QoS in WAN for Voice and Video refers to the implementation of Quality of Service techniques across wide area networks to ensure reliable real-time communication. It prioritizes voice calls and video traffic over less critical data to maintain clear audio and smooth video performance. WAN environments often experience bandwidth limitations and latency, so QoS helps reduce jitter, packet loss, and communication delays. Network administrators use traffic classification, DSCP marking, bandwidth allocation, shaping, and low-latency queuing to optimize performance. These techniques ensure consistent communication quality between remote offices and distributed users. QoS in WAN for Voice and Video is essential for VoIP, video conferencing, and enterprise collaboration systems.
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