Zoom details 99.9% uptime architecture across Meetings and Phone
Zoom published a technical library article detailing the architectural principles behind its Unified Communications as a Service (UCaaS) and Contact Center as a Service (CCaaS) offerings, focusing on reliability, scalability, and hybrid deployment options. The article outlines active-active redundancy, adaptive media delivery, and features like AI Companion and Zoom Mesh, supported by a global distributed data center network. It highlights how these architectural decisions enable a consistent, secure, and manageable experience across its product suite, including Meetings, Phone, and Contact Center.
Key Takeaways
- Zoom says its Meeting Zones are duplicated in each data center, with MMRs, Zone Controllers, and a Global Cloud Controller balancing resources across locations.
- The Meetings architecture uses UDP first, then falls back to TCP/TLS and HTTPS/443, while screen sharing uses Reliable UDP when possible.
- Zoom Phone routes calls to the nearest SIP Zone, uses redundant SBCs in each data center, and exposes MOS plus QoS data in the Zoom Phone Dashboard.
- Zoom Mesh is described as a native eCDN that redistributes meeting and webinar media inside a network using peer-to-peer technology.
- Zoom Node supports Zoom Meetings Hybrid and Zoom Phone Local Survivability, keeping internal media or core calling available on-premises if cloud links fail.
Why It Matters
Zoom is spelling out how it keeps Meetings, Phone, and Contact Center running through active-active data centers, adaptive transport, and on-premises survivability options. That matters for enterprise buyers evaluating whether a single vendor can cover cloud, hybrid, and recovery requirements without bolting on separate tools. The most concrete signals to watch are Zoom’s 50% excess capacity claim, its annual disaster-recovery testing, and whether deployments of Zoom Node, ZPLS, or Zoom Mesh show up in customer-facing rollout decisions.
Read full article at library.zoom.com
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