Frequentis AG: FREQUENTIS C4i VOICE C2 successfully certified to operate on the US Department of Defense networks

Vienna / Austria (pta015/21.05.2024/10:07 UTC+2)

• Accreditation from the US DoD represents a significant vote of confidence in C4i's ability to safeguard critical communications for worldwide defence organisations
• VOICE C2 demonstrated its capability to provide highest levels of security and reliability for military communications
• Successful completion of cybersecurity and interoperability testing
• Solution is deployed in Air Force and used for Command Posts, Operations Centers, and Air Traffic Control

The Frequentis C4i VOICE C2 communication system has been approved by Defense Information Security (DISA) for listing on the Department of Defense (DoD) information network (DoDIN) approved products list (APL) following recertification by the Joint Interoperability Test Command (JITC). The successful completion of cybersecurity and interoperability testing reaffirms C4i's status as an industry leader in defence communications technology. The DISA security technical information guide (STIG) encompasses a comprehensive set of mandated cybersecurity guidelines and best practices. These guidelines prescribe the configurations, settings, and security measures required to ensure the protection of information systems within U.S. DoD networks.

VOICE C2 is deployed in Air Traffic Control, Air Defense, Battle Management Systems, Air Force Command Posts, and test and training ranges. Voice-over-IP (VoIP) at the core is utilised to deliver communication systems with highly scalable radio, telephone, intercom, and conferencing capabilities. Interoperability with DoD telephony using AS-SIP and supporting Multi-Level Precedence and Preemption was included in the certification testing.

Through rigorous testing and adherence to DISA's exacting standards, VOICE C2 has demonstrated its ability to provide the highest levels of security and reliability for military communications. Earning JITC Certification demonstrates Frequentis/C4i's ongoing commitment to excellence in security.

What JITC Certification means for our customers: meeting worldwide security demands

Maintaining our position on the APL and earning recognition from the U.S. DoD brings substantial advantages to our customers in the US and worldwide, including:

• Enabling seamless cross-border operations and integration with partner networks and operations
• Simplifying implementation, reducing compatibility concerns, and facilitating worldwide deployment
• Safeguarding critical communications to the most stringent standards of defence agencies globally
• Aligning with international security practices and standards
• Mitigating the risks of non-compliance, providing peace of mind and clear operational advantages

"Our holistic approach to cybersecurity encompasses system hardware, network security, system monitoring, system management, protection measures, and information assurance. This latest accreditation from the DoD represents a significant vote of confidence in our ability to safeguard the integrity and confidentiality of critical communications for defence organisations worldwide," says Darren Gardner, C4i Managing Director.

About C4i

C4i is a member of the Frequentis Group. Since 1989, C4i has led advancements in secure communications for the world's most demanding mission-critical environments. C4i's interoperable communications solutions are used by defence, governments, and industry in more than 40 countries. C4i products enable rapid response times, interoperability, and flexible asset utilization, and provide customers with ongoing cyber security protection.

About FREQUENTIS

Frequentis is a global supplier of communication and information systems for control centres with safety-critical tasks. The listed family company develops and markets its "control centre solutions" in the Air Traffic Management segment (civil and military air traffic control, air defence) and the Public Safety & Transport segment (police, fire brigades, emergency rescue services, railways, coastguards, port authorities). With a market share of 30%, Frequentis is the world market leader in voice communication systems for air traffic control. Frequentis is also the global leader in aeronautical information management and aeronautical message handling systems.

As a global player with around 2,200 employees (full-time equivalents/FTE), Frequentis has a global network of companies and representatives in more than 50 countries. Its head office is in Vienna, Austria. Frequentis' products, services, and solutions are used at more than 49,000 operator working positions in around 150 countries. Shares in Frequentis are traded on the Vienna and Frankfurt stock exchanges; ISIN: ATFREQUENT09, WKN: A2PHG5. In 2023, revenues were EUR 427.5 million and EBIT was EUR 26.6 million.

Wherever Frequentis' systems are used, safety-critical operators bear responsibility for the safety of other people and goods. The company also works towards a more sustainable future through its air traffic optimisation solutions.

For more information, please visit www.frequentis.com

Barbara Fuerchtegott, Head of Communications/Company Spokesperson
barbara.fuerchtegott@frequentis.com, +43 1 81150-4631

Stefan Marin, Head of Investor Relations
stefan.marin@frequentis.com, +43 1 81150-1074

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Emitter:	Frequentis AG Innovationsstraße 1 1100 Wien Austria
Contact Person:	Stefan Marin
Phone:	+431811501074
E-Mail:	stefan.marin@frequentis.com
Website:	www.frequentis.com
ISIN(s):	ATFREQUENT09 (Share)
Stock Exchange(s):	Vienna Stock Exchange (Official Trade)
Other Stock Exchanges:	Regulierter Markt in Frankfurt