You support Microsoft Lync Server 2013 in your company network. Your company has four buildings on a single site. A user reports that when she calls users in another building, the call quality is…

You support Microsoft Lync Server 2013 in your company network. Your company has four buildings on a single site. A user reports that when she calls users in another building, the call quality is poor. You receive the Quality of Experience (QoE) report:

Capture device:

Headset MicrophoneRender device:

Headset EarphoneMicrophone timestamp error: 0.02ms Echo percent microphone in: 15.21% Codec: SIRENAudio FEC: FalsePacket utilization: 32701 Avg. packet loss rate: 10.21% Avg. jitter: 23ms Avg. round trip: 62ms Avg. network MOS: 3.71 Avg. network MOS degradation (jitter):0.00% Avg. sending MOS: 2.97 Avg. listening MOS: 3.17 Receive noise level: - 56dBoV Which of the following values is outside acceptable limits?