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secunet Session Border Controller secures VoIP calls – now also with NATO and EU approval

The secunet Session Border Controller (SBC), already proven in the German national environment and with VS-NfD approval and Common Criteria EAL4+ certification, has now also received approvals for use in NATO and the European Union. Within the context of these multinational organisations, authorities, armed forces and companies can now securely connect Voice over IP (VoIP) networks and subsequently share information classified as NATO RESTRICTED and RESTREINT UE/EU RESTRICTED via VoIP telephony and video conferencing. Dirk Jung and Dr Christopher Basting from the German Federal Office for Information Security (BSI) announced the new approval at the IT security trade fair it-sa 2025 in Nuremberg.

"The NATO and EU approval of the secunet SBC is a sign of greater digital sovereignty at European and multinational level," says Dr Kai Martius, Chief Technology Officer at secunet. "The ability to make secure VoIP calls and to use modern tools for voice communication even with classified content also boosts efficiency and resilience. Being the first German provider of such a solution with the relevant approvals, we are delighted to be able to contribute to this."

The secunet SBC enables the secure coupling and connection of VoIP networks with different security classifications – for example, between different locations or organisations. At the network transition, it forwards or rejects VoIP calls depending on whether the security criteria are met. This enables tap-proof telephone calls, conference calls and even web conferences to be carried out via VoIP. The solution also monitors VoIP traffic, thereby protecting against attacks.

In order to make VoIP calls with classified content, end devices with the appropriate approvals are required in addition to the secunet SBC. The SINA portfolio from secunet offers a wide range of highly secure components for various application scenarios with national and international approvals.

More information on the secunet Session Border Controller can be found here

In the photo, from left to right: Marc-Julian Siewert (secunet), Dirk Jung (BSI), Dr Christopher Basting (BSI), Dr Kai Martius (secunet).

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