FREQUENTIS strengthens cyber security competence with acquisition of German safety-critical VoIP expert FRAFOS

FRAFOS will provide important security components for Frequentis communication solutions in all safety-critical domains – FRAFOS solutions are approved for mission-critical installations in government organisations and certified by the German central certification body for IT system security (BSI).

“Software solutions in virtualised environments require enhanced security and network monitoring, to protect against potential cyber-attacks. With FRAFOS we have found an expert in VoIP Firewalls to support us in our solutions for safety-critical domains, allowing advanced prevention of denial-of-service attacks (DoS) and fraud attempts on the border of communication networks,” says Norbert Haslacher, CEO Frequentis. “We are pleased to add FRAFOS to our growing Group of companies that support our mission to be number one in control centre solutions.”

Founded in 2010, FRAFOS is a leading provider of IT security solutions for VoIP communication in Germany, offering various software products, including cloud-native solutions developed for virtualised environments, and public-service-approved solutions for mission-critical installations.

The FRAFOS Session Border Control (SBC) solution separates networks from open, untrusted internet access, blocks DoS attacks and fraud attempts, hides the internal network structure from outsiders, and blacklists suspicious sources. It also provides a central logging and monitoring point while enforcing certain policies for security, availability, and routing, including the number of allowed calls, the IP addresses to block, and server routing.

“We are pleased to become a member of the Frequentis Group, with whom we have already established strong relations in recent years, joining an innovative family company. Together we can expand our footprint in the public and private sector and enhance our product portfolio to address the ATM market,” says Dorgham Sisalem, Co-Founder FRAFOS.

The FRAFOS Secunet SBC is developed in cooperation with Secunet AG, combining IP firewall and SBC and providing required separation of data and voice networks in governmental environments. The FRAFOS Secunet SBC solution is the only solution in Germany certified by the German central certification body for IT system security (Bundesamt für Sicherheit in der Informationstechnik – BSI).

The acquisition of FRAFOS will enhance Frequentis’ comprehensive portfolio of products through its cyber security capability and proficiency. FRAFOS will continue to operate from its base in Berlin and offices in Prague. The current FRAFOS team will remain responsible for supporting and growing its customer base, with the same team and quality as had previously been successful. For more information, please visit

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