Why operators need an independent partner?
European operators’ voice networks rely on SBC infrastructure from global vendors such as Oracle, Ribbon, Nokia or Ericsson. Regardless of the vendor’s origin, the new European regulatory framework (CRA, NIS2, 5G Toolbox) requires operators to demonstrate effective, sovereign control over these critical assets.
The vendor provides the technology. The European integrator operates it, monitors it independently, manages the cryptographic keys and assumes regulatory liability under EU jurisdiction.
Quobis is that European integrator.
Controlled use with mitigation
Regulatory compliance is not only a vendor selection problem. It is an architectural and operational problem. Operators need to decouple critical functions so that security, monitoring, key management and day-to-day operation (daily changes, routing, troubleshooting and preventive maintenance performed) remain under European control.
Deactivate non-essential functions
Quobis analyses which SBC functions are critical and which can be externalised to EU-controlled components (analytics, recording, transcoding).
Vendor-independent monitoring
Quobis VoIP Network Monitor operates outside the vendor’s stack, giving the operator real visibility.
Operation by EU-resident personnel
Quobis team in Spain — no dependency on NOCs in USA/Israel for daily operations.
Cryptographic key management outside the vendor (HYOK)
Quobis configures TLS/SRTP with keys managed by the operator, not the SBC manufacturer.
Functional decoupling
Analytics, media processing, recording, monitoring or routing logic can be separated from the SBC vendor when required by the architecture.
Controlled vendor access
Any remote support from the manufacturer can be authorised, limited and supervised by a European integrator.
delivered by Quobis
Core SBC roles
Advanced Security & Voice Firewall
Protecting the operator’s network against fraud, attacks and unauthorised access.
Interoperability & Normalisation
Resolving incompatibilities between different network domains, SIP variants and equipment vendors.
Session Control & Intelligent Routing
Managing the operator’s voice traffic with intelligent routing, load balancing and high availability.
Quality of Service (QoS) Management
Ensuring voice quality across the operator’s network with proactive monitoring and admission control.
Operator Interconnection (Peering)
Connecting the operator’s network with other carriers securely, with normalisation and at scale.
Integration with IMS architectures
When the operator’s architecture includes an IMS core, the SBC assumes complementary roles:
Quobis services for operators
The real challenge is not choosing a single box, but designing an architecture where each SBC role delivers security, interoperability and scalability without creating vendor lock-in or sovereignty gaps.
20 years of telecom engineering
