VoIP Burst Percentage
The percentage of time the connection experienced burst periods, which are periods characterized by high rates of packet loss in comparison with the time periods that frame them (which are called gaps). Long bursts or frequent bursts can quickly degrade call quality, especially when coupled with high burst densities. Long burst periods with high densities often point to some type of media failure such as a bad cable or poor quality wireless signal. Shorter burst periods often point to network congestion as the culprit.
Unlike the packet loss during gaps (in other words, periods of low-rate packet loss), bursts of high-rate packet loss can quickly overwhelm the packet loss concealment technologies that are built into most VoIP equipment.