Example Concept: Quality of Service (QoS) for VoIP involves classifying and prioritizing voice traffic over other types of traffic to ensure reliable and high-quality voice communication. This is typically achieved by marking VoIP packets with a higher priority using Differentiated Services Code Point (DSCP) values, such as EF (Expedited Forwarding), and configuring network devices to allocate more bandwidth and lower latency to these packets. Traffic shaping and queuing mechanisms, such as Low Latency Queuing (LLQ), are also used to manage congestion and ensure that voice packets are transmitted promptly.