The meeting itself
How this is scored
Whether the call works: participant capacity, video and audio quality under load, screen sharing, breakout rooms, moderation, and what happens on a bad connection.
0 — Not a meeting tool: no multi-party video calls, only one-to-one calls or recorded video.
3 — Video meetings with screen sharing, chat and host controls such as mute-all.
5 — Meetings with a stated participant limit per plan, screen sharing, breakout rooms or a waiting room, and host moderation (mute, remove, assign co-hosts).
8 — Large meetings and webinars with published capacity limits, per-participant moderation and waiting rooms, layout control, simulcast or adaptive bitrate stated, and behaviour on constrained or mobile networks documented.
10 — Scale and control are engineering claims the vendor stands behind: capacity published per plan and per region, selective forwarding with adaptive quality documented, live streaming, hardware-room support, and diagnostics an admin can read after a bad call.
The Security Officer
Content sharing, an in-call whiteboard with host-granted control, and multiparty HD across desktops, mobiles and room systems are documented, and the adaptive-layering architecture with stated behaviour on Internet, LTE, 3G and 4G networks is more engineering detail than most vendors publish. What I could not find is a stated participant limit for live meetings, any waiting room or breakout rooms, or host moderation such as muting or removing participants — the only capacity figure (300) covers concurrent views of recorded content, not people in a call. 2 3 6 7