Cisco Expressway — independent third-party profile of a public API surface, by API Evangelist. API definitions for Cisco Expressway, a session border controller and firewall traversal solution for Unified Communications that provides secure remote and mobile access for collaboration workloads including video, voice, content, and presence.
sip collaboration video-conferencing firewall-traversal session-border-controller unified-communications apis-json h-323
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Updated
Sep 1, 2026