATM product segment from L3Harris Technologies

The acquisition underpins Frequentis’ strong capabilities in voice communication solutions for civil and military Air Traffic Management (“ATM”) The transaction is expected to be completed in the second half of the year 2021 and is …

FREQUENTIS and Bayanat to support Dubai Air Navigation Services with airport contingency plans

Dubai International Airport (DXB) and Dubai World Central (DWC) to enhance pilot information services with Frequentis digital ATIS Frequentis and long-term partner Bayanat were selected by Dubai Air Navigation Services (dans) to supply two identical D-ATIS …

Skyguide expands collaboration with FREQUENTIS to advance its Virtual Centre strategy

Skyguide, a member of FABEC, is evaluating the Frequentis next generation IT voice communication system, VCS3020X, and its ability to support the next phases of implementing its virtual centre strategy, within its One Voice Program. …

FREQUENTIS and Avinor win Air Traffic Management award for ATM/UTM integration in Norway

The annual Air Traffic Management (ATM) magazine awards has selected Frequentis and Avinor Air Navigation Services (ANS), as the winner of its 2020 award for ATM/UTM (unmanned traffic management) integration. The project caught the attention …

SESAR JU kicks off urban air mobility research project GOF 2.0

With the further enhancement of unmanned aerial vehicles (UAVs) and air taxis in the rapidly growing drone market comes the need for the evolution of technologies and framework conditions for their safe coexistence with manned …

Latvia enhances pilot briefing services with FREQUENTIS’ online and mobile application

Latvian Air Navigation Services, Latvijas Gaisa Satiksme (LGS) selected Frequentis California to enhance its pilot briefing services to increase flight planning efficiency and safety, as well as ease of use for pilots. The Frequentis Integrated …

Skyguide prioritises customer experience and appoints FREQUENTIS for consulting to streamline proccesses

Switzerland’s air navigation services provider (ANSP), Skyguide, enlisted the support of Frequentis Control Room Consulting in order to effectively analyse potential enhancement in their internal information streams to improve customer satisfaction and deliver the best …

Swiss Department of Defence completes essential communication project milestones with FREQUENTIS

The Swiss Federal Office for Defence procurement, armasuisse, has worked closely with Frequentis to complete important contract milestones despite the pandemic travel restrictions. Frequentis is replacing the voice communication infrastructure of the Air Defense Direction …

Ports of Jersey modernises voice communication with FREQUENTIS

Ports of Jersey (PoJ) Limited has selected Frequentis next generation IT voice communication system (VCS) to upgrade three end of life systems at its main and contingency facilities, enhancing performance and availability. Jersey is the largest …

FREQUENTIS and Robots Expert to strengthen cooperation on U-space technologies in Finland and Estonia

Leading air traffic management (ATM) systems provider, Frequentis, and Finnish drone advisory specialist, Robots Expert, have signed an agreement for the delivery of U-space (unmanned airspace) related solutions in Finland and Estonia. Robots Expert will …

Avinor ANS begins roll out of first Nordic UTM system at two airport towers in Norway paving the way for its future tech-economy

Avinor Air Navigation Services (ANS) is working with Frequentis and Altitude Angel to implement an unmanned traffic management (UTM) system at 18 airport towers across Norway. The system, which is being tested in a real …

FREQUENTIS to deliver next generation voice communication system to Austrian Air Navigation Service Provider Austro Control

The award of the new voice communication system contract is a major milestone for Frequentis and Austro Control, which continues decades of successful cooperation. Austrian technology company Frequentis will provide a highly innovative solution that …


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