Introduction
Monitoring Lync Call Quality Data.
Discovery with the agent
Collector Type: Agent
Category: Application Monitors
Application Name: Lync Call Quality
Global Template Name : Microsoft Lync Call Quality Monitoring DotNet v4
Pre-requisites : For Lync monitors need Microsoft .NET Framework 4.
Collected Metrics
| Metric Name | Display Name | Description |
|---|---|---|
| LyncCallQuality_Jitter | LyncCallQuality_Jitter | Jitter (ms) measures the variability of packet delay and results in a distorted or choppy audio experience. (Jitter is a measure of the "shakiness" of a call.) High jitter values are typically caused by congestion or an overloaded media server, and result in distorted or lost audio. |
| LyncCallQuality_PacketLoss | LyncCallQuality_PacketLoss | Average rate of RTP packet loss. (Packet loss occurs when RTP packets, a protocol used for transmitting audio and video across the Internet, failed to reach their destination.) High loss rates are generally caused by congestion, lack of bandwidth, wireless congestion or interference, or an overloaded media server. Packet loss typically results in distorted or lost audio. |
| LyncCallQuality_NetworkMOSDegradation | LyncCallQuality_NetworkMOSDegradation | Average network amount of mean opinion score (MOS) degradation is an integer represents the amount of the MOS value lost to network affects. |
| LyncCallQuality_RoundTripTime | LyncCallQuality_RoundTripTime | Network Round Trip Time (RTT) is the most common measure of latency and is measured in ms. This measure is the average round trip time for RTP packets between endpoints. When latency is high, users will likely hear the words, but there will be delays in sentences and words. |
| LyncCallQuality_Concealed | LyncCallQuality_Concealed | Average ratio of concealed audio samples to the total to the total number of samples. (A concealed audio sample is a technique used to smooth out the abrupt transition that would usually be caused by dropped network packets.) High values indicate significant levels of loss concealment applied caused by packet loss or jitter, and results in distorted or lost audio. |
| LyncCallQuality_Stretched | LyncCallQuality_Stretched | Average ratio of stretched audio samples to the total to the total number of samples. (Stretched audio is audio that has been expanded to help maintain call quality when a dropped network packet has been detected.) High values indicate significant levels of sample stretching caused by jitter, and result in audio sounding robotic or distorted. |
| LyncCallQuality_Suppressed | LyncCallQuality_Suppressed | Average ratio of compressed audio samples to the total number of samples. (Compressed audio is audio that has been compressed to help maintain call quality when a dropped network packet has been detected.) High values indicate significant levels of sample compression caused by jitter, and result in audio sounding accelerated or distorted. |