Number of dropout starts while in-call.
Number of dropouts that recovered.
Median of sampled audioJitterMs, or null.
Median of sampled rttMs, or null.
MOS estimate (heuristic). null unless all of
medianLatencyMs, medianJitterMs, and packetLossPct are defined.
Call-level audio rx packet loss percentage, computed from counter
deltas over the in-call window (NOT a median of cumulative loss %).
null until at least one usable audio-loss sample is seen.
Count of stats samples that contributed ≥1 usable quality field (a latency/jitter gauge, or a loss interval that was actually accumulated). Diagnostic only — the MOS null policy gates on the three medians being non-null, not on this count.
Σ of dropout interval durations in ms.
Immutable snapshot of aggregate call quality, computed by the SDK and consumed by hosts to populate their call-ended analytics. Updated live during the call and finalized at call end; remains readable after the session stops.