Avaya XT Series XT5000 Series XT4000 Series

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The link quality indicator level is evaluated separately for audio, video, and presentation streams,

based on the average packet loss percentage of the last five seconds. The worst of the three

calculated levels is then displayed.

Quality Average Packet Loss

Icon Level Audio Video Presentation

Excellent <=3 <=1 <=1

Good >3 >1 >1

Normal >7 >3 >3

Bad >10 >5 >5

Problematic >15 >10 >10

For example, if the overall link quality indicator level is Excellent, it means that the average packet

loss is now less than 3% for audio, 1% for video, and 1% for presentation.

Procedure

• In a point to point call, the link quality indicator level is displayed in the XT Series user

interface top header. If the level is Normal or below, it is also displayed as an alert over the

video, when the top header is not visible.

Figure 57: Top Header

• In a multipoint call hosted by the XT Series built-in MCU, the link quality indicator level is

displayed as overlay image on the remote participants' video. The level is also available in

the statistics of each active call.

Figure 58: Video Overlay

Avaya XT Series XT5000 Series XT4000 Series - Page 104