Stream classification in Call Quality Dashboard (CQD)

Publisher

Microsoft

URL

https://learn.microsoft.com/en-us/MicrosoftTeams/stream-classification-in-call-quality-dashboard

Published

2026-06-16

Updated

unknown

Accessed

2026-09-24

HTTP status

200

License

Microsoft Learn terms of use; no-redistribution; short excerpts and locators only

Source notes citing this source

• Microsoft states that an audio stream marked Poor by the network-threshold classifier was not necessarily poor quality or perceived as poor by the user, because the Teams media stack can mitigate network degradation beyond those thresholds. in context
• The CQD audio classifier marks a stream Poor when Packet Utilization exceeds 500 packets and any of these holds: average round trip over 500 ms, average packet loss rate over 0.1, or average jitter over 30 ms. in context
• The CQD 'QoE Record Available' dimension is True if a QoE report was received from either endpoint, and QoE reports from both endpoints are needed for the most accurate metrics. in context
• CQD marks a stream Unclassified when ICE connectivity failed (First or Second Connectivity Ice is FAILED) or when the metrics needed to classify it were not reported: no QoE report was received, the call was short, or packet utilization was low. in context
• For video streams with Packet Utilization over 500 packets, CQD checks the first available metric in order: local frame loss percentage over 50%, then frame rate average under 7, then post-FEC packet loss rate over 0.15; if none is available the stream is Unclassified. in context

Cite this source record

APA

WarmTransfer. (2026, June 16). Stream classification in Call Quality Dashboard (CQD). WarmTransfer. https://warmtransfer.net/knowledge/sources/ms-learn-cqd-stream-classification-b

BibTeX

@misc{warmtransfer-ms-learn-cqd-stream-classification-b,
  title  = {Stream classification in Call Quality Dashboard (CQD)},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/ms-learn-cqd-stream-classification-b},
  note   = {Microsoft, accessed 2026-09-24}
}