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Network quality for voice and video
Turn latency, jitter and packet loss into an R-factor and a mean opinion score (MOS).
Performance & capacityHow it's worked out
- Effective latency = latency + 2 × jitter + 10. R = 93.2 − latency effect − 2.5 × loss %. MOS from R (ITU-T G.107 mapping)
- Simplified E-model used in network monitoring tools
NoteA MOS of about 4 or more is good for calls. Packet loss usually hurts more than latency.
Source: ITU-T G.107 (E-model); ITU-T P.800 (MOS)
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