Jitter is the variation in network delay or latency in the arrival time of packets from sender to receiver. This can result in packet loss and can make network connections less reliable. Network jitter can be caused by a number of factors such as congestion, router processing delays, and varying network conditions. Low-quality or outdated network equipment and cabling can also contribute. Applications that require a high QoS, such as VOIP and video streaming, can be severely impacted by this. In order to minimize jitter in network connections, various techniques can be used such as traffic shaping, buffering, and packet prioritization. Jitter is also known as Irregular Network Delay.