An engineer with troubleshoots poor voice quality on multiple calls. After looking at packet captures, the engineer notices high levels of jitter. Which two areas does the engineer check to prevent…

Classifying and marking voice packets with appropriate QoS values (e.g., DSCP EF) ensures they receive preferential treatment across the network, reducing queueing delays and variability in arrival times, which directly prevents jitter.

While wired connections generally provide more consistent performance, making all devices wired is a general best practice, not a specific area to check for preventing jitter caused by a specific issue in a capture.

Ensuring the network meets bandwidth requirements is fundamental to preventing jitter. Insufficient bandwidth leads to congestion, causing packets to be queued, dropped, or delayed inconsistently, all of which contribute to high jitter.

The role of a Cisco Unified Border Element (CUBE) is to manage voice traffic and interconnect different SIP domains; its function doesn't inherently prevent jitter across the entire network path.

Enabling MTP (Media Termination Point) on a SIP trunk is primarily for media transcoding, DTMF relay, or handling specific SIP signaling issues, not directly for preventing jitter caused by network conditions.