Refer to the exhibit. A VoWLAN has been deployed at a customer site. and users report that audio is choppy in some areas The exhibit captures a voice exchange between one phone that is associated to…

Changing the basic rate configuration to include 54 Mbps would force all clients to support this higher rate, which can worsen voice quality in areas with poor signal strength by making connections less reliable and increasing retransmissions.

While changing the WLAN QoS profile to platinum correctly prioritizes voice traffic, it does not address underlying RF signal issues or inefficient client behavior at the physical layer that contribute to choppy audio.

Decreasing the AP power level would reduce the access point's coverage area and signal strength, which would likely exacerbate the choppy audio problem by creating more areas with weak or no signal, leading to poorer performance for voice clients.

Disabling higher data rates (e.g., 24, 36, 48, 54 Mbps) on the Wireless LAN Controller (WLC) forces clients in areas with weak Wi-Fi signals to utilize more reliable, lower data rates. This increases the effective range and stability of the wireless connection by reducing the need for retransmissions and encouraging clients to roam sooner to a stronger access point, thereby enhancing voice quality of experience by minimizing choppiness.