Which GUI QoS profile should be selected for voice over WLAN?

Platinum is the correct QoS profile for voice over WLAN because it prioritizes traffic with the highest DSCP (Differentiated Services Code Point) value, typically EF (Expedited Forwarding), which is essential for real-time applications like voice. Voice traffic is highly sensitive to delay and jitter, and Platinum ensures it receives preferential treatment, minimizing these issues. Bronze, Gold, and Silver profiles offer progressively lower priorities, making them unsuitable for voice. Bronze is typically for best-effort traffic, Silver for general data, and Gold for business-critical data that is less delay-sensitive than voice.