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: 0.02msEcho percent microphone in: 15.21%Codec: SIRENAudio FEC: FalsePacket utilization: 32701Avg. packet loss rate: 10.21%Avg. jitter: 23msAvg. round trip: 62msAvg. network MOS: 3.71Avg. network MOS degradation
(jitter):0.00%Avg. sending MOS: 2.97Avg. listening MOS: 3.17Receive noise level:
-56dBoV

Which of the following values is outside acceptable limits?