An engineer must design a wireless voice network and is auditing the existing configuration. Which two actions must be taken? (Choose two.)

Enabling the Platinum QoS profile on the SSID configures the WLC to mark voice traffic with the highest available DSCP value (EF - Expedited Forwarding) and User Priority 6, ensuring voice packets receive preferential queuing and transmission over the wireless medium. Without this profile, voice packets are treated as best-effort traffic, resulting in latency and jitter that directly degrade call quality.

Coverage Hole Detection must remain enabled in voice deployments so the WLC can automatically compensate by increasing transmit power on neighboring APs when a gap is detected, preventing dropped calls.

Switch ports must be configured to trust DSCP markings so the wired infrastructure honors the QoS values applied by the WLC, maintaining end-to-end voice prioritization from the access point through to the call manager. If switch ports remark or ignore DSCP values, voice traffic loses its priority designation upon entering the wired network, causing degraded call quality despite correct wireless QoS configuration.

WMM must be enabled, not disabled, because it is the 802.11e-based mechanism that provides over-the-air prioritization of voice traffic above data traffic on the wireless medium.

Client Load Balancing must be disabled for voice networks because it can force clients to roam or delay association, causing call interruptions and unacceptable voice quality degradation.