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Cisco 300-430 ENWLSI: Optimize Voice Experience on Cisco 5520 Series Wireless Controller for VoIP Software

Discover the best configuration settings to ensure optimal voice experience when transitioning to VoIP software on Cisco 5520 Series Wireless Controller. Learn how to prioritize voice traffic and assign the appropriate QoS profile for seamless communication.

Table of Contents

Question

A municipality customer uses a Cisco 5520 Series Wireless Controller for the wireless network. The customer intends to move the depot of its stores from using legacy bespoke voice-over-Wi-Fi handsets to a VoIP software package running on 5 GHz-capable laptops, tablets, and smartphones. Bluetooth headsets will be used for any voice communication on any data device. Assuming that a suitable RF site survey for 5 GHz has already been carried out, which two configuration settings ensure the best possible voice experience? (Choose two.)

A. Configure AVC on the controller to prioritize voice over other applications’ traffic on the same device.
B. Remark all traffic coming from the new voice-capable devices with DSCP 46 (EF) at the AP.
C. Assign the Platinum QoS profile to the SSID carrying the new-style voice traffic.
D. Create mobility groups and include all the APs in the high-density areas.
E. Turn off the 2.4 GHz radios on all APs where the voice application is used.

Answer

A. Configure AVC on the controller to prioritize voice over other applications’ traffic on the same device.
C. Assign the Platinum QoS profile to the SSID carrying the new-style voice traffic.

Explanation

Configuring Application Visibility and Control (AVC) on the Cisco 5520 Series Wireless Controller allows prioritization of voice traffic over other applications running on the same device. This ensures that voice packets receive the necessary bandwidth and minimal latency for optimal quality.

Assigning the Platinum QoS profile to the SSID carrying the voice traffic further prioritizes voice packets and guarantees the highest level of service. The Platinum profile provides the strictest QoS parameters, ensuring voice traffic receives the necessary resources for a seamless experience.

The other options are not as effective for this scenario:

B. Remarking traffic with DSCP 46 (EF) at the AP is unnecessary, as the Platinum QoS profile already ensures proper marking and prioritization.
D. Creating mobility groups is not directly related to optimizing voice quality and is more relevant for roaming between APs.
E. Turning off 2.4 GHz radios is not required, as the devices are 5 GHz-capable, and disabling 2.4 GHz may limit network coverage for other devices.

Implementing Cisco Enterprise Wireless Networks (300-430 ENWLSI) certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Implementing Cisco Enterprise Wireless Networks (300-430 ENWLSI) exam and earn Implementing Cisco Enterprise Wireless Networks (300-430 ENWLSI) certification.