A successful Voice over Internet Protocol (VoIP) implementation involves quality of service (QoS) management that is affected by three major factors:
Delay: Significant end-to-end delay can cause echo and talker overlap.
Packet loss: During peak network loads and periods of congestion, voice data packets might drop.
Jitter (Delay variability): Data packets arrive at their destination at irregular intervals because of variable transmission delay over the network.
For more information about these QoS factors and network quality management, see:
