This whitepaper argues that the SBC is shifting from a tactical edge component into core enabling infrastructure because cloud, 5G/LTE, market change, and customer demand are expanding the number of services that depend on secure, adaptable interworking at network boundaries. It highlights four growing SBC use cases: supporting WebRTC voice and video by handling codec interworking, transcoding, and secure breakout to other networks for collaboration and contact-centre scenarios, future-proofing OTT voice and messaging by keeping pace with new codecs and VoLTE through continual updates, enabling “fighter brand” MVNO launches by providing secure voice infrastructure that can scale independently, and aligning SBC operations with cloud-native automation via frameworks like Ansible and ETSI MAN

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