Session Border Controller (SBC)

Definition - What does Session Border Controller (SBC) mean?

A session border controller (SBC) is an application that applies signaling and media stream control to interactive types of communication. SBC is deployed in Voice over Internet Protocol (VoIP) networks.

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Techopedia explains Session Border Controller (SBC)

A SBC manages data session communication between two entities and is associated with the following voice call streams:

One or more management signaling exchanges
One or more media streams containing audio, video and/or statistical data

Early SBC versions used a peer-to-peer (P2P) system for network border management. This functionality was gradually expanded to manage major service provider and backbone network deployments for residential and enterprise clients.