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 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 …

Integrated counter UAV solution led by FREQUENTIS and HENSOLDT

Frequentis and HENSOLDT sign Memorandum of Understanding (MoU) to intensify collaboration on integrated counter drone solutions for airports Frequentis, the leading Air Traffic Management (ATM) solution provider, and defence and security sensor specialist HENSOLDT are combing …

FREQUENTIS modernises voice communication at Hong Kong International Airport

The Hong Kong Civil Aviation Department (HKCAD) has selected Frequentis to successfully commission, the Frequentis’ VCS3020X at the backup air traffic control centre of the Hong Kong International Airport. This will allow the continuous modernisation …

Denmark’s Naviair to tackle airspace efficiency and service provision with integrated remote tower and approach centre from FREQUENTIS DFS AEROSENSE

Frequentis Remote Tower has already been selected by seven countries worldwide Naviair, the Air Navigation Service Provider (ANSP) of Denmark, has selected an integrated remote tower and approach system from FREQUENTIS DFS AEROSENSE, in order to …

Bahrain to upgrade ATC communications with FREQUENTIS

Bahrain Ministry of Transportation and Telecommunications’ (MTT) Civil Aviation Affairs (CAA) selects Frequentis for voice communication system (VCS) modernisation Bahrain MTT Civil Aviation Affairs (CAA) announced that it has awarded Frequentis the contract to modernise the …

Brazil implements South America’s first remote air traffic control tower with FREQUENTIS

Frequentis installs remote tower technology for Santa Cruz Airbase in Brazil On October 18th Brazil successfully installed the Frequentis smartVISION solution at Santa Cruz airbase in order to enhance the way air traffic is monitored and …

FREQUENTIS and DIMETOR partner for safe Beyond Visual Line of Sight (BVLOS) drone flights

BVLOS drone operations open door for more innovative applications and expansion Beyond Visual Line of Sight (BVLOS) drone operations are key for future commercial unmanned aerial vehicles (UAV) use cases, including public safety, industrial inspection and …

New Beijing mega-airport opens with FREQUENTIS networked voice communication system at its core

Success for Civil Aviation Administration of China (CAAC) and Air Traffic Management Bureau (ATMB) as mega-hub, Beijing Daxing International opens The highly anticipated Chinese aviation hub, Beijing Daxing International, was officially opened on September 25th in …

SESAR JU GOF U-space project: Final demo with piloted air taxi flight successfully completed

On 29 August, the last SESAR JU Gulf of Finland (GOF) U-space demonstration took place in Helsinki, Finland, showing how integrated Air Traffic Management (ATM) and Unmanned Traffic Management (UTM) systems enable urban air mobility: …

US Navy selects FREQUENTIS voice communication system for MQ-25 unmanned air system

Frequentis to equip voice communication system for Navy’s Unmanned Carrier Aviation Mission Control System The U.S. Navy awarded Frequentis a contract to provide the IP-based voice communications system for the Unmanned Carrier Aviation Mission Control System …

SESAR2020 common AIM services PJ.15-10 and PJ.15-11: Validation week successfully completed

On 12 July, the successful validation week of the SESAR projects 15-10, Static Aeronautical Data Common Service, and 15-11, Aeronautical Digital Map Common Service, in the context of the SESAR2020 framework was completed with an …

SESAR JU GOF U-space project: First demos successfully completed

The two demos marked first steps in the Gulf of Finland (GOF) U-space very large demonstrator, but a leap for the implementation of unmanned traffic management (UTM) in Europe. For the first time ever, general …

Dutch air traffic controllers work with FREQUENTIS to implement electronic flight strips

Air Traffic Control the Netherlands (LVNL) selected Frequentis electronic flight strips as part of its tower system modernisation program that is being deployed in accordance with the Pilot Common Project (PCP) regulations. Two towers at …

SESAR GOF U-space project: Start of demonstrations in June 2019

With the start of the first demonstrations in June 2019, the SESAR Joint Undertaking Gulf of Finland (GOF) U-space project in Estonia and Finland is soon entering the next important phase. Seven advanced drone operational …

Jersey Airport becomes the first British airport to manage air traffic using digital Remote Tower technology

Jersey Airport, part of Ports of Jersey Limited, has become the first British airport to achieve approval for operational use of a digital Remote Tower. This marks the first time this type of system has …

Saudi Air Navigation Services (SANS) selects FREQUENTIS for mobile tower solution

The Saudi Air Navigation Services Co. (SANS) has chosen Frequentis to provide a deployable mobile tower to support its air traffic control (ATC) modernisation program. Initially one mobile tower container will be provided, allowing SANS …

FREQUENTIS and SUNHILLO launch UAS-C to securely connect drone pilots and air traffic control (ATC)

Jointly developed unmanned aerial system connector (UAS-C) allows two-way voice and surveillance data exchange between drones and ATC As the number of unmanned aerial vehicles (UAVs) or systems (UASs) used for civilian and military applications continue …

Kazakhstan enhances safety-critical communication and data exchange with FREQUENTIS vitalsphereTM network solution

Frequentis modernises Kazakhstan’s ATM-grade communication network within the Almaty flight information region (FIR) Frequentis VCX-IP network solution has been successfully installed in Kazakhstan, allowing the exchange of safety-critical communication and data to advance Almaty FIR to …


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