Clients need access to a less congested 5 GHz band for better voice quality. Which feature must be enabled on the WLAN?

Band Select, also known as band steering, encourages dual-band clients to connect to the less congested 5 GHz band. This improves overall network performance and client experience, especially for latency-sensitive applications like voice. DTIM (Delivery Traffic Indication Message) is related to power saving for clients and doesn't directly influence band selection. RX-SOP (Receive Start of Packet) is a radio sensitivity setting that helps mitigate co-channel interference, not band preference. AAA override allows the authentication server to dictate WLAN parameters for a client, but it doesn't automatically steer clients to a specific band.