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The backbone of modern voice networks
In today’s voice and unified communications world, Session Border Controllers (SBCs) play a silent but absolutely critical role. They sit at the border between networks – for example, between an enterprise and a telecom provider – and ensure that all real-time voice traffic flows securely and smoothly.
Why do we need SBCs? Because traditional firewalls can’t handle SIP-based voice sessions. SBCs secure VoIP and UCaaS traffic by blocking malicious attacks such as toll fraud or denial-of-service, hiding internal network details, and enforcing compliance. They also act as intelligent translators, connecting different voice and video systems by managing protocols, codecs, and quality of service (QoS).
As nearly 90% of organizations now use UCaaS platforms like Microsoft Teams, Zoom Phone, or Webex, SBCs have become indispensable. Without them, unified communications simply wouldn’t connect reliably to the PSTN or SIP trunks.
The complexity challenge
Yet, running SBCs isn’t simple. Configuration, policy management, routing, firmware updates, and troubleshooting require deep expertise. Enterprises often lack this expertise internally, leading to high costs, operational risks, and potential service disruptions.
That’s where telecom operators and system integrators come in – managing this complexity as a service for customers who want reliable, secure voice without the headache. In the past it used to be CAPEX intensive projects with considerable managed services.
Introducing SBC as a Service (SBCaaS)
SBCaaS (Session Border Controller as a Service) brings the benefits of SBCs into the cloud era. Instead of buying, installing, and maintaining an SBC appliance, enterprises consume it as a managed service from their provider. For the integrator and operator an opportunity to develop a new recurring service.
Delivered on a subscription or usage-based model, SBCaaS eliminates CAPEX and simplifies management. Customers connect their systems securely and can easily scale capacity, add routing rules, or view analytics through intuitive portals – while the provider or operator handles updates, redundancy, and compliance in the background.
The result: carrier-grade security, interoperability, and reliability – without the complexity.
Netaxis: Powering the next generation of SBCaaS
At Netaxis, we empower telecom operators to deliver world-class SBCaaS offerings through our innovative automation and routing platforms. Our solutions help operators simplify SBC management, integrate with UCaaS platforms, and deliver multi-tenant managed SBCs at scale.
Today, tens of leading operators worldwide rely on Netaxis to automate and secure their voice networks – turning SBC complexity into opportunity.
