Poor VoIP Call Quality

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In this example, a

Voice Consolidated Report

indicates a warning level (yellow) shortly after starting a new call. The Wi-Fi parameters show that RSSI is -70 dbm, indicating a low coverage area, the

VoIP Link Quality

< 4, and the

Errors

parameter displays the reason

Packet loss exceeded

, directly impacting the voice experience.

Item	Description
1	VoIP Link Quality < 4 considered poor VoIP call quality
2	Poor VoIP Link Quality due to packet loss exceeded
3	Packet loss results in poor VoIP performance, e.g., choppiness

Warning Details

Sub-Reports

shows that an

RSSI

value of -71 dbm, which indicates a

Poor Coverage Area

as shown in the

Reason

field, is the cause of increased packet loss and poor voice quality.

Item	Description
1	RSSI -71 indicates poor coverage, Reason: Poor Coverage Area

Based on this sample screen, the WLAN administrator should consider deploying additional APs in poor coverage areas to address WLAN coverage deficiency, and/or correcting the AP beaconing transmit power to increase RF cell sizes.

After taking corrective action, re-run Voice Analysis while placing new test VoIP calls with the deployed voice application, and ensure the

Voice Consolidated Report Info

reflects the WLAN updates, as shown in the following screen depicting good voice quality.

Expand the

Voice Consolidated Report Info

to view voice quality measures such as VoIP link quality (MoS) and associated parameters such as packet loss, jitter, and latency.