Random Jitter, also called Gaussian jitter, is unpredictable electronic timing noise. Therefore, VoIP implementations may face problems with latency, packet loss, and jitter. This reduces the latency time and also the jitter for the cyclic data. These applications and their usage are much more sensitive to jitter, latency and packet losses. Clock jitter is caused by phase noise. A network with constant delay has no packet jitter. An artificial jitter (dither) can be used in electronics for reducing quantization errors in A/D-Elements. The EF PHB has the characteristics of low delay, low loss and low jitter. The effect of jitter on the signal depends on the nature of the jitter. Frequency and proportion of particular abnormal action potential patterns, called "jitter" and "blocking", are diagnostic. There are standards for jitter measurement in serial bus architectures. A dejitterizer is usually ineffective in dealing with low-frequency jitter, such as waiting-time jitter. A filter can be designed to minimize the effect of sampling jitter. Most extraction programs perform seek jitter correction. The variance between these phases is called tracking jitter.