Maintain voice service continuity at the SIP edge with the AudioCodes Mediant 500 ESBC. Designed for enterprise unified communications environments, this platform provides session border control in a compact footprint while supporting 2 active/standby processing paths for higher availability. That matters when voice traffic must stay protected, policy-compliant, and stable across carrier and internal network boundaries. The Mediant 500 ESBC is suited to organizations that need a controlled demarcation point for SIP trunks, hosted voice services, and interconnect scenarios. By placing session border control at the edge, it helps preserve call quality, manage signaling behavior, and reduce exposure to malformed or unauthorized traffic. The active/standby design adds resilience for teams that cannot afford a single point of failure in the voice path. For infrastructure teams, this model fits deployments where reliability and control are worth more than a basic gateway. It is a practical choice for environments standardizing on AudioCodes voice infrastructure and looking for a platform that can support business-critical communications without unnecessary complexity.